BigRedButton is a project consisting of a ESP8266 micro-controller embedded in a palm switch which triggers an alarm on your smartphone.
See the following repositories:
- BigRedButton-firmware (Firmware for an ESP8266 written in LUA based on NodeMCU)
- BigRedButton-server (Server-side code written in JavaScript using Node.JS)
- BigRedButton-android (Receiver app for android written in Java)
to be written
At YouTube: https://www.youtube.com/watch?v=QfcH8YSHr_Y