Introduction

My passion for amateur radio has driven me to set up several Raspberry Pi devices for digital modes over the years. My Raspberry Pi 3 and Raspberry Pi Zero W have been running Pi-Star with an STM32 MMDVM hat flawlessly. The Pi 3 serves as my home setup for DMR on Brandmeister and YSF testing with my own YSF Reflector, while the Pi Zero W is my trusty companion for mobile use in my camper van.

Experimenting with Meshtastic on 433MHz with MQTT Bridging

Introduction

Beyond using LilyGO modules for LoRa APRS, I’ve been exploring their capabilities with Meshtastic. While experimenting, I quickly realized that most Meshtastic nodes in Europe operate on 868MHz, making it impossible to connect my 433MHz nodes directly to an existing network. However, MQTT provided an alternative solution, allowing me to bridge my nodes to the wider Meshtastic ecosystem. This article details my technical setup and how MQTT enables interoperability across different frequencies.