Welcome to the next tutorial of our raspberry pi programming tutorial. The previous tutorial showed us how to set up a weather station using the Internet of Things (IoT) on a Raspberry Pi 4. First, we studied how a weather station works on a fundamental level. Then we developed a Python script to collect data from the station. In contrast, we'll construct an automatic gate using a Raspberry Pi, a load cell, and an HX711 weight sensor.
These pressure-sensitive gates are common in shopping centers and showrooms; they open when someone is in the immediate vicinity and close again when the person is out of sight. Like the Automatic Gate, we just made, this one will open in response to weight or pressure and stay that way until the force is removed. If ...
Let's be honest about how "free" logo makers usually work.
You spend several minutes creating the perfect logo and once you’re finished, you click “download”. And then a screen appears asking for your card details. Annoying, isn’t it?
So, you realize that the tool was never free; it just waited until you were invested before showing you the price.
That’s exactly why we’ve compiled a list of the top AI logo generators in 2026 that provide free download options and reasonable pricing for the paid logo templates.
The Short Version
If you are not planning to spend any penny but want to have high-quality, copyright-safe logos with multiple export options, 2 tools are worth considering: Design.com and BrandCrowd.com. Both let you download a real logo for free, no card required. The other 3 ...
Hello learners, Welcome to another tutorial on signals and systems. We are learning about the responses of the signals. We all have experience in situations where the change in the frequency of a system, such as radios or control systems, results in a change in the working or result of that system. So we have the idea that frequencies play an important role in different types of systems. In the previous lecture, we saw the impulse response of the system. Our mission today is to learn about the frequency response of the LTI system. We will learn all the basic information about the topic and will revise some important points as well. To do this, have a look at today’s concepts:
What is the LTI system?
What is frequency response?
How is frequency response performed without the function i ...
Imagine a real-time object counting system that is budget-friendly and easy to implement. You can achieve this goal with an ESP32-CAM. Today we will build an ESP32-CAM Object Counting System. This project is a combination of the power of embedded systems and computer vision.
The main processor of the system is ESP32-CAM, a budget-friendly microcontroller with an integrated camera. This tiny powerhouse captures live video streams and transmits them over Wi-Fi. On the other side, a Python-based application processes these streams, detects objects using image processing techniques, and displays the count dynamically.
Whether it’s tracking inventory in a warehouse, monitoring traffic flow, or automating production lines, this system is versatile and adaptable. You can implement this proje ...
Hello everyone! I hope you all will be absolutely fine and having fun. Today, I am going to share my knowledge about how to make a simple Virtual Instrument (VI) for Stepper Motor Direction Control in LabVIEW. In my previous tutorial, I have worked on Stepper Motor Direction Control using Arduino, in which I have controlled Stepper Motor Direction Control using Arduino and I am gonna use the same setup but this time I am gonna do the Stepper Motor Direction Control in LabVIEW. Moreover, you should also have a look at Stepper Motor Direction Control using Matlab.
In this tutorial, I going to work on the program for Stepper Motor Direction Control in LabVIEW. So, before going into the details of this tutorial, you must go through my previous tutor ...
Hi Friends! Hope you are doing well. In this post, I'll uncover the details on How to use pinMode Arduino Command. The pinMode defines the Arduino Pins, if they are used as an input or output. The INPUT_PULLUP is another option achieved by pinMode, that is mainly used to place a virtual pull-up resistor to the input pins.
We have started Arduino Tutorials for Beginners quite a while now for the newbies, who are really interested to get a hands-on experience with Arduino. Generally, Arduino is known as a Microcontroller, but it is a step ahead of it. The PIC microcontrollers require some basic circuit to start with but Arduino brings revolution in the automation industry by removing the need of developing any basic circuit. Although Atmega328 is th ...
Hi Guys! Hope you’re well today. Happy to see you around. In this post today, I’ll detail how to prevent data loss risk in raid-based storage.
RAID (Redundant Array of Independent Disks) is a data storage virtualization technology used for data redundancy and performance improvement in an Operating System. It has redefined how storage systems store and retrieve data, and its architecture comprises multiple physical disk drive components distributed over one or more logical units.
Prevent Data Loss Risk In Raid-Based Storage
RAID levels vary from RAID 0 to RAID 51 (and beyond). Different levels have different types of redundancy offered; however, a compromise has to be made when it comes to fault tolerance and performance. Although different RAID ...
Hello Folks! Hope you’re well today. Happy to see you around. In this post today, I’ll walk you through the Introduction to IRF2807.
The IRF2807 is an N-channel MOSFET made up using advanced process technology to obtain extremely low on-resistance. This device is fully avalanche and is mainly used in fast switching applications. It comes in TO-package which is universally accepted for commercial-industrial applications.
I suggest you buckle up as I’ll detail the complete Introduction to IRF2807 covering datasheet, pinout, features, and applications.
Let’s dive in.
Introduction to IRF2807
The IRF2807 is an N-channel MOSFET that comes with a power dissipation of around 200W.
This device is mainly used for fast switching applications and low thermal resistance and low packag ...
Hello everyone! I hope you all will be fine and having fun. Today, I am going to give you a detailed Introduction to MAX232. It is an Integrated Circuit(IC) embedded in a single chip and acts as a voltage-level converter. MAX 232 is capable of converting 5V TTL Logic level to TIA/EIA-232-F level and can take up to +-30V input. It is normally used for the communication between microcontroller and Laptop/PC.We can use MAX-232 to convert Transistor Transistor Logic (TTL) voltage level to RS232 and vice versa. RS232 is the method of transferring data using serial communication. MAX 232 is a dual receiver or driver having a capacitive voltage generator to supply RS232 voltage levels from a single supply of 5V. Each receiver converts RS232 inputs to 5V either Transistor Transistor Logic (TTL) ...
Good day peeps! Welcome to another episode of the MQ gas sensor series and today, the topic is the MQ214 natural gas sensor. We know that natural gas is inflammable and is utilised widely for cooking and other purpose in domestic areas as well as a fuel in multiple industries. The leakage of natural gas can be the reason for the accidents and its accumulation may even result in the explosion. Moreover, continuous inhalation of this gas can cause health issues such as nausea, dizziness, and headaches therefore, instant detection of its leakage is crucial. For this, one of the best options is MQ214 because it has a fast response time, low power consumption and is easily available.
In this article, we are discussing the fundamental points about this sensor. We’ll see its basic introduction ...
