In this video I demonstrate how to detect the proximity of a Bluetooth Low Energy device (such as a Puck.js) using an ESP32 board (a FireBeetle ESP32) and only a tiny amount of code on the Arduino platform.

Code: https://gist.github.com/wybiral/2a96c...

Installing the ESP32 libraries for Arduino: https://github.com/espressif/arduino-...

Learn more about the FireBeetle ESP32: https://www.dfrobot.com/product-1590....

Learn more about Puck.js: http://www.espruino.com/Puck.js