ESP32 with 16x2 LCD in Arduino IDE | Data Mode & I2C Mode

Hello readers, we hope you all are doing great. Welcome to the 1st lecture of Section 4 in the ESP32 Programming Series. In this section, we will interface the ESP32 module with common Embedded modules(i.e. LCD, Keypad, RTC etc.).

In today's tutorial, we will interface ESP32 with a 16x2 LCD and will display data using both Data Mode and I2C Mode. LCD is the most commonly used embedded module in IoT Projects. It is used to display different types of data i.e. sensor readings, warning messages, notifications etc.

Before going forward, let's first have a look at what is LCD and How it works:

Where To Buy?
No.ComponentsDistributorLink To Buy
1ESP32AmazonBuy Now

16x2 LCD Module

LCD(Liquid Crystal Display) is a type of electronic display module that is used in a wide variety of applications and devices such as calculators, computers, mobile phones, TVs, etc. There are different types of LCDs available for commercial use. Today, we are going to use the most simple one i.e. 16x2 LCD, shown in the below figure:

This 16x2 LCD has 16 columns and 2 rows, so in total of 32 blocks to display characters. Each Block can display a single character at a time. We can display text in different styles on this LCD i.e. blinking, scrolling etc. Another variant of this LCD is 20x4 LCD and as the name suggests, it has 20 columns and 4 rows and so can display 80 characters at a time. The operating principle of both of these LCDs is quite similar. So, if you are working with a 20x4 LCD, you can still follow this tutorial.

Let's have a look at the LCD pinout:

LCD Pinout

Both 16x2 and 20x4 LCDs have 16 pins each, used to control 7 write on these LCDs. Among these 16 pins, we have:

  • 8 Data Pins(Pin7-14)
  • 2 LCD Power Pins(Pin1 and 2)
  • 2 Backlight LED Power Pins(Pin15 and 16)
  • 1 Contrast Pin(Pin3)
  • 1 Enable Pin(Pin6)
  • 2 Selection Pins(Pin4 and 5)

LCD Pinout and its working is shown in the below table:

LCD Pinout
Pin No. Name Working
1
GND(Ground)
Connected to Ground Terminal.
2
Vcc(+5V)
Connected to +5V.
3
VE
To Control the LCD Contrast.
4
RS(Register Select) If RS=0(GND), LCD operates in Data Mode and we can write characters on the LCD.
If RS=1(+5V), LCD Command Mode gets activated and we can send commands to LCD i.e. erase, new line etc..
5
R/W(Read & Write) R/W=0(GND) enables the write operation on the LCD. (So, we normally keep this pin LOW, as we are interested in printing on the LCD).
R/W=1(+5V) enables the read operation on the LCD.
6
EN(Enable)
Enables the LCD to operate, so it should be kept HIGH.
7
Data Pin 0
LCD has a total of 8 Data Pins(D0-D7)
8
Data Pin 1
9
Data Pin 2
10
Data Pin 3
11
Data Pin 4
12
Data Pin 5
13
Data Pin 6
14
Data Pin 7
15
LED+
Connected to +5V. Turn on the backlight LED.
16
LED-
Connected to GND.

Now, let's interface the LCD with ESP32:

Interfacing LCD with ESP32

There are two methods to interface ESP32 with a 16x2 LCD:

  • Data Mode
  • I2C Mode

In the Data Mode, we use the LCD Data Pins and send data serially, while in the I2C mode, we solder an I2C adapter with the LCD, which acts as a bridge and maps I2C data coming from the microcontroller to the Data Pins. Let's first interface ESP32 and LCD via Data Pins:

LCD with ESP32 in Data Mode

As we discussed earlier, LCD has 8 Data Pins used to communicate with the Microcontroller. There are two ways to send data from the Microcontroller to the LCD:

  1. 4-Pin Method: In this method, we use 4 Data Pin of LCD(D0-D3) to get data from the microcontroller.
  2. 8-Pin Method: In this method, we use all the 8 Data Pins of LCD(D0-D7) to communicate with the microcontroller.

In complex projects, where you are dealing with multiple sensors & modules, its quite difficult to spare 8 Pins for LCD interfacing. So, normally 4-Pin method is preferred, which we are going to design next:

    Components Required

    Here are the components required to interface LCD with ESP32:

    1. ESP32 Development Board
    2. 16x2 LCD
    3. Potentiometer(To set the LCD Contrast)
    4. Jumper wires
    5. Breadboard

    Now, let's design the ESP32 LCD Circuit Diagram:

    Circuit Diagram

    • The circuit diagram of LCD interfacing with ESP32 via data pins is shown in the below figure:

    [Image]

    As you can see in the above figure:

    • Pin1 of the LCD is connected to the GND of ESP32.
    • Pin2 of the LCD is connected to the VIN of ESP32.
    • Pin3 of the LCD is connected to the Output Pin of the potentiometer,  the other two Pins of the Potentiometer are connected to Vcc and GND. So, we can change the voltage at this Pin3 from 0-5V by rotating the potentiometer's knob. You have to manually set its value to make the LCD text visible.

    Here's our hardware setup for ESP32 LCD Interfacing:

    [Image]

    Now let's design the Programming Code to print a simple message on the LCD:

    ESP32 Code for LCD

    We are using Arduino IDE to compile and upload code in the ESP32 module. If you haven't installed it yet, please read How to Install ESP32 in Arduino IDE. Here's the code to print a message on the LCD:

    #include 
    LiquidCrystal lcd(22,23,5,18,19,21);
    
    void setup()
    {
        lcd.begin(16, 2);
        lcd.clear();
    
        // go to row 0 column 5, note that this is indexed at 0
        lcd.setCursor(5,0);
        lcd.print("ESP32");
    
        // go to row 1 column 0, note that this is indexed at 0
        lcd.setCursor(0,1);
        lcd.print (" TheEnggProjects");
    }
    
    void loop()
    {
    }

    Code Description

    • The first step is to include the required library files. LiquidCrystal is the official Arduino Library to control the LCD.
    #include 
    • Next, we are initializing an "lcd" object of type "LiquidCrystal",  it takes the data and control pins as arguments.

    LiquidCrystal lcd(22,23,5,18,19,21);
    

    Setup() Function

    In the Setup() Function:

    • First of all, we initialized the 16x2 LCD using the begin() function. It takes the no of columns & rows of the LCD as an argument.

    lcd.begin(16, 2);
    

    So, if you are using a 20x4 LCD, you should change its arguments to 20 and 4, as shown below:

    lcd.begin(20, 4);
    • Next, we cleared the LCD screen, so if there's any garbage data printed on the LCD, it will be removed:

    lcd.clear();
    • setCursor command is used to set the LCD cursor at the specified position. Its first argument is "column position" and the second argument is "row position". In our case, we have set the Cursor at 6th Column and 1st Row. So, now when we print our message, it will be printed from this position.

    lcd.setCursor(5,0);
    • Finally, we printed our first message on the LCD using the print() command. The message string to be printed on the LCD is provided as an argument.

    lcd.print("ESP32");
    • At the end, we set the cursor.at 1st column & 2nd row, and printed the text:

    lcd.setCursor(0,1);
    lcd.print (" TheEnggProjects");
    

    As you can see, the LCD code is quite simple and I hope now you can easily print on the LCD. So, let's check the results:

    Results

    • Select the right development board from Tools >> Boards >> DOIT ESP32 DevKit V1 in Arduino IDE.
    • Compile and upload the code into ESP32 using Arduino IDE.
    • IF everything goes fine, your text messages will get printed on the LCD at the specified locations, as shown in the below figure:

    Common Errors faced while working on 16*2 LCD:

    • Texts are not visible: Backlight is ON but the texts are not visible (after uploading the code) as shown in the image below. To resolve this issue:
      • Check the potentiometer, whether it is connected properly or not.
      • Adjust the value of potentiometer to control brightness of the display.

    Fig. 6

    Only a single row with dark blocks is visible.

    Sol. : Check the EN pin.

    Fig. 7

    This concludes the tutorial. We hope you found this of some help and also hope to see you soon with a new tutorial on ESP32.

    Common Mistakes to Avoid When Investing in Technology for Your Venture

    Hello friends, I hope you all are doing great. In today's tutorial, we will have a look at the Common Mistakes to Avoid When Investing in Technology for Your Venture.

    Tech tools can make or break a business in this day and age, regardless of the industry or niche a venture is in. As such, it’s vital to source the best possible technologies that will help you make your organization the best it can be and the most likely to reach its goals. As you invest in technology, it pays to avoid some common mistakes.

    Mistake: Not Having a Plan

    Many entrepreneurs have a detailed business plan they created when they began or bought their business, but they fail to plan much for technology. It’s essential to have a vision and strategy for your technological needs so you don’t keep jumping from one system, app, or product to another with no clarity on why you need certain programs.

    A lack of planning can add to your total costs, too, since you’re more likely to have to keep buying new software to try to find the right things to suit your needs, rather than understanding from the start what’s required. Consider the various areas of your business and what you need in each.

    For example, think about your sales and marketing processes, HR and payroll requirements, finance and accounting needs, where you’re up to with strategic sourcing in 2022, customer service plans, and more. Where possible, invest in tech tools that can be used across different parts of your organization and that will integrate well, too.

    Mistake: Focusing on Trends Not the Best Fit

    With so many different tech products coming out all the time, it’s easy to be like a bowerbird and get distracted by shiny new objects in this field that seem fun and interesting. However, focusing on trends and the latest gear rather than what’s actually the best fit for your company and needs is a common mistake.

    Going down this path will mean you likely end up spending a lot more money than you need to on technology and buying devices or programs that aren’t suited to your business or are simply irrelevant. Instead, refer back to your tech plan to see if new products will provide the solutions you’re after and, if not, appreciate what they offer but don’t bother buying them.

    If you feel called to test a new offering, at least sign up for a free trial so you don’t have to outlay money on it. You can always cancel after the zero-cost introductory period if you can tell you really won’t use the software or that it doesn’t do enough for your needs.

