Hello friends, I hope you all are doing well. Today, I am going to share the 4th chapter of Section-III in our Raspberry Pi programming course. In the previous lecture, we studied the Interfacing of IR sensor with Raspberry Pi 4. In this guide, you'll learn how to interface a PIR sensor with Raspberry Pi to create a motion detector. A passive infrared (PIR) sensor is a straightforward yet effective tool for motion detection.
As a bonus, a piezo speaker will play an audio clip whenever motion is detected. GPIO pins are required for both of these accessories. This tutorial is a great starting point for those who have never worked with electronic components and circuits.
These sensors are used in traditional, old-generation security
systems. In con ...
The era of throwaway electronics may finally be drawing to a close. Across the UK, a quiet revolution is taking shape as consumers increasingly reject the cycle of planned obsolescence that has defined modern retail for decades. From community repair cafés in Manchester to government legislation in Westminster, the right to repair movement is reshaping how Britons think about the products they buy.
The True Cost of Disposable Culture
British households discard an estimated 1.5 million tonnes of electrical waste each year, making the UK one of Europe's largest producers of e-waste. Much of this ends up in landfill or is shipped overseas, despite containing valuable materials that could be recovered and reused.
The environmental toll is staggering, but so too is the financial burden on c ...
Thank you for joining us for yet another session of this series on Raspberry Pi programming. In the preceding tutorial, we constructed a personal Twitter bot using Tweepy, a Py framework for querying the Twitter application programming interface. We also constructed a Response to robot mentions that would post a response to everybody's tweet mentioning it with a certain keyword. However, in this tutorial, we will implement a security system using a motion sensor with an alarm. This is what it looks like:
PIR Motion Sensors can be implemented with RPi by understanding how it is connected to a Raspberry Pi. Whenever the motion sensor detects human movement, an alarm is triggered in this project and the LEDs blink. You may create a simple motion-det ...
We're glad you could join us for another lesson in our comprehensive Raspberry Pi programming guide. I will show you how to install and connect the RFID card chip to your Raspberry Pi through step-by-step instructions.
Modern security systems would only be complete using radio frequency (RFID) devices. To control who can enter a facility or which rooms they can access, RFID chips and card readers are employed. The RFID card's unique identification number can be read wirelessly with a wall-mounted RFID reader. A door will only unlock and allow entry if the RFID card's unique identification number matches a list of approved cards.
It's fun to tinker with this circuit, and it may be used in many other applications, from opening locks to taking a ...
Hi Friends! Good to see you on board. In this post today, I'll walk you through the Introduction to Electric Generators. A generator is a machine that converts mechanical energy to electrical energy that is further used in power grid stations. Gas turbines, steam turbines, water turbines, internal combustion engines are some sources of generating mechanical energy for generators.
In an electric generator, a rectangular coil of electric conductors is used in a changing magnetic field of the poles of a horseshoe type magnet. The current is generated in the coil when it rotates and cuts the magnetic field lines. The electric generator is opposite to the electric motor in the working principle and similar in construction. A generator that comes with ...
A teacher is the one who helps children to develop skills to learn and exploring the world. If we want our children to be skilled person, we need to take care of their education. Schools are not enough for them, homeschooling is a great idea where parents can teach their child with better attention. Parents must collaborate with teacher
for better result. A teacher is the one who helps children to develop skills to learn and exploring the world. If we want our children to be skilled person, we need to take care of their education. Schools are not enough for them, homeschooling is a great idea where parents can teach their child with better attention. Parents must collaborate with teacher for better result.
eLearning News for Pasco Parents
eLear ...
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Hello friends, hope you are fine and having fun with your lives. Till now we have seen two tutorials on Pixy Camera module, in the first tutorial we have seen How to Get started with Pixy Camera and after that we have seen How to Install Pixy Camera software which is named as PixyMon. So, now I hope that you have installed the Pixy camera software and have the Pixy Camera module in hand along with USB to Mini USB cable. Because in this tutorial we are gonna plug our Pixy Camera module with moduter and will upload the latest firmware in our Pixy Camera Module, which isn't much difficult and would be a piece of cake if you followed all the instructions carefully.
Pixy Camera comes with some old firmware which is up ...
Hello friends,I hope you all are doing great and having fun with your lives. In today's tutorial, we are gonna have a look at Model Binding in ASP.NET MVC. It's our 13th tutorial in ASP.NET MVC series. Today, we are gonna discuss a new concept in ASP.NET MVC and it's more of a luxury as it automates the job and makes our work easy.
Suppose, in your application, you want to create a registration form and thus you need to pass this data from View to your model, so that it could be saved in your database. So, in order to bind this HTTP request data from View to Model, we use Model Binding. Let's have a look at Model Binding in ASP.NET MVC in detail:
Model Binding in ASP.NET MVC
Model Binding in ASP.NET MVC is used to bind the data sent by the HTTP ...
Hi Folks! Hope this finds you well. Thank you for stopping by. In this post today, I'll be discussing the Introduction to BD137.
BD137 is an NPN medium power transistor mainly employed in switching and audio amplification applications. It is composed of silicon material and comes in the TO-126 package. The collector-base and collector-emitter voltages are 45V and the emitter-base voltage is 5V which details that only 5V is required to bias this transistor and start transistor action. The collector current is 1.5A which documents that it can support loads under 1.5A. Power dissipation is 12.5W and storage temperature ranges from -55 to 150C.
Read this entire post, as I'll walk you through the complete Introduction to BD137 detailing pinout, datas ...
Hello everyone! I hope you all will be absolutely fine and having fun. Today, I am going to share my knowledge about Introduction to TL072. TL 072 is basically a high speed Junction Field Effect Transistor (JFET). It is also known as the dual operational amplifier. It has a bipolar transistor and high voltage JFET in its case. TL-072's important features include low offset current, high slew rates, low input voltage, low offset temperature coefficient etc.
Some of the major features may include low power consumption, low noise, common mode input voltage range includes Vcc, latch-up free operation etc. TL 072 has a very wide range of applications including oscilloscope, solar inverters, AC inverters and VF drives, audio mixers, Un-interruptable Pow ...
