Monitor your Generac generator with Home Assistant

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I have a variant that heavily builds on @lmamakos’s template (thank you very much!) but makes some changes:

  • newer-style yaml
  • device_class and icon set
  • Uses JSON numerics only (this avoids extra string parsing in HA)
  • Removed automations
  • Change Battery Voltage Raw to just Battery Voltage (it was stable enough for me)

Dashboard
Dashboard851×502 41.1 KB

Rather than have a Raspberry Pi outside (and worry about EMF, temperature, etc), I setup an ESP32 (via esphome) to act as an RS232-Wifi bridge, and run genmon on a VM on a server inside.

ESP32 RS232-Wifi bridge
ESP32 RS232-Wifi bridge942×1015 170 KB

If you’re interested this setup is fully documented at https://github.com/gregmac/Genmon-ESP32-Serial-Bridge

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