    Mistake: Failing to Create a Budget

    Another common mistake many business owners and managers make is not creating a budget for technological items at the start of the calendar or financial year. When you have a budget in place, you stop and think twice before signing up for a subscription service when it releases or the latest gadget you hear other entrepreneurs talking about.

    A set budget specifically for tech goods keeps you on track financially and keeps you and your team accountable. Keep in mind, too, that every new tool you buy needs setting up and learning in some way, which is time-consuming. When you adhere to a budget, you’re less likely to end up getting bogged down with too many things to wrap your head around.

    Mistake: Not Taking Security Seriously Enough

    These days, hackers galore are continually working, and in ever-sophisticated ways, to break into networks and devices, steal data, lock and crash systems, and otherwise cause issues for individuals and organizations alike. As such, no matter the size of your business, it’s vital to take cybersecurity incredibly seriously.

    Unfortunately, though, many people get so busy with general day-to-day tasks that they forget about this area or think it’s something they can consider later (a time that never really comes until the worst happens). If you want to protect your firm’s and customers’ data from prying eyes and stop hackers from charging you ransom or stealing money, you need to spend plenty of time and energy upgrading your company’s security processes.

    Invest in quality, comprehensive security software and firewalls that protect devices and accounts. Ensure all computers and programs are kept updated at all times so there are fewer security gaps for hackers to take advantage of. Train your staff to be very careful about what links they click on and emails they open. They should choose solid passwords that can’t be easily guessed. Proper codes are at least eight characters in length, made up of a mixture of numbers, letters, and symbols, and changed every so often.

    Other mistakes to avoid include rushing into purchases, neglecting free downloadable tools, and not testing systems enough before going live or otherwise implementing them. Be wary of considering price only when evaluating products, as customer support, security, scalability, and other factors also matter.

    Technology can help us considerably to run our ventures but only when we invest in suitable options. Think about all these errors that others have made before you when buying tech tools so you can save yourself cash, headaches, and time.

    Writing First Code in Python (Hello World)

    The "Hello, World!" program is a computer programming classic that has stood the test of time. For beginners, "Hello, World!" is a simple and full first program that introduces the basic syntax of programming languages and can be used to evaluate systems and programming environments.

    The more you learn about Python, the more you may use it for your own purposes. Data analyst, application developer, or the ability to automate your work processes are all examples of jobs that can be automated.

    This Python 3 tutorial will show you how to create a simple "Hello, World" program. Python's basic syntax and components include the following:

    • Variable-types
    • Data structures
    • Math operators
    • loops
    • Different function calls
    • Input and output functions
    • Interfaces and classes
    • APIs memorize the syntax.

    Python`s IDE

    An IDE (Integrated Development Environment) is a software development tool. Integrated development environments (IDEs) include a variety of software development-specific tools. Examples of these instruments include:

    • Build, execution, and debugging tools
    • An editor intended to handle code (such as syntax highlighting)
    • The use of some type of version control

    There are many distinct programming languages supported by IDEs, as well as a wide range of additional functionality. Because of this, they can be very huge and take a long time to download and install. Using them correctly may necessitate additional training.

    Definition of function?

    A function is a piece of code that serves a single purpose and can be reused multiple times. Functions provide for greater modularity and code reuse in your program. Functions have the benefit of being well-known by a variety of names. Functions, methods, subroutines, procedures, etc. are all referred to in different ways by different programming languages. Think about what we'll be talking about later in this session if you come across any of these terms.

    Print function – What is it?

    Since you all learned Python by printing Hello, World! you might think that there is nothing new to learn about the Python Print function. As with any language, learning to use the Print function in Python or any other is like taking your first baby steps into a new world of programming. When studying a programming language, it's easy to get caught up in the more advanced concepts and lose sight of the simplicity and usefulness of basic functions.

    Today's tutorial is all about Python's Print function; you'll learn about one of the most underappreciated functions.

    For example, in Python3, parenthesis is required or else you'll get a syntax error as illustrated in the image below.

    In Python3, print () is not a statement but a function, as demonstrated by the above output. First things first, let's see what the print () function returns.

    Built-in functions and methods are returned by this method, which indicates that it is a Python function.

    A new line or vertical space between the two outputs can be added by simply using the print () function without sending any arguments in.

    The command Palette

    The Command Palette, which is possibly Atom's most essential command, is shown to us on that welcome page. The command palette will appear if you press Ctrl+Shift+P while in an editor pane.

    Writing the first Program

    Packages from the Atom community are available to help you assemble and run programs. We'll be utilizing "script" to run our application in this example.

    go to file>settings>install

    Install script by searching for it in the search bar. It should appear under "Packages" in the Settings menu after installation. Please be aware that script does not support human input. The "apm" package manager can be used to install packages on Mac OS or Linux.

    Creating our first project

    Go to File > Add Project Folder in atom and pick a directory to serve as the project's root directory.

    In the folder, right-click the folder and select "New File," type "hello."py," and click "OK."

    Now that you've made your adjustments, you can open the new file in the editor by clicking on it and then saving it.

    Then, in the Print dialog box, type "hello, world!"

    To execute the script, use CTRL+SHIFT+B. You may also use View > Toggle Command Palette and type Script: Run to execute a script.

    You can also use your terminal to run the python file by navigating to the file directory containing your hello.py file and running this command

    python hello.py

    How to edit and save files in atom

    File editing is rather simple. You can use your mouse and keyboard to navigate and edit the content of the page. A separate editing mode or key commands are not provided. Take a look at the list of Atom packages if you prefer editors that have modes or more advanced key commands. Many programs are available that mimic popular design elements.

    You may save a file by selecting File > Save from the menu bar or by pressing Ctrl+S. There are two ways to save the current material in your editor: by selecting File > Save As or using Ctrl+Shift+S. Finally, you can save all open files in Atom by selecting File > Save All.

    How to open directories in atom

    The majority of your time will be spent working on projects with numerous files, not just single files. Take advantage of the File > Open Folder menu option and select an appropriate folder from the drop-down menu. File > Add Project Folder or hitting Ctrl+Shift+A can also be used to add other directories to your current Atom window.

    The command line utility, atom, allows you to open unlimited number of directories by supplying their paths to it. The command atom./hopes./dreams, for example, can be used to simultaneously open the hopes and dreams directories.

    An automated Tree View will be displayed on the side of Atom if one or more directories are open.

    When you use the Tree View, it's a breeze to see the whole file and directory structure of your project. You can open, rename, and delete files, as well as create new ones, using this window.

    In order to toggle between concealing and showing it, use Ctrl+, use the tree-view: toggle command from the Menu Bar, or press Alt+ to bring focus to it. The A, M, and Delete keys can be used to add, move, or remove files and directories in the Tree view. It's also possible to access these choices by right-clicking on a file or folder in the Tree view, as well as copying or pasting its path into your clipboard.

    How is python executed?

    Unlike functional programming languages that used a single long list of instructions, Python uses code modules that may be switched out. Cpython is the default Python implementation. It is the most often used Python implementation.

    Python does not translate its code into a form that hardware can understand, known as machine code. As a result, it turns it into byte code. Python does have a compiler, but it doesn't compile to a machine language. CPUs are unable to decode the byte code (.pyc or.pyo). We'll run the bytes through Python's virtual machine interpreter.

    To convert a script into an executable, the Python source code follows these steps:

    First, the python compiler reads a python source code or instruction from the command line. It ensures proper formatting of the instruction by inspecting the grammar of each line. The translation is immediately interrupted if an error is found, and an error message is presented.

    Assuming there are no errors and the Python source code or instructions are properly formatted, the compiler proceeds to translate them into a form known as "Byte code," which is an intermediate language.

    The Python interpreter is invoked by executing bytes of code in the Python Virtual Machine (PVM). PVM is a Python virtual machine (PVM) that turns bytecode into machine code. If there is a problem with the interpretation, the conversion will be interrupted and an error notice will be displayed.

    Conclusion

    Congratulations for completing your first program. Beginners who want to learn Python can benefit greatly from this guide. To get the most out of this lesson, you may want to play around with the Print function a little more and discover more features that were not covered.

    High Density Interconnect PCB

    The printed circuit board is a type of plastic where electrical and electronic components lie, laminated and fixed. In modern days, there has been increasing in the complexity of electronic components and devices and this has also led to high demand for more complex PCBs that can make this achievable. This exclusive board that has been introduced in the market includes HDI, rigid-flex, Aluminium clad, buried and blind or even a blend of all the listed types.

    There is a list of so many PCB types that a designer can choose for any type of electronic project ranging from single layer PCB to other complex types like the multilayered PCBs. In general, the simplest type of PCB contains copper tracks and interconnection between the elements and components on one side of the board. These types of boards are classified as single-sided boards or one-layer side of boards. However, there are other types of boards that are complicated and will require complex methods to do their designs. These boards are probably double-layered or even multilayered.

    Multilayered boards are such complex boards that will require advanced technology for their manufacturing. This is where HDI boards come into play. HDI stands for High-Density Interconnect Boards. When addressing high density interconnect boards, we are focused on higher wiring density, the smaller vias, the thinner spaces and the higher pad density that accompany this type of board. This type of board has a lot of advantages over the typical circuit boards.

    Definition of HDI Boards

    PCBs are made up of components that are interconnected and fixed on them. The components are connected by wiring them on the board. The wiring is in form of tracks and traces. Some boards involve small low density of wiring capacity per unit area while others involve very high density wiring capacity per unit area. HID which is an abbreviation of the high density connect boards are boards that have a high density of the wiring capacity per the unit area when you compare with the normal PCBs.
    • These boards are very special as they come with finer lines, tiny vias and a high connection density of the pads than the one that is utilized in the normal boards.
    • A good HDI PCB should have one or all of the following;
    1. Blind and buried vias
    2. Micro vias
    3. Build-up lamination
    4. Considerations of high signal performance.
    • The HDI boards are very compact with small vias, micro-vias, spaces, pads and copper traces.

    How to manufacture HDI PCB?

