Smart Gasmeter · Smarthome interface
Key details:
- Use and improve a cheap xiaomi temperature sensor for measuring gas consumption.
- Host: Flogiston RF1 G4 meter - reed signal every 0.01 m3
- Sensor: NO (normally open) reed switch
- Note: The wiring was for test purposes - now it is added to a custom project box.
- Note: Reed switch still introduces bouncing effect, especially when in a closed state – need to debounce it.
Initial iterations:
- ESP MCU – failed as I have no stable 220AC or 5DC near the meter.
- ESP32Cam AI-on-the-edge
- ESP8266 Wifi MCU with reed switch
- ESP32 ULP reed-switch with periodic Wifi push.
- Xiaomi LYWSD03MMC temperature meter with custom firmware
- custom firmware by pvvx
- discussions and idea leading Victor kindly adding reed counter, then having general DIY format extended to BTHome protocol.
