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 ...

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 ...

Speed-Accel-Meter is a user-friendly application that allows you to measure the speed and acceleration of moving objects. It uses an Arduino board, three infrared (IR) sensors, and a 16x2 LCD screen ...

As a result, remote control technologies are being widely adopted across various sectors. Among the many components used in ...