    There are many online PCB companies that offer to manufacture High-Density PCBs. The one we highly recommend is PCBWay, china based PCB Manufacturing House. They offer the best quality product, within a specified time and have an excellent support team, ready to guide you throughout the process.
    • In order to manufacture HDI PCB, log in to the PCBWay official site.
    • Now click on the PCB Calculator, and at the top click on Advanced PCB, as shown in the below figure:
    • In the PCB Type, select the HDI option, I have encircled it in the above figure.
    • AS you can see for a single piece HDI PCB of size 100x100mm, the price is $333 and the shipping cost is $22 to USA.
    • HDI PCBs are highly cost PCBs and are thus used in industrial products.

    Variations in HDI PCBs.

    HDI PCBs use vias and laser-drilled microvias to connect components between different multilayers. The microvias are the most preferred to offer the connections because they are much smaller and very effective when it comes to space utilization.

    • We have at least five variations of the vias and microvias that can be used in the process of manufacturing the HDI PCBs.

    Stacked vias

    This can be either buried or blind vias which have a very important function of connecting circuits between different layers of the printed circuit board and in this case across three or more circuit layers as shown in the figure below;

    Stacked microvias

    They can either be blind or buried but they are conical in shape. They are vert small and they still do the function of connecting circuits between layers of the PCB as shown in the figure below.

    Staggered vias

    When we have vias of a certain PCB layer connected without overlapping, they actually form a staggered via as shown in the figure below.

    Staggered microvias

    They are conical in shape but they are connected without overlapping hence forming a staggering structure as shown in the figure below;

    Via in Pad

    This are vias that are connected to the pad where component is lied. They are very common in HDI PCBs.

    HDI structure

    There are mainly two structures that aren used in the manufacturing of the HDI;

    1. Buildup structure
    2. Any-layer structure

    Buildup structure

    This is the basic structure of the high-density interconnect PCB and uses the manual mechanical drilling as well as the laser drilling.

    • The first step is the lamination of the core, it is drilled by the use of the mechanical drilling, platting is done before it is finally filled.
    • Microvias are added to the core, followed by the drilling, filling and the whole process is repeated.
    • The N- buildup structure is made up of the formular N+C+N where N and C represents the number of the microvia in each side of the core and the core respectively.
    • The figures below shows an example of the N-buildup structures using the 1-buildup and the 2-Buildup

    Any layer interconnect technology

    This is an advanced technology that is used in the manufacturing of the HDI PCBs. The method is highly preserved for the high-level interconnection use since we can make connection of any of the two layers of the PCB without any form of restrictions. This means that any-layer connection has a lot of flexibility when it comes to doing these connections.

    • Because there is no any restriction on how the connections should be made, this leads to the saving of the board spacing to about 30%.
    • However, the cost of doing this board is higher and this is due to the complexity regarding the technology involved.
    • Unlike what was done in the buildup, here the micro-via is drilled first by the use of the laser drilling, followed by the repeated copper platting process, transfer and pressing of the inner image, and finally transferring of the outer layer imaging.
    • The figure below is a simple demonstration of the simple any-layer manufacturing process.
    • The drilling process is done by the use of the carbon dioxide laser drilling machine
    • The micro-via are made by the copper filling technology which will do the coper filling by the process known as the vertical continuous platting line and the horizontal plate line.

    Benefits of the HDI printed circuit boards.

    This technology has found great importance in the smartphone and the tablet manufacturing. Apart from that, they have become of great use in the laptops and desktop computers. The following id the great benefits of the HDI PCBs;

    1. Tighter designs; when we have a look at the high density interconnect PCB, we will realize that the board has very high intensity nature of circuit network connection. This high intensity implies that, the board takes literally less physical space. Utilization of design features such as blind and buried vias enables the designers to come up with more compact builds and this will make the HDI circuits very versatile.
    2. Reliability; the connectivity that is employed in the design of the HDI boards such as the use of the blind vias and the buried vias makes them more physical reliable. This is because such types of connection are less likely to get compromised.
    3. Lighter material; the material used is very light and cooler. The traditional and other PCBs use different variety of materials but the common one is the combination of copper, aluminium, fiber glass and other metals which might prove to be bulk. This is not the case with the HDI boards.
    4. Sharper signals; since these types of the PCB has more compact systems, then the outcome is that the signals will have a very short distance to travel hence avoiding much disturbances that comes in with the long-distance travel. This advantage makes the signal rich their destination undisturbed hence sharper performance of the board.
    5. Pocket friendly; four layers of the HDI boards are enough to perform all the functions of the standard PCB layer. The board having reduced size, it implies reduction in the coast too.
    6. Low power consumption; these types of boards have high number of transistors and also signals travel a very short distance. These features play a greater role in reduced power consumption in these types of boards.

    Common uses of the HDI boards.

    These types of boards have found many areas of use in the modern world of technology. Let us have a look at a few areas where the high-density interconnect boards are used;

    Healthcare

    Due to the smaller size of the HDI boars, medical designers have found great interest in this type of board. The medicals equipment are compatible with HDI because they are very small and can fit into them for example in implants and also in the imaging equipment. The equipment play a very significant role in the treatment of the ailments and therefore smaller chips that require less intervention have to be used. Let us take an example of a heart pacemaker that is implanted in the heart to regulate the speed of the heart bit. The pacemaker should be very tiny and therefore the HDI has provided boards that can solve the size of the pacemaker issue. another good example is the colonoscopy which is passed through the colon of a human to carry out the colon examination. It is evident through research that so many people avoid the colonoscopy examination due to the painful experience but the availability of the HDI technology has drastically reduced the size of the camera and improved the visual quality of the same camera which has made the colonoscopy process less painful hence triggering the increased number of people searching for the service.

    Aerospace and military.

    Military use strategic equipment such as the missile and some other defense communication devices. This equipment utilizes the HDI technology in their boards since it is the only efficient available method. there have been greater changes in the aerospace technology and HDI have always provide the need solution. Communication devices such as the wireless pones and trackers are becoming very tiny in size and this is due to the involvement of too many tiny layers of the HDI boards.

    Automotive industry.

    The car and other automotive manufacturers are falling in love with the HDI boards simply because with this type of board you are assured of greater discoveries and innovations. This boards allows the saving of more space in the vehicle and also have an increased performance of the same vehicle. To be specific, Tesla uses the HDI technology to run the electric car system where it helps in extending the battery life of the system. Other driver assistants such as cameras, tables etc fit on the dashboard without much problems.

    Digital devices.

    Let us make a comparison of todays digital devices like the smartphone with what we had 10 years ago and you will make note that there is a very big improvement in size, thickness and weight. This has been made possible by the use of the HDI boards in this area. Thinner and more compatible smartwatches are also a product of the HDI boards.

    Advantages of the HDI PCBs

    • Compact design; the strategic use of the burred and blind microvias makes the board compact and this leads to spacing.
    • High reliability; the preferred use of the stacked vias makes the board to have a super shield against the harsh environmental conditions.
    • Phenomenal versatility; this board is ideal where weight, size and the performance are of great consideration.
    • Cost effective; the functionality of a 6- layer standard PCB can be reduced to 4-layer HDI board without altering on its intended purpose.
    • Better signal integrity; vias and pads and blind technology is what is mostly used in the HDI. It also has very short compact trucks or traces and this reduces the chance of the signals being interfered by the external forces hence achieving of very high signal integrity.

    Mathematical Calculations in Ladder Logic

    Hi friends, today we are going to explore mathematical computations in ladder logic. Like in any programing language you should find logic and mathematic computations, here in PLC programming you often need to process the input data that is collected from reading analog devices like temperature, level, flow et cetera. Then you need to run some calculations on this data to derive some other variables for deciding to run or stop some device or even to determine analog output to output to analog device i.e. valve or actuators. In the following sections, we are going to explore the mathematical functions and their input operators and outputs as well. Then we will show how to utilize such functions in ladder logic with simple examples and as usual enjoy practicing them thanks to the PLC simulator.

    What are mathematical operations we have

    You may find some minor changes in the set of mathematical functions from brand to brand of PLC controllers. However, you will find in most of them are common in every controller. For example, you will find the basic mathematical functions are available like addition, subtraction, multiplication, division, negation by applying two’s complement, modulus, increment and decrement, absolute, maximum, and minimum. In addition, trigonometric functions like sine, cosine, tangent are included. Let us go over these functions and explore their operators and output and how they can be utilized in PLC ladder logic programming.

    Functions operators and outputs

    For all these functions, they have input operators and one or more returned outputs. Most of them have two inputs like addition, subtraction, multiplication, and division. While some have only one input parameter like negating function, maximum, and minimum. And they all have only one input. Table 1 lists all these functions and their input operators and output.

    Table 1: the functions’ input parameters and outputs

     

    Operator and Output values data types

    It is very important to be familiar with the type of data you are trying to process using these mathematical functions. So, simply you just need to know that the smallest size data type is a bool data type which is true or false or “1” or “0” and it uses only one single bit. Then character “char” or byte data type which is 8 bits while word data type is formed of 2 bytes or 16 bits and that is the word size in PLC. Also, there are doubleword data types that occupy 4 bytes or 32 bits. Moving to mathematical data types there are integer data types that can be stored in one word and the double integer “DINT” which can be stored in two words or 32 bit for holding numbers up to = 4294967296 for unsigned integers and half of that value for signed integers. Also, there is a real data type for holding numbers with floating-point. It needs 2 words or 32 bits and for a long real LREAL data type extends to 4 words or 64 bits.

    How to use the mathematical function in ladder logic

    In the TIA portal for siemens, there are two ways to add mathematical functions in a rung of ladder logic program. Figure 1 shows the first method which uses an empty box in the block interface and then you can select the function and its inputs and outputs parameters.

    Fig. 1: Adding an empty box for including math functions

    Figure 2 shows a list of functions from which you can choose the mathematical function you want to use.

    Fig. 2: A list of math functions to select

    Figure 3 shows another way to add a mathematical function by going to the basic instructions and then going over the math functions on the most right part of the window as shown and selecting the function you want to use.

