PubSub_Pico

Program name: Test105.py

This program is written in Python and has been tested on a Raspberry Pi Pico W.

It will connect to an internal Node-Red broker (running on a Raspberry Pi 4) via WiFi using the MQTT protocol.

Communication is done in both directions (Publish and Subscribe funtions).

Publish: A button (GPIO17) will initiate an interrupt, which sets a global variable.

Subscribe: An external LED (GPIO16) will switch on/off depending on a message received from the Node-Red broker.

Comments in the program are in German language.