Hello friends, I hope you all are having fun. Today, I am going to share the 9th tutorial of Section-III in our Raspberry Pi 4 Programming Course. In the previous tutorial, we interfaced an air pressure sensor BMP180 with Raspberry Pi 4. In this tutorial, you'll learn how to interface an MQ-2 gas sensor with a Raspberry Pi 4. Many apartments, residences, and workplaces rely heavily on these gas sensors to detect smoke or gas and alert the appropriate personnel in an emergency. In addition to gas and smoke, this sensor is sensitive to various odorous gases.
Project DescriptionToday, we will interface a gas sensor MQ-2 with Raspberry Pi 4 and will display the values on Raspberry Pi Console Window.
Components Required
These are the components use ...
Greetings! This is the complete project of our Raspberry Pi 4 tutorials. In our previous tutorial, we learned to set up our raspberry pi as a virtual private network server. In this tutorial, we will design a smart attendance system using an RFID card reader, which we will use to sign in students in attendance in a class.
First, we will design a database for our website, then we will design the RFID circuit for scanning the student cards and displaying present students on the webpage, and finally, we will design the website that we will use to display the attendees of a class.
Components
RFID card kit
Breadboard
Jumper wires
Raspberry pi 4
I2C LCD screen
Design a database in MySQL server
Additionally, the Database server offers a DBMS ...
Hello everyone! I hope you all will be absolutely fine and having fun. Today, I am going to provide a detailed discussion on 2 Relay Module Interfacing with Arduino. First of all I would like to explain you that what is relay and how to use it and then we will move forward towards 2 relay module interfacing with Arduino. I have already controlled relay with 555 timers. 2 relay module consists of two relays. Relay is basically an electronic device or a switch which is used to open and close the circuits electronically.
A relay controls an electric circuit by opening and closing contacts in another circuit. When the relay contact is normally open (NO), there will be an open connection when the relay is not energized. When the relay contact is norm ...
Hi readers! I hope you are well and finding some thrilling advancement. In the high-speed electronic world where accuracy cannot be compromised and error is unthinkable, the Flying Probe Test is the unsung hero of PCB integrity. Today, the topic of our discourse is the Flying Probe Test and its use in PCB Fabrication.
In the complex realm of contemporary electronics, the dependability of a printed circuit board (PCB) can either make or destroy a product. With devices shrinking in size, speeding up in performance, and becoming increasingly feature-dense, the need for unflinching quality and accuracy in PCB manufacturing has grown stronger. Getting each trace, via, and connection perfectly manufactured is no longer a choice; it's a necessity. That's where Flying Probe Testing (FPT) comes in ...
Hello friends, I hope you all are doing great. We are very excited to introduce something new for our website. Our team members were working on the website and finally we have launched this new feature. Now you can also become a part of this blog quite easily, by writing engineering tutorials & posts and can also publish your technical and engineering-related projects on our website.
Guys, we hope that you are well aware of our website The Engineering Project. It is the platform where we provide different engineering projects and tutorials, for engineering students & professionals, to help them in their projects & products.
In order to share your engineering experience, you just have to visit our website and click on the Add New Tutor ...
Hi Fellas! Hope you’re doing well today. I welcome you on board. In this post today, I’ll detail the Introduction to 2SD882.
2sd882 is an NPN bipolar junction transistor used for amplification and switching purposes. It is a semiconductor device composed of silicon material and comes in the TO-126 package. As this is a bipolar transistor, here conductivity is carried out by two charge carriers i.e. electrons and holes where electrons are major charge carriers and holes are minority carriers. During the amplification application, the small input current across one pair of terminals is used to produce a large output current across other pairs of terminals.
In this post, I’ll walk you through the working principle, pinout, power ratings, alternat ...
Hello friends, I hope you all are doing great. In today’s tutorial, we will have a look at Transistor as a Switch. The transistor is a 3 pin semiconductor module used for different amplifier and switching circuits. It was created by William Shockley (who was a physicist of United States of America) in 1947. It also used in different engineering projects and circuitry. Depending on doping level transistors are classified into 2 types first one NPN and the second one is PNP transistor.
Most transistors are constructed from silicon and germanium but other semiconductor materials are also used for construction of transistors. In today's post, we will discuss how we can use a transistor as a switch and also see its practical working in different circui ...
Hi readers! I hope you’re having a great day and finding something thrilling. Imagine being able to solve a problem in seconds that would take the fastest supercomputers millennia, that is, quantum computing. Today, we will cover Quantum Computing.
Quantum computing is a relatively new technology that can present a new way of thinking about how information may be processed using the laws of quantum mechanics. Classical computing uses bits, which are either 0 or 1, while processing information, whereas quantum computing uses qubits and has the possibility of being a bunch of things at the same time by virtue known as the “superposition”. In addition to "superposition", qubits can be connected across space through a property known as "Entanglement", which allows quantum computers the potent ...
It's not news that the world is one of portability now. Ever since laptops became more easily transportable and smartphones became the one object you could find in every person's pocket, desktop and fixed-location tech has been something of a relic of a bygone era. You're more likely to see a pig fly than someone under the age of 30 using a landline phone or desktop computer.
However, as businesses have pivoted to online-first digital storefronts and presences, there has been a small section that has yet to catch up with the mobile-only generation with fully-optimized digital presences. Because of that, there's a clear niche that software engineers and developers can exploit and it could be 2025's hottest skill set for this group.
Mobile Priority for Every Business in the 21st Century
E ...
Hello pupil! We hope you are doing well with object-oriented programming with Python. OOP is an extremely important topic in programming, and the good thing about Python is that the concept of OOP can be implemented in it. In the previous lecture, we made a basic introduction to all the elements that are used in the OOP, and right now, we are moving forward with the detail of each concert with examples. The imperative nature of the OOP is useful for us because it uses the statements to change the programming state, and in this way, the working of the code becomes easy and effective. To use the applications of Python, the imperative nature of OOP will give us the tools we need to get the perfect results by using our creativity. We will prove this in just a bit, but here are the highlights o ...