    Fig. 3: The second way to add a mathematical function

    Figure 4 shows how to define the input and output parameters of the used mathematical function. For example, in figure two input parameters are defined as the function’s input operators which are literal number five and variable “x” which is predefined as an integer in the variable declaration section in the middle top section. Also, the Variable sum is defined as an integer. So the add function will add X to 5 and assign the result to variable Sum.

    Fig. 4: Defining function parameters and outputs

     

    Mathematical function ladder example

    In this example, we are going to show how mathematical functions can be used in a ladder logic program and also show the simulation results. As in fig. 5, we design a simple calculator that uses the mathematical functions and each function can be triggered by a switch on a contact that is connected in series to the enable line of the function box.

     

    Addition function math example

    Figure 5 shows an additional example in ladder logic. It shows two operators A and B of integer data types. The variable A is located at address MW2 and variable B is located at address MW4 while the result is stored in variable RES which is located at address MW6. All of these variables are of type integer and size one word or 32 bits. The figure show simulation results on the PLC simulator and shows the RES variable holds summation of A and B.

    Fig. 5: Addition function example

     

    Subtraction math function example

    Figure 6 shows a subtraction example in ladder logic. It shows two operators A and B of integer data types. The variable A is located at address MW2 and variable B is located at address MW4 while the result is stored in variable RES which is located at address MW6. All of these variables are of type integer and size one word or 32 bits. The figure shows simulation results before triggering the subtraction function on the PLC simulator. So, the RES variable holds zero before enabling the function.

    Fig. 6: Subtraction function example not triggered

    Figure 7 shows the simulation results after enabling the subtraction by switch or the “SUB” command contact. The Res variable now reflects the results of subtraction.

    Fig. 7: Subtraction function example in ladder logic programming

    Multiplication math example

    Similarly, Fig. 8 shows an example for performing the multiplication process. First, the “MUL” is selected and two input operators of multiplications are given and output. The simulation result shows the RES variable holds the result of multiplication of the input operators.

    Fig. 8: Multiplication function example in ladder logic programming

       

    Division function example

    Similarly, Fig. 9 shows an example for performing the Division process. The “DIV” is selected as an instruction to be executed and two input operators of division are provided and output. The simulation result shows the RES variable holds the result of the division of the input operators.

    Fig. 9: Division function example after triggering

     

    MOD function example

    Similarly, Fig. 10 shows an example for performing the MOD function process. The MOD function determines the remainder of the division process, in this example we are dividing 25 by 10 which gives 2, and the remainder of 5. “MOD” function firstly is selected as an instruction to be executed and two input operators of MOD function are provided and output. The simulation result shows the RES variable holds the remainder of the division of the input operators.

    Fig. 10: MOD function example in ladder logic programming

    General calculation

    Now, one may ask how I need to do the calculation in form of an equation that has many processes? This is a very smart question! Many programming tools support this, fortunately. For example, in Siemens, there is a function called “calculate” which can take two inputs and perform mathematical equations on these two variables and return the result in an output variable as shown in Fig. 11. It shows the function which is called “CALCULATE” and it has two inputs “IN1” and “IN2” and one output “OUT”. I triggered the help to show you an example that states OUT can be determined from the equation in inputs and also shows all functions that can be used including logic and mathematical functions. So we can use this function, in general, to act like any mathematical or logical function separately or by combining two or more functions in one equation.

    Fig. 11: Using equations in ladder logic

     

    Example of performing equation in Ladder logic

    As you can see in the given example in fig. 12, the output variable can be determined based on multiplying the summation and subtraction of the input parameters as an equation. The result of the program is validated with a calculator.

    Fig. 12: Using equations in ladder logic

    Combining mathematical function

    There is another way to perform combine many mathematical functions as shown in fig. 13. As you can notice, the output variable “out” can be determined by multiplying the summation of input variables “in1” and “in2” by “in1”.

    Fig. 13: Combination mathematical function in ladder logic

    Negate function

    Negate function is one example of a single operator function in ladder logic programming. it reverses the sign of the input variable. For instance, fig. 14 shows an example of converting the sign of input variables “in1” to show the negative value reflected in the result in “res”.

    Fig. 14: Single operator mathematical function in ladder logic programming

    Absolute function

    Figure 15 shows an example of getting the absolute of variable “RES” and saving it in variable “b”.

    Fig. 15: Absolute function in ladder logic

    Minimum and maximum in ladder logic

    Getting minimum and maximum is one of the most frequently used in the mathematical operation. Figure 16 shows an example for getting a minimum of two input variables “in1” and “in2” while fig. 17 shows an instance of getting the maximum of two input variables as well.

    Fig. 16: Getting a minimum of two input variables in ladder logic programming

    Fig. 17: Getting a maximum of two input variables in ladder logic programming

     

    Decrement and increment in ladder logic

    One of the most commonly used functions is incrementing and decrementing one variable. For example, the counter variable all the time gets incremented and decremented through the logic of the program. Figure 18 shows an example for decrementing and incrementing an input variable. First, the initial value of the variable was 15, and then after incrementing it. The variable became 6 and then by applying decrementing operation it return to 5. It is very crucial to notice that, the user variable in increment and decrement operation works as input and output at the same time. Therefore, you can see in the increment and decrement blocks, it is defined as input-output “input”.

    Fig. 18: Increment and decrement operation in ladder logic

    Limiting variable in ladder logic

    Now, let us use one of the very useful functions to secure a variable at specific limits. Figure 19 shows an example of limiting the value of one variable “in” to be sited between the specified minimum and maximum values. In that very example, the input variable has had a value of 5 and because it exceeds the set limit of maximum it is set to 4 which is the maximum allowed value to the variable thanks to the limit function.

    Fig. 19: limiting variable in ladder logic programming

    Trigonometric functions in ladder logic

    Also, trigonometric functions like sine and cosine and other related functions can be executed in ladder logic. Figure 20 shows one example of how to use a sine function in ladder logic. The first rung in the example shows how to convert the degree into rad thanks to mathematical functions multiply and division. Ultimately, the sin function block is used to determine the sine of the given angle in rad.

    Fig. 20: Triogonometrical function in ladder logic programming

     

    What’s next

    I am so happy that you be that patient to reach these points of tutorial and you know got familiar with most of the mathematical functions and how to use them flexibly through your program. The next round will go with the comparison operators and more deeply in mathematical logic flow using operators such as >,<,>=,<=, and ==. So please be ready for our next session of that ladder logic tutorial.

    How to Install Python Software?

    The first step to becoming a Python coder is to install or update Python on your computer. Python can be installed in a variety of ways, including through the official Python.org distribution, a software package manager, the IoT (Internet of Things) and scientific computing, just to name a few.

    In this article, we'll be using official Python distributions, which are often the best option for beginners.

    What will you learn from this?

    • How to check if you have the right Python release installed on your computer before proceeding.
    • Installation of Python3 on Windows pc and Linux machine.
    • How to use Python on the web with the help of online interpreters.

    INSTALLING REQUIRED PYTHON ENVIRONMENTS

    Installing the most recent versions of Python and the packages you'll need to experiment with is a good place to start when learning Python. To create an environment, you need a certain Python version, as well as the necessary packages. Consequently, separate environments are required if you wish to create or utilize apps that have varied Python or package version needs.

    Python environment - what is it?

    Python's virtual environment is a valuable tool for managing dependencies and separating projects. It's possible to install Python site packages (third-party libraries) in a specific project directory rather than the entire system Python.

    Which are the package and environment managers Available?

    • Pip: With a virtual environment, you may use pip, a Python package manager, which stands for "Pip Installs Packages”. This is a tool for creating isolated environments.
    • Conda: Conda is an open-source package management and environment management system that operates on Windows, Mac OS X, and Linux. Installing, running, and updating packages and their dependencies is a breeze thanks to Conda. You can quickly build, save, load and swap environments on your own computer using Conda. Software for any language may be packaged and distributed using this tool.

    In windows

    On Windows, there are three installation options:

    • Using Microsoft store.
    • Using the available complete installer.
    • Windows subsystem for Linux implementation.

    You'll learn how to check the current release of Python installed on your Windows machine in this section. You'll also discover which of the three installation options is best for you.

    Installation

    Step 1: Install Python based on your choice of version.

    Python 2 and Python 3 are available, each with its syntax and way of doing things.

    Here we are going to download python 3 for this course.

    Step 2: Download an executable installation file for Python.

    Open on your browser and head to the python.org website. On this page click on downloads. Here you can find the latest version of python. Choose the version you require and click Download. For this example, we go with Python 3.10.2.

    When you select download, a list of available executable installers with varied operating system requirements will appear. Select the installer that best suits your system's operating system and download it. Let's say we go with the Windows installer (64 bits).

    Step 3: Run the Installer Script

    If the Python 3.10.2 Windows 64-bit installation was downloaded, run the installation program by double clicking it. Make sure both checkboxes at the bottom are selected before clicking Install New.

    Now installation process begins when you click the Install Now button. Wait for a few minutes for installation process to finish.

    you should see the screen below if the installation is complete. Now you have python installed in your computer.

    Step 4: On Windows, check to see if Python is installed.

    To see if Python has been installed successfully on your system. Observe the instructions.

    • Go to the windows search box on the bottom left corner of your display and write "cmd" and click enter. A command prompt window in black will open and this is where you write your commands for execution.
    • Enter 'python --version' into the prompt and press enter.
    • If python is successfully installed on your windows, the version of python that you have installed will be displayed.

    In Linux

    When installing python in Linux distros, there are two ways involved:

    • Using the Linux os`s package manager: On most Linux distributions, this is the most popular installation technique. It entails using the command line to execute a command.
    • Or building python from source code: Using a package manager is easier than using this method. It requires performing a set of instructions from the command line as well as verifying that you have all of the essential dependencies to compile the Python source code.

    You'll find out how to know if your Linux computer has a current version of Python in this section and which of the two installation techniques should you choose?

    How to check the python version?

