This energy-efficient system uses InfraRed (IR) sensor pairs to count students entering or leaving a classroom, helping teachers take attendance. Here's how it works: IR sensor pairs detect students ...

A DIY Robot comprised of two microcontrollers, namely the ESP32 and Arduino Nano; integrated with multiple sensors. An IR Sensor Array [TCRT5000] for Line Following, Ultrasonic Sensor for Obstacle ...

I recently had to build an infrared close proximity sensor that could tell if something was dropped in a parcel delivery drop box. After some searching, I ended up using a microcontroller and a piece ...

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, ...

Photoelectric sensors detect objects and surface changes using variations in optical properties. Each sensor includes a light emitter and a receiver, with most relying on infrared light. In optical ...

Building a maze-solving robot is an intresting way to get into the world of robotics and autonomous systems. Imagine creating a small device that can intelligently navigate through complex mazes, ...