As usual I’ll be using a NodeMCU board (I really did order a lot of them) which uses an ESP8266, but there’s no reason this would be difficult to achieve on an Arduino-based device.

What makes the project work behind the scenes is some clever code-reuse by [Rotohammer] on the ESP8266 forums. Essentially, he wrapped the Arduino’s one-wire library, giving it simple BASIC ...

Discover how to build a real-time event notification system by integrating NodeMCU (Arduino) with Google Firebase and Laravel. This tutorial covers the complete setup, from hardware to cloud and ...