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 ...

Posted in Arduino Hacks Tagged A4988, arduino, dispenser, ir sensor, label, NEMA-17, stepper motor, sticker ...

Posted in Arduino Hacks Tagged arduino, autodesk, debugger, simulator, tinkercad ← Digitool Helps Debugging Making Synths Out Of Audio Cassettes → ...

Infrared sensor module To replicate Krejci’s design, you need an Arduino UNO Rev3 board, an AMG8833 infrared sensor module, and an 8×8 RGB LED matrix.