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README: add MQTT configuration info

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Marek Hobler 2022-02-12 13:33:36 +01:00
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README.md
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# everblu-meters
Fetch water/gas usage data from Cyble EverBlu meters using RADIAN protocol on 433Mhz.
# everblu-meters - Water usage data for Home Assistant
Fetch water/gas usage data from Cyble EverBlu meters using RADIAN protocol on 433Mhz. Intergrated with Home Assistant via MQTT.
Note: HASS autodiscovery is still missing, during development.
Meters supported:
- Itron EverBlu Cyble Enhanced
## Hardware
![Raspberry Pi Zero with CC1101](board.jpg)
The project runs on Raspberry Pi with an RF transreciver (CC1101).
@ -25,16 +26,17 @@ The project runs on Raspberry Pi with an RF transreciver (CC1101).
1. Enable SPI in raspi-config.
2. Install WiringPi from https://github.com/WiringPi/WiringPi/
3. Install libmosquitto-dev: `apt install libmosquitto-dev`
4. Set meter serial number and production date in `cc1101.c`, it can be found on the meter label itself:
4. Set meter serial number and production date in `everblu_meters.c`, it can be found on the meter label itself:
![Cyble Meter Label](meter_label.png)
5. Configure MQTT connection details in `everblu_meters.c`: `MQTT_HOST`, `MQTT_USER`, 'MQTT_PASS`
5. Compile the code with `make`
6. Run `everblu_meters`, after ~2s your meter data should be on the screen.
6. Run `everblu_meters`, after ~2s your meter data should be on the screen and data should be pushed to MQTT.
7. Setup crontab to run it twice a day
## Troubleshooting
### Frequency adjustment
Your transreciver module may be not calibrated correctly, please modify frequency a bit lower or higher and try again
Your transreciver module may be not calibrated correctly, please modify frequency a bit lower or higher and try again. You may use RTL-SDR to measure the offset needed.
### Business hours