    Many Linux versions include Python, but it is unlikely to be the most recent update, and it may even be Python 2 rather than Python 3. Try the following command in a terminal window:

    $ python –version

    If you have Python installed on your computer, this command should return a version number.

    If your current Python version isn't the most recent Python 3 version available, you'll want to upgrade.

    Installation

    Step 1: Installing Python requires first downloading and installing the necessary development packages

    A new version of Debian has been released; therefore, we need to update our old version to the new one.

    Open the terminal in your Linux machine. Then run “apt update” in your Linux terminal to update the system before you begin installing python. Then, run "apt-get upgrade" in your terminal to upgrade the system.

    then, run " apt install build-essential zlib1g-dev \libncurses5-dev libgdbm-dev libnss3-dev \libssl-dev libreadline-dev libffi-dev curl" to install the build essentials.

    Step 2: Download the most recent version

    Navigate to your browser in python.org and click on downloads. You will see the latest version of python with a download button, but this is the windows version, instead, navigate to the Linux/UNIX link below it to download the Linux version.

    Download the most recent version of Python3 from the official Python website.

    You will receive an archive file ("tarball") containing Python's source code when the download is complete.

    Step 3: Unzip the tarball folder to a convenient location.

    A tar.gz file is a collection of compressed files that may be downloaded in order to conserve space and bandwidth. The tarball, another name for the.tar file, is a container for other files that may be carried about on a flash drive. Because of the extension, gzip is the most extensively used compression application in use. These files can be unzipped in the same way as a standard zipped file:

    Run “tar –xvzf a.tar.gz” in the terminal to unzip.

    Step 4: The downloaded script must be configured.

    Type cd Python-3.*. /configure in your terminal once you've unzipped the Python package and press enter.

    Step 5: Begin the build procedure

    Use this command below if you need to install an updated version alongside the old version in case you don`t want to delete the old one:

    $ sudo make install

    Step 6: Verify that the installation is working properly.

    Open your terminal and type command below and click enter.

    python --version

    Python3 has been successfully installed once the output says Python 3.x.

    Conclusion

    Congratulations! For your system, now you have access to the most recent update of Python. Your Python adventure is just getting started.

    Up Down Counter using Arduino & 7-Segment Display

    Hello geeks, welcome to our new project. In this project, we are going to make a very interesting project which is an Up-Down counter. Most of us who have an electronics background or studied digital electronics must know the counter. Counter is a simple device which counts numbers. As per the digital electronics, there are two types of counter, the Up counter which counts in increasing order and another is Down counter which counts in decreasing order. And every counter has a reset limit, on which the counter resets to its initial value and starts the counting again. The limit of every counter depends on the bits of counter. For example, we have a 8 bit Up counter which means it will count upto 255 and afterwards it will reset and will start again counting from zero.

    Where To Buy?
    No.ComponentsDistributorLink To Buy
    17-Segment DisplayAmazonBuy Now
    2Arduino UnoAmazonBuy Now

    Software to install

    In this project, we will need two softwares first is the Arduino IDE which is used for Arduino programming. As we are going to make this project in simulation, we will use Proteus simulation software. Proteus is a simulation software for electronics projects. In this software, we can run the real time simulation of electronics circuits and debug them without damaging any real components.

    And it is a good practice to make any circuit in the simulation first if we do that for the first time.

    And Proteus has a very large database for electronics components but it lacks some new component libraries, for that we have to install some libraries for those components. In this, we have to install a library for the Arduino UNO module.

    We should first download the Arduino UNO library.

    Components required

    We will need the following components for this project

    • Arduino UNO
    • 7 Segment LED display
    • Two push buttons
    • 2 Resistors

    Components details

    Arduino UNO

    • Arduino UNO is an open source development board developed by Arduino.
    • It uses the ATmega328 microcontroller made by ATMEL.
    • ATmega328 has an 8 bit RISC based processor core with 32Kb flash memory.
    • Arduino UNO has 14 digital input/output pins and 6 analog input/output pins.
    • It has 1 UART, 1 SPI and 1 I2C communication peripheral on board.
    • It has a 10 bit ADC which can give value from 0 to 1023.
    • Operating voltage of ATmega IC is 5 volts but on the Arduino board, using the DC power jack, we can connect upto 9-12 voltage power supply.
    • We can power Arduino UNO using the DC power jack or Vin on the Arduino UNO module.
    • Here, we used the Arduino UNO as the main controller which works as a counter here and displays the same on the 7 segment LED display.

    7 Segment LED display

    • It is an LED display module, in which there are seven LEDs arranged in the rectangular form on which we can display single digit numbers from 0-9 and some alphabets as well.
    • It has two types, one is common ground and another is common Vcc.
    • There are 7 different pins for each LEDs and one common pin, this pin can be common ground or common Vcc depending upon type of the display.
    • The pins on the display are noted as a,b,c,d,e,f,g.
    • Common ground is also known as Common cathode, and common Vcc is also known as Common anode .
    • In Common cathode type display, the LEDs will glow when LEDs pins are connected to logic HIGH.
    • In Common anode type display, the LEDs will glow when the LEDs pins are connected to logic LOW.
    • As they are simple LEDs so while using them in the circuit, it is mandatory to use some protection resistors with each of them if we are using Common ground type display and single resistor with the Common Vcc pin if we are using the Common Vcc type display.
    • For the counter, we will follow the truth table of display for showing the numbers.

    Push buttons

    • In this we have used a simple momentary push button for setting the counter in UP counting or in DOWN counting.
    • There are two pins in the push button.
    • As we will use the push buttons in active low condition which means one side will be connected to ground and other terminal will be connected to the Arduino.
    • So when we press the push button, it will close the circuit and set the pin.
    • While using any push button, it is mandatory to use a pull-up or pull-down resistor with it, otherwise there will be some glitches in the operation.
    • Because when the button is released, the circuit will be open and if there is no pull-up or pull-down connected to the other pin of the push button, then that pin will be in floating state and will give any random voltage, which will create an issue.
    • Here, in this project we have used the pull-up resistor so that when the push button is released, the pin state will be in logic HIGH state.

    Project overview

    As we know counters are simple electronic circuits which count some values and after reaching the maximum value they will reset. In this project, we will make an Up-Down counter which means our counter will count from 0-9 and again after 9-0.

    We will use the 7 segment display for showing the counter values. In this project, we have used the common ground type of LED display. And two push buttons to start the counter in up counting or in down counting. When we press the UP push button, then the Arduino will activate the pins as per the up counting and LED will display numbers from 0-9 and when we press the DOWN push button then the Arduino will activate the pin as per the down counting and LED will display numbers from 9-0.

    To control the LEDs, Arduino will set the pins as HIGH and LOW as per the truth table for the common ground display.

    Arduino will set the pins and LED will display the numbers.

    Circuit diagram and working

    Now we know the working of our counter so let’s make the circuit for the same:

    • Open the new project in the Proteus and import all the required components in the workspace.
    • Now let’s connect the push buttons with Arduino, for the push button we will use Arduino UNO’s digital pins D11 and D12.
    • Connect the one side of the push buttons with the Vcc and another side with the Arduino UNO and on that side we will connect the pull-down resistors.
    • Connect the pull down resistors with the Ground.
    • Now, connect the pins of the 7 segment display with the Arduino UNO.
    • Connect the pins of the LED display in the same order as A-2, B-3, C-4, D-6, E-7, F-8, G-9 and DP -5. Otherwise it will show the wrong data on the display.

    Arduino Code for Up-Down counter

    Now we will start writing the code of the Up-Down counter. The code of this project will be divided into three major parts. In the first part, we will declare all the required variables and pins. In the second part, we will set the modes of pins and set the initial states to pins and do the required configuration if needed and the last part we will write our main functionality of our project which we want to run continually.

    • So let’s declare all the required variables. First of all, declare the variables for pins of the seven segment display and Up counter push button and down counter push button.
    • Now declare all the required variables which we will use in this code.
    • Now we declared all the required variables and pins so let’s start with the void setup function.

    Void setup()

    • It is one of the most important functions in the Arduino code structure. Without this, our code will not compile successfully and will show the error.
    • In this, we will set the pin mode of each pin and set them to their initial values.
    • This function only runs once every time when we restart the code so that we will write the part of code which we want to run only
    • We will set the pinmode of seven segment LEDs to output mode as we want to control the LEDs from them.
    • And set the pinmode of push buttons as input as we want to read their state in the application.
    • For debugging purposes initialise the serial monitor also.
    • After this, we will write the void loop function.

    Void loop()

    • This is also one of the most important functions as per the structure of the Arduino code, we can not write the code without using this function.
    • In this function, we will write the code which we want to run in the continuous loop, so we will write our main application code in this section.
    • As per the application of our code first of all, we will read the Up and Down counter push button states and when the state changes we will trigger the counter.
    • Write the condition for the Up counter button, when the button is pressed then the state of the button changes and we will check the state of the push button. If it is HIGH then we will start incrementing the counter variable and using the “changeNumber()”, we will display the numbers on the seven segment LED display.
    • Similarly, for the down counter push button, when the push button is pressed then the state changes and when the state of the button is high then we will start decrementing the counter variable and display the number on the seven segment display using the “changeNumber()” function

    Void changeNumber(int buttonpress)

    • This is a user defined function.
    • We will use this function to display the number on the seven segment LED display.
    • This function will set the state of the LED’s pins as per the number we want to display.
    • It takes an argument as the number and with the help of switch-case, it will set the state of pins as per respective number.
    • The state of pins is decided by the truth table of the seven segment LED display mentioned in the above image of the truth table.

    Result and test

    After the circuit and the coding part, we are all set to run the simulation:

    • To run the simulation, we have to add the hex file of our application code.
    • We have to generate the hex file from the Arduino IDE.
    • To generate the hex file , goto “Sketch >> Export compiled binary” after that it will compile our application code and the hex file will be generated and will be saved in the same folder of the project.
    • Now include that to the Arduino UNO module in the simulation.
    • To add the hex file, click on the Arduino UNO module, then a window will be opened, from there browse to the location of the hex file and add that.
    • Now run the simulation.
    • At the start the LED display will show ‘0’.
    • So, when we press the Up push button, then the counter variable will be incremented by one on every press and when we push the Down push button, then the counter variable will be decremented by one on every push and the same will be displayed on the Seven segment LED display.

