Here is the diagram of my Arduino infrared close proximity sensor. As you can see, the core part of my experimental setup is an Arduino UNO, ... (Arduino Uno/Nano Sketch)… [code] #define ALERT_LED 13 ...

The nano sensor interface presented below is a microcontroller-based universal sensor interface with a power-saver mechanism. The idea, centered around an Arduino Nano (v3) microcontroller, was ...

The device itself folded up like a laptop, and on the two surfaces had four IR LED/sensor pairs. ... which gets its instructions from an Arduino Nano and an A4988 motor driver.