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 ...

[Dustin Andrews] built this add-on board which works as a proximity sensor. He wanted a standalone sensor for his Arduino projects which would use a single pin as a trigger. This lets him alert the… ...

The robot’s code resides on GitHub and the custom 3D-printed chassis is up on Thingiverse. If you like ESP32 projects you should be sure to check out the Monster Board and the Hamster Tracker we ...