    Conclusion

    I hope we have covered all the points related to this project. I think it will be a useful project for learning purposes and gives an understanding about working of counters. Please let us know in the comment section if you have faced any issues while making this project.

    Thanks for reading this article. See you in the next project.

    Introduction to Python

    Greetings! I sincerely hope everything is going well for you all. In this course, we are going to learn step-by-step how to program in Python. The course covers all you need to know about the Python language, from installation to advanced topics. In addition, we'll talk about Python career jobs and do a few projects to strengthen your skills. According to my research, Python is among the top programming languages in use today. (I mean, no offense). Since I am also a Python programmer, I may sound a little prejudiced, but I can certainly declare that I am a huge fan of the language. This tutorial series is meant for absolute beginners with no prior knowledge of python programming, it is also of great help for experienced python programmers looking to brush up on their knowledge. Anyway, let’s start by answering a few questions:

    What is Python?

    Python is a high-level scripting language for system administration, text processing, and web tasks. Its core language is short and easy to learn, while modules can be added to do a virtually infinite number of functions. It is a genuine object-oriented programming language that runs on a wide range of systems. Python was born out of a desire to build a computer language that was both easy to learn for beginners and powerful enough for advanced users. Python's small, crisp syntax reflects this background, as does the thoroughness with which notions are implemented, without removing the flexibility to program in a more traditional approach. As a result, Python is a fantastic first programming language that provides all of the power and advanced capabilities that users will require in the future. Most experienced programmers claim that Python has restored the fun they normally had during programming, suggesting that van Rossum's inspiration is adequately conveyed in the language itself.

    Why Python?

    Even those, who aren't computer programmers, have found themselves using it, to perform mundane tasks like raising money because of its relatively low learning curve.

    Readability and maintainability

    Building a system that is easy to maintain and update requires careful consideration of the quality of the program code. Because of the language's syntactic rules, you may express yourself in Python without writing any more code. With Python, you may use English phrases instead of punctuation, which makes it easier to understand than other computer languages. You don't have to write any more code when using Python to create custom apps. If the code is well-structured, it will make it easier to keep and improve the product.

    Compatibility

    Code written in this programming language may be executed on a variety of systems and tools thanks to interpreters for this language. When it comes to creating dynamic web pages, Python is also an interpreted programming language. '" There's no need to recompile the application to operate on many operating systems. As a result, changing the code doesn't require recompilation. You don't need to recompile the updated application code to see how the changes affect it. Code updates may be made more rapidly and without increasing development time by using this feature.

    Robust Standard Library

    Python outweighs other languages because of its vast and robust standard library. You can select from a wide choice of modules in the standard library to meet your specific requirements. If you're building web apps, dealing with operating system interfaces, or working with internet protocols, you can make use of specific packages. The documentation for the Python Standard Library can also help you learn about different modules.

    A lot of customizable tools

    As an open-source coding language, Python can lower software development costs significantly. Some of the Python modules, libraries, and development tools, all of which are open-source and free, may help you get things done faster. Open-source Python development tools are also available, so you may tailor your project to your exact needs. Flask, Pyramid, and Cherrypy are some of the best Python frameworks for web development.

    Make Complex Software Development Easier

    Python may be used to build both desktop and web-based applications. Python may also be used to create complex scientific and numerical applications. Easy-to-use Python capabilities make it possible to perform data analysis and visualizations. Data analysis tools can be used to construct custom big data solutions without requiring additional effort or time. You may make your collected data more visually attractive and useful by utilizing its data visualization tools and APIs. Many Python programmers also use Python for AI and NLP jobs.

    Python for Cloud Computing

    This programming language is used for cloud computing, web and software development, as well as task automation and data analysis.

    Since everything is stored in the cloud, you may access it at any time and from anywhere. Web-based software may be used without any installation, an application can be hosted online, and a remote file storage and database system built using cloud computing can be set up. For that purpose, we have different modules like raspberry pi and ESP32 or ESP8266 boards which use python.

    The ESP32 is the latest sibling of the ESP8266, which is a microcontroller. For a nominal additional fee, it boosts the device's power and capabilities while also including Bluetooth. The M5 Stack is one of the greatest iterations of these boards. Piezo speakers, batteries, a card reader, and a color screen are all included in this device.

    Is python supported?

    Python has a big and active community of developers that respond to concerns and build new features at a pace that many commercial software developers would consider exceptional (if not downright shocking). A source-control system is used by Python programmers to coordinate their work remotely. The PEP (Python Enhancement Proposal) procedure must be followed and must be accompanied by improvements to Python's sophisticated regression testing infrastructure for any changes. A far cry from the early days of Python, when an email to the author would suffice, altering Python nowadays is about as complicated as upgrading commercial software. This is a good thing given Python's present vast user base.

    What are the technical strengths of python?

    • Python is object-Oriented. Python was designed from the bottom up to be an object-oriented language. Polymorphism, operator overloading, and multiple inheritances are all supported by its class model, but Python's straightforward syntax and type make OOP a breeze to implement. Even if you don't grasp the terminology, you'll find it far easier to learn with Python than with any other OOP language. Later in the course, we'll get to understand this.
    • The language is free to use. Python may be used and distributed without cost. You may get the full Python system's source code for free from the Internet, just like you can with other open-source software like TCL, Perl, Linux, and Apache. If you want to use it in your products, you can do so without fear of violating copyright laws. Python's source code can even be sold if you want to.
    • Python is portable. In addition to being written in ANSI C (American National Standards Institute), Python's standard implementation operates on nearly every major operating system now in use. Python, for example, can run on everything from a PDA to a supercomputer today.
    • Python is easy to use. Python programs may be run by just typing in the code and pressing enter. Unlike in languages like C or C++, there are no intermediary phases of compilation and linking. In many circumstances, you may see the consequence of a program modification as quickly as you type it in Python, which provides for an engaging programming experience and a speedy turnaround following program changes.
    • It is mixable. There are several ways in which Python applications can be "glued" together with other languages. Python's C API, for example, allows C applications to be called by Python programs. As a result, you can tailor the Python system to your own needs, and you can run Python applications in any environment or system.

    What are the weaknesses of python?

    • Slow Speed. It is a combination of interpreted and dynamically-typed languages. The execution of line by line is generally sluggish. This slowness may be attributed to Python's dynamic nature, which is also to blame for the language's inability to execute code quickly. Since performance isn't a high priority, Python isn't used in projects.
    • It is not memory efficient. Because of this, Python must make some compromises to keep things simple for programmers. When programming with Python, you'll need a lot of RAM. This could be a problem when you're writing programs, especially if memory efficiency is important.
    • It is weak in mobile computing. When it comes to server-side programming, Python is the most often used language. Python isn't used in client-side or mobile apps for the reasons listed below. When compared to other languages, Python is a poor memory manager and a slow processor.
    • Database access. Python is a breeze to learn and use. Despite this, when we're using the database, it falls behind. While JDBC and ODBC are well-known technologies, Python's database access layer remains basic. Because of this, Python isn't used by big businesses that need to work with complicated old data smoothly.
    • Errors in the code. At any point in time, the data type of a Python variable can change. If an integer number is saved in a variable that is later transformed to a string, there is a risk of runtime issues. The upshot is that Python programmers must properly test their software.

    What kinds of jobs are there in Python?

    1. Python Developer. For someone who knows Python, being a Python developer is the quickest path to employment. One can work by using Python to
    • Create web applications
    • Enhance the data algorithms
    • Analyze and solve data-related issues
    • Adopting measures to safeguard personal and financial information
    • Useful, testable, and efficient code writing
    1. Product manager. Product managers are in charge of discovering new user features, identifying market gaps, and making a case for why specific products should be developed. Many firms are increasingly looking for product managers who are fluent in Python because of the importance of data in their job.
    2. Data analyst. When it comes to sorting through large amounts of data, utilizing Python modules like SciPy and Pandas has proven to be a popular method.
    3. Someone has to teach Python, right? Someone who knows Python may immediately think of teaching computer science, but it is far from the only teaching opportunity open to those with this skill set. Python tutors are in high demand at nearly every institution, coding boot camp, and online coaching platform.

    How much do jobs as a Python programmer pay?

    Now, let's have a look at How to install Python Environment:

    HOW TO INSTALL PYTHON ENVIRONMENT

    In windows

    Python is installed on Windows in a few simple procedures.

    Step 1: Install Python based on your choice of version.

    Python 2 and Python 3 are available, each with its syntax and way of doing things.

    Here we are going to download python 3 for this course.

    Step 2: Download an executable installation file for Python.

    Use browser to Navigate to the Download for Windows area of the official Python website.

    Choose the version you require and click Download. For example, I go with Python 3.9.1.

    When you select download, a list of available executable installers with varied operating system requirements will appear. Select the installer that best suits your system's operating system and download it. Let's say we go with the Windows installer (64 bits).

    Step 3: Run the Installer Script

    The Python 3.9.1 Windows 64-bit installation was downloaded.

    Run the installation program. Make sure both checkboxes at the bottom are selected before clicking Install New.

    Now installation process begins when you click the Install Now button.

    A few minutes after starting the installation process, you should see the screen below.

    Step 4: On Windows, check to see if Python is installed.

    To see if Python has been installed successfully on your system. Observe the instructions.

    • Go to the command prompt and type "cmd."
    • Enter 'python' into the prompt.
    • If python is successfully installed on your windows, the version of python that you have installed will be displayed.

    In Linux

    Step 1: Installing Python requires first downloading and installing the necessary development packages.

    A new version of Debian has been released.

    Run "apt-get upgrade" in your terminal.

    then, "libssl-dev libreadline-dev libffi-dev curl"

    Step 2: Download the most recent version.

