- cabin_node: subscribes to local MQTT (ESPHome sensors), sends
temperature, battery voltage/SOC and switch states over LoRa SF12
- cabin_gw: receives LoRa packets, publishes JSON to home MQTT broker
- Bidirectional: gateway forwards ON/OFF commands from home HA to node
- cabin_node always in RX mode (12V powered) — commands arrive instantly
- ESPHome config for ESP32 on teknisk rom: Victron MPPT BLE + JBD BMS
BLE + DS18B20 temperatures + GPIO switches for varme/VVB
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
