SØNDAG
2026-08-09
The Cloudy Brain

Too many projects, too many ideas, too few hours — one learning a day anyway

Smart home

Home Assistant, ESP32 sensors, and heat meters decoded over the air.

Home Assistant at the center, ESP32 sensors around the house, and the fun part: wireless M-Bus heat meters and floor-heating thermostats decoded straight from 868 MHz radio with an SDR — custom rtl_433 decoders publishing into MQTT with auto-discovery. If a device emits radio waves, it can probably become a sensor entity.

CODElast 26 weeks · all-time 43 commits · +54k−4k lines
  • Now-playing screen with album art
  • Self-installing binary with web setup
  • Music Assistant integration and sleep timer
  • Live updates and a real music player
  • Home Assistant dashboard for Pi Zero
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