    Python has several versions that are available on their website.

    Download the most recent version of Python3 from the official Python website. You will receive a.tar.xz archive file (a "py") containing Python's source code when the download is complete.

    Step 3: Unzip the py folder to a convenient location.

    To extract the file, either use an extractor program or the Linux tar command.

    Step 4: The downloaded script must be configured.

    Type cd Python-3.*. /configure in your terminal once you've unzipped the Python package and run it

    Step 5: Begin the build procedure

    Use this command below if you want to install the new version alongside the old version in case you don`t want to delete it:

    $ sudo make install

    Step 6: Verify that the installation is working properly.

    To test it, type the following command into your terminal:

    python3 --version

    Python 3 has been successfully installed once the output says Python 3.x.

    Conclusion

    Congratulations! You've just completed the basics of Python, now you know its strengths and where it falls short, as well as what kinds of employment you may expect to be able to land as a python programmer. Let’s meet in the next chapter as we begin coding.

    Introduction to Raspberry Pi

    Hello friends, I hope you all are doing great. Today, I am going to start a new tutorial series on Raspberry Pi 4. It's our first lecture today, so I will explain the basics of Raspberry Pi boards.

    In this tutorial series, I will teach you each and everything about Raspberry Pi and its programming. I have designed this guide for beginners, so we will start from the very basics and will slowly move toward complex concepts. Python programming language is used in Raspberry Pi boards, so we will study Python as well.

    So, we will learn both programming and hardware circuit designing in this tutorial series. Let's first have a look at What is Raspberry Pi?

    What is Raspberry Pi?

    Raspberry Pi is a series of Single Board Computer, developed by the Raspberry Pi Foundation in England, to teach computer science in schools. When you buy the Raspberry Pi board, you only get the board. There are other components i.e. power adapter, HDMI cable and memory card etc. required to run the Raspberry Pi board. After these basic components are provided, the operating system must be installed on the Micro SD card.

    A Single board computer(such as Raspberry Pi) is a computer that contains basic units i.e. ram memory, input-output unit, microprocessor but unlike normal computers, it is not possible to expand the hardware features. For example, it does not contain a SLOT to increase the RAM memory from 1GB to 2GB. Since Raspberry Pi is designed as a single board and does not have a structure open to development for extra hardware to be installed on it, its cost is quite low. Single-board computers are not used as personal computers but are used in engineering projects where heavy computing is required i.e. robotics, IoT, image processing etc.

    Components i.e. memory, video card, network card, sound card etc. are usually integrated on-board in a single-board computer. The operating system is installed on the Micro SD card. Pictured is the Dyna-micro MMD1, the first single-board computer produced in 1976.

    Figure 1: DYNA-MICRO MMD1- First single board

    There are many alternatives to Raspberry Pi i.e. Orange Pi, Banana Pi, Asus Tinker Board etc. When examined in terms of features, Raspberry Pi boards are preferred, thanks to the community support behind them, even if the hardware features of the alternatives are better.

    The official operating system of the Raspberry Pi card is Raspberry Pi OS, but other operating systems can also be installed on Raspberry Pi boards.

    Raspberry Pi 4 is the latest version and it allows the use of both 32-bit and 64-bit operating systems.

    Figure 2: Raspberry pi os versions

    Figure 3: Recommended 3rd party operating systems for raspberry pi

    There is a processor with ARM architecture on the Raspberry Pi. The processor is based on the RISC(reduced instruction set computer) architecture developed by Advanced RISC Machines(ARM).

    Figure 4: Raspberry pi 4 -4gb version

    ARM-based processors are used in mobile devices, handheld terminals, mobile phones, media players, calculators, disk drives, VCDs, DVDs, cameras and even cars. To give a percentage, 75% of 32-bit processors in the world are ARM-based processors. The reason why this architecture is so preferred is the power saving, low cost and performance features of ARM-based processors.

    Figure 5: The processor used in the Raspberry pi4 version is a BCM2711-ARm based processor.

    The table shows the hardware comparison of all raspberry pi boards ever produced.

    When you buy the Raspberry Pi card, a power adapter and Micro SD card are needed to run the card and load the operating system into it. For Raspberry Pi 3 and previous versions, the power adapter must be micro-USB compatible and at least 2 Amps and 5 Volts. For Raspberry Pi 4 and above versions, the power adapter must be USB-Type C and at least 2.5 Amps.

    Figure 7: Raspberry Pi 4 power adapter

    Figure 8: While the USB-Type C connection shown on the left is used for Raspberry Pi 4, the micro USB connection is used for previous version cards.

    Figure 9A microSD card is needed to install an operating system. It is recommended to use a Class 10 type card.

    HDMI cable is used to interface card, monitor/display, keyboard, mouse etc. with Raspberry Pi 3 and previous versions, while micro HDMI cable is required for Raspberry Pi 4.

    Raspberry Pi 4 Applications

    Raspberry Pi 4 has a vast range of applications because of its portability, ability to produce integrated solutions, ram memory, internet connection, processor speed etc. Few applications of Raspberry Pi 4:

    • IoT Products.
    • Cryptocurrency Mining.
    • Printing on Servers.
    • Raspberry Pi Media Center.
    • Retro gaming station.
    • Control & Robotics.
    • Animations i.e. stop-motion camera, time-lapse video etc.
    • Build a Raspberry Pi web server.
    • Home automation & Security Systems.
    • Network monitoring system.
    • Stream live video on youtube.
    • Learn how to code( Python, C++, Code blocks etc.)
    • Bluetooth and Wifi Projects.
    • AI Projects.

    Raspberry Pi OS Installation

    Installing an operating system on the Raspberry Pi card to use it required. A minimum 8GB Micro SD card is required to install the Raspberry Pi OS operating system. https://www.raspberrypi.com/software/operating-systems/

    You can install the 32-bit or 64-bit raspbian os operating system on the Raspberry pi card. Especially if you have the Raspberry pi 4 8GB version, it would be appropriate to choose 64 bit OS. Because with a 32-bit operating system, you can only use up to 4GB of the RAM memory of the raspberry pi.

    Figure 10: Preferable operating systems for raspberry pi 4

    In Raspberry Pi OS installation, the image file (iso extension) must be downloaded to the computer and installed on the micro SD card via Win32 Disk Imager or a program that does the same job. In this step, we will examine how to upload the image file to the microSD card.

    A-Raspbian os installation steps with Raspberry pi imager

    The first step is to download the appropriate version of the imager application for our operating system to the PC.

    https://www.raspberrypi.com/software/ When we log in to the address, the imager application can be downloaded by clicking the "download for windows" button.

    https://downloads.raspberrypi.org/imager/imager_latest.exe

    Installation Steps:
    • When the imager application is run, the screen will appear as follows.

    Figure 11: Raspberry pi imager application screen

    In the first step, the operating system selection button is clicked. Select the operating system from the pop-up window. Here I prefer Raspbian os 32 bit operating system. If you want, you can choose other operating systems that you can use for different purposes from this menu.

    Figure 12: Choose OS screen

    If you want the operating system and all the applications that need to be installed on the raspberry pi, you can choose the Full version. For this, the Raspberry pi os (Other) tab is selected. Raspberry pi os Full tab is selected from the window that opens.

    Figure 13: full version raspbian os 32 bit version selection

    The settings button can be seen in the lower right corner of the opening screen. By clicking this button, we can change various settings that the raspberry pi will need during installation.

    Figure 14: The required settings can be changed during installation using the settings button.

    Many settings can be made, such as activating the SSH connection, wifi connection settings, entering the user name and password.

    If you do not have hardware for raspberry pi at the time of installation, such as monitor, keyboard, mouse, it is enough that your raspberry pi and your personal computer are connected to the same network. ssh connection can be used for this purpose. Thanks to the wifi setting we will make in the settings section, we can provide a remote connection to the raspberry pi card, which is on the same network as your pc.

    Figure 15: Setup settings window

    2-Select microSD Card: Your microsd card must be formatted in fat32 format.

    3-Write Button : All files in your selected microsd card will be deleted and after the work is finished, you will receive the operating system loaded.

    B- Installation using iso file

    In this section, the installation of the “Raspberry Pi OS with desktop and recommended software” version will be explained. In other versions, there are not some applications to be used as many packages have been removed to reduce the size. The MU Editor application will be used for programming the Raspberry Pi board. This application is only available in the "Raspberry Pi OS with desktop and recommended software" version. In addition, applications such as Scratch are only available in this version for the user to use.

    For installation, the file must be downloaded and extracted from the compressed folder. Looking at the extracted file, it will be seen that the file is a mirror file.

    Figure 16: Raspberry Pi disk image (ISO file)

    After downloading your preferred iso file to your computer, you need a program that will allow you to install your operating system on your sd card. For this purpose, you can choose the win32 imager application. Download this application from https://win32diskimager.org/#download and install it on your computer.

    Figure 17: Writing .img file to sd card.

    After the image file is loaded on the SD card, the operating system can be started by inserting the SD card into the Raspberry Pi.

    Real Life Products of Internet of Things

    The most in-style web of Things (IoT) devices vary from wearable technical schools to exotic home appliances. Our advanced algorithms monitor and shield over one billion devices, which needs us to exactly establish the categories, models, and configurations of active devices. These device intelligence algorithms are the rationale behind the us having a number of the foremost precise information regarding the important quality of IoT products. The percentages provided here represent the recognition of IoT products among all connected devices, together with good phones and computers, to administer readers a clearer read of the important scale IoT devices have within the online shopper scheme. the 2 dominant device classes – computers and good phones – together compose around sixty-two of all connected devices.

    Products of Internet of things

    IoT goes on the far side in style things like good TVs, wearable devices, or good home appliances. Today, there are dozens of classes of connected devices starting from easy sensors to complicated or uncommon products.

