In this tutorial we are going to learn about how to make our onw DIY IR Sensor with the LM324 chip. Let's get started: The purpose of this circuit is to provide a visual indication by activating an ...

Have you ever wondered how speed guns measure the speed of moving vehicles or how an athlete's sprint speed is recorded? Normally these speed sensors work with radar or laser technology to bounce back ...

Have you ever noticed how shopping malls, parking lots, or event venues seem to track the number of people or cars present inside? You might think they use an AI camera to count them, but in reality, ...

This repository contains the design files and documentation for an Infrared (IR) sensor PCB with an integrated LM35 temperature sensor. This project aims to provide a cost-effective and reliable ...

[ladyada] has a freshly-published and amazingly thorough tutorial on passive infrared (PIR) motion sensors. Most often seen in security floodlights and automatic doors, in creative hands these sensors ...