    It’s a steal: Amazon Go

    Imagine walking into a store, taking what you wish, and departing while not flashing your MasterCard. Amazon Go might revolutionize however we tend to search by removing checkouts and reducing the time we tend to pay to queue for groceries. rather than searching, prying the checkout to pay and so departure, Amazon Go uses “Just Walk Out Technology”. The IoT product uses laptop vision, deep learning algorithms, and sensing element technology to observe once things are picked up, these things are then mechanically further to your Amazon account cart and acquired after you leave. All you would like is that the Amazon Go app, a smartphone, and a sack, creating searching visits easy! The technical school large already has one Amazon Go store open in Seattle, though it’s solely hospitable Amazon staff at this stage.

    Turning trash into treasure: Bigbelly’s waste usage system

    Bigbelly aims to show current waste assortment and usage efforts into an additional economical method that might save cash and scale back our carbon footprint. Bigbelly offers a whole system from the bins that grasp after they want avoidance, to improve services, maintenance, and watching, for a set monthly fee. It uses its IoT-connected stations to gather information and frequently improve the system because it ‘learns’. The system additionally aims to assist businesses, universities, town officers and additional to be told that usage effort are operating and which of them aren’t, serving to guard the surroundings.

    Thinking on your feet: Digitsole good Footwear

    Digitsole is creating thinking on your feet literally by providing “smart” insoles that appraise your steps. The insoles will log distance, live speed, track calories burned, and may even heat your feet victimization specially designed innersole parts. The IoT product is often fitted to any shoe, being equipped with Bluetooth four.0 and connected to a smartphone app that's perpetually updated. The insoles are additional correct than smartwatches and will facilitate with conditions that have an effect on circulation like Reynaud’s malady that leave feet feeling cooling.

    Sippo bottle

    Do you ever dream of getting an association supervisor? Well, your want is our command. Sippo is your association trainer. It sets goals for you, supported your level of activity and surroundings. With all the bits and bobs we've got to try to do daily, potable is forgotten, and is commonly born off the to try to list. Sippo reminds us. to drink and keep us. hydrous and energized. this is often undoubtedly close to the highest of our want list!

    Nest smoke alarm

    Nest alarm isn’t the foremost exciting IoT widget, however, it undoubtedly is sensible. It sends you a notification if it senses smoke or hearth in your house, whether or not you're home or away. easy and effective.

    iKettle

    Here is that the answer to staying in bed simply a bit longer on those cold winter mornings. iKettle permits you to boil the kettle from any area of the house via a mobile app. we tend to adore it however do question however Anyone would fill it up from a phone? Life-changing? most likely not however it's undoubtedly an appealing IoT product.

    Smart Diapers

    As it says on the tin, good Diapers are good enough to warn you if your baby is unwell. while they won’t replace parental good judgment and intuition, to not mention your native physician, they'll well assist you to establish an unhealthiness ahead of time. value a try!

    Nest Thermostat

    Save yourself running around the house turning off the radiators simply to avoid wasting that further energy before you kick-off. The nest may be a good home thermostat that gets to grasp the temperature you prefer once you’re reception or away. you'll management it from your smartphone or pill regardless of wherever you're, therefore the home is nice and heats for your arrival home on those cold winter days. All sounds hunky-dory to me!

    Intelligent kitchen appliance

    Intelligent kitchen appliance permits additional economical change of state and maybe controlled from your phone. It claims to be quicker and uses up less energy than a standard kitchen appliance. It produces additional accurately burned dishes and notifies you via your phone once dinner is prepared. a good IoT widget for people who want a bit of inspiration within the room, if you don’t mind the additional litter.

    Smart lock

    August good Lock has tested to be a reliable security IoT device. It permits the user to manage their doors from any location hassle-free. It helps the user to stay thieves away and family in your home.

    Top Features:

    • permits the user to grasp regarding each person returning and going into your home.
    • Provides unlimited digital keys and no worry of the purloined key.
    • It offers standing updates of your door because it is correctly closed or not.
    • it's an honest auto-unlock feature and before long because the user arrives close to the door it opens mechanically.
    • simple installation and is compatible with most traditional single cylinder deadbolts.

    Apple Watch and HomeKit:

    Apple is the most talked-about company of gadgets and devices. Apple has modified the globe with its creative and ultra-modern devices. Be it phones, laptops, or other devices, Apple has itself powerfully established. The Apple Watch is that an example of however advanced the technology is at Apple. except for time and date, the Apple watch allows you to stay a journal of your health and daily activities. conjointly the voice activation permits you to induce notifications in instant. View maps, hear music, and beware of your calls simply by one watch. shocked at what a watch will do? Well, it has a heap of additional options for you to explore and build life easier. Apart from the Apple Watch, Apple has a conjointly free Apple HomeKit Framework, that allows Siri (voice assistant in Apple’s iOS) to speak with the devices and accessories at your home so that they'll be controlled remotely.

    Google Home Voice Controller

    Google Home Voice Controller may be a sensible IoT device that permits the user to fancy options like media, alarms, lights, thermostats, management the amount, and far a lot of functions simply by their voice.

    Top Features:

    • Google home permits a user to concentrate on media.
    • Let’s the user to regulate TV and speakers.
    • It can carry off timers and alarms.
    • It will remotely handle the amount and residential lights further.
    • It helps the user to arrange their day and obtain things done mechanically

    Smart Contact Lenses

    A considerable analysis is being done on developing good contact lenses which will collect health data or treat specific eye conditions. Swiss company Sensimed has developed a noninvasive good contact known as plectognath that features a detector embedded are exceedingly soft polymer contact that detects little fluctuations in an eye’s volume, which may be AN indicator of eye disease. The device transmits knowledge wirelessly from the detector to AN adhesive antenna worn around the eye.

    Ralph Lauren polytech shirt

    Ralph Lauren could be a yank consumer goods a company that has launched The Polotech Shirt for athletes and become a pioneer to bring IoT in the clothing trade. This Shirt will record the biometric readings of Athletes like vital signs, calories burned, activity levels, respiratory depths, etc., and might facilitate him to deliver the most effective performance. They are often connected to the Apple Watch or iPhone and might track & record all the activities in your iPhone. therefore this Polotech Shirt at the side of the iPhone will become your complete fitness hunter or we will say, fitness trainer.

    Wemo switch

    Wemo switches good plug aims at giving home automation so that the user will manage the house electronic appliances remotely through an app. It uses a Wi-Fi network to supply wireless management numerous devices like lamps, stereos, fans, heaters, etc. except for that it also can work 3G or 4G mobile net. It is often simply blocked to any power outlet and conjointly connects to an influence twine from any device. To use it, a Wemo App has got to be downloaded from the Google Play Store or Apple App Store, relying upon the device. at the moment the Wemo good switch is blocked into the outlet are more an appliance is blocked to that. Next, it's to be connected to the house Wi-Fi network and directions seem on the screen to hold out the installation. After this, a user will switch on/off any appliance or set schedules remotely for the devices to work.

    Philips Hue Bulbs

    Philips hue technology presents a wise thanks to management the lighting of your home with the assistance of Wi-Fi-enabled bulbs. The starter kit comes packed with three bulbs long with a disk base station that connects to the Wi-Fi through coax. the full package aims at permitting the user to regulate the color, brightness additionally as temporal order of the lights. Once the bulbs are fitted and affiliation is established, the hue bulbs mechanically hook up with the bottom station, and also the app is often put in to work the lights. There are different themes to settle on from the app to possess different lighting effects. The lights are often switched on/off mechanically at the scheduled time and might be tailor-made to induce completely different notifications.

    Foobot Air Quality Monitor

    Foobot could be a reliable IoT device that is useful in activity indoor pollution and ends up in improved air quality in homes, workplaces, and indoor public areas. It usually provides correct results.

    Top Features:

    • It cleans the pollution.
    • Keeps the humidity and temperature levels in restraint.
    • Helps to develop additional focus and energy by respiratory recent air.
    • Supports to extend the period of the users.
    • It incorporates an in no time and easy installation method.

    Logitech Harmony Universal Remote

    Logitech Harmony could be a powerful and helpful IoT good device for daily functions. it's a universal remote that enables you to management your house media, lighting, and different good devices from one location remotely.

    Top Features:

    • It has options of up to eight remotes, reducing complexness and clusters in-house.
    • It supports quite 5000 brands and new brands also can be added within the future.
    • It incorporates easy online setup victimization of your laptop.
    • It includes one-click activity buttons like watching an optical disk so that it switches to that.

    Wemo Insight good Plug

    Wemo good plug could be a sensible IoT product that helps to show on your lights, flip appliances on/off, and provides the power to observe them from anyplace remotely

    Top Features:

    • It gets insight into home energy usage and is simple to use and install.
    • It conjointly creates rules, schedules, and receives notifications.
    • Compatible with each IOS and golem device.
    • It integrates with Alexa or Google voice for hands-free voice management.

    Keep your field and plants alive

    Whether taking care of a little farming system or an outsized yard field, systems like GreenIQ with their suite of sensors and net property facilitate prevent time and resources by keeping plants fed supported their actual growing desires and conditions whereas automating abundant of the labor processes.

    Conclusion

    Internet of Things IoT devices could be a burning topic within the current era. we tend to understand however these good devices developed by the world for the world are impacting in each positive and negative ways in which.

    In this article, we tend to come to understand concerning IoT devices that are that the net of Things, the kinds of devices that embrace IoT in our day-to-day life, and also the method during which the IoT devices build a user’s task easily and fast.

    We saw however this technology that is increasing drastically goes to impacts the long run of the world and also the working rule of IoT devices. you furthermore may come to understand concerning the worth, features, video clarification and from wherever to shop for these devices as per your necessities.

    With these points, we tend to believe the time isn't too way, during which we'll see every individual, home victimization and looking on these “ Internet of things”.

    Syed Zain Nasir

    I am Syed Zain Nasir, the founder of <a href=https://www.TheEngineeringProjects.com/>The Engineering Projects</a> (TEP). I am a programmer since 2009 before that I just search things, make small projects and now I am sharing my knowledge through this platform.I also work as a freelancer and did many projects related to programming and electrical circuitry. <a href=https://plus.google.com/+SyedZainNasir/>My Google Profile+</a>

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