122 lines
4.4 KiB
Markdown
122 lines
4.4 KiB
Markdown
# Xiaomi Mi Flora Plant Sensor MQTT Client/Daemon
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A simple Linux python script to query arbitrary Mi Flora plant sensor devices and send the data to an **MQTT** broker,
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e.g., the famous [Eclipse Mosquitto](https://projects.eclipse.org/projects/technology.mosquitto) or the embedded MQTT broker in [Home Assistant](https://home-assistant.io). After data made the hop to the MQTT broker it can be used by home automation software like Home Assistant or [openHAB](https://openhab.org).
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The program can be executed for a single run or in **daemon mode** to run continuously in the background.
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### Features
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* Support for [Xiaomi](https://xiaomi-mi.com/sockets-and-sensors/xiaomi-huahuacaocao-flower-care-smart-monitor) [Mi Flora sensors](https://www.aliexpress.com/item/Newest-Original-Xiaomi-Flora-Monitor-Digital-Plants-Flowers-Soil-Water-Light-Tester-Sensor-Monitor-for-Aquarium/32685750372.html) (tested with firmware v2.6.2, v2.6.4, v2.6.6, v3.1.4, others anticipated)
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* Build on top of [open-homeautomation/miflora](https://github.com/open-homeautomation/miflora)
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* Highly configurable
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* Data publication via MQTT
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* JSON encoded
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* MQTT authentication support
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* Daemon mode (default)
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* MQTT-less mode, printing data directly to stdout/file
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* Reliable and inituitive
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### Readings
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The Mi Flora sensor offers the following plant and soil readings:
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| Name | Description |
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|-----------------|-------------|
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| `temperature` | Air temperature, in [°C] (0.1°C resolution) |
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| `light` | [Sunlight intensity](https://aquarium-digest.com/tag/lumenslux-requirements-of-a-cannabis-plant/), in [lux] |
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| `moisture` | (Soil moisture](https://observant.zendesk.com/hc/en-us/articles/208067926-Monitoring-Soil-Moisture-for-Optimal-Crop-Growth), in [%] |
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| `conductivity` | [Soil fertility](https://www.plantcaretools.com/measure-fertilization-with-ec-meters-for-plants-faq), in [µS/cm] |
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| `battery` | Sensor battery level, in [%] |
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### Installation
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Shown for a modern Debian system:
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```shell
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git clone https://github.com/ThomDietrich/miflora-mqtt-daemon.git /opt/miflora-mqtt-daemon
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cd /opt/miflora-mqtt-daemon
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apt install python3 python3-pip bluetooth libbluetooth-dev libboost-python-dev libglib2.0-dev
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pip3 install -r requirements.txt
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```
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### Configuration
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To match personal needs all operation details can be configured using the file [`config.ini`](config.ini).
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You need to add at least one sensor to the configuration.
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Scan for available Miflora sensors in your proximity with the command:
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```shell
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hcitool lescan
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```
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### Execution
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A first test run is as easy as:
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```shell
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python3 mqtt-flora.py
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```
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With a correct configuration the result should look similar to the the screencap above.
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The extensive output can be reduced to error messages:
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```shell
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python3 mqtt-flora.py > /dev/null
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```
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You probably want to execute the program **continuously in the background**.
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This can either be done by using the internal daemon or cron.
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**Attention:** Daemon mode can be enabled (default) and disabled in the config file.
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1. Send the program into the background with some simple command line foo:
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```shell
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python3 /path/to/mqtt-flora.py &
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```
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*Hint:* Bring back to foreground with `fg`.
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2. Screen Shell - Run the program inside a [screen shell](https://www.howtoforge.com/linux_screen):
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```shell
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screen -S mqtt-flora -d -m python3 /path/to/mqtt-flora.py
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```
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3. Cron job - Add a new con job, e.g., `/etc/cron.d/miflora`, execute every 5 minutes
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```shell
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*/5 * * * * root python3 /path/to/mqtt-flora.py > /dev/null
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```
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### Integration
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Data will be published to the MQTT broker topic "`miflora/sensorname`" (names configurable).
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An example:
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```json
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{"light": 5424, "moisture": 30, "temperature": 21.4, "conductivity": 1020, "battery": 100}
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```
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This data can be subscribed to and processed by other applications, like [Home Assistant](https://home-assistant.io) or [openHAB](https://openhab.org).
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Enjoy!
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----
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#### Disclaimer and Legal
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> *Xiaomi* and *Mi Flora* are registered trademarks of *BEIJING XIAOMI TECHNOLOGY CO., LTD.*
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>
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> This project is a community project not for commercial use.
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>
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> This project is in no way affiliated with, authorized, maintained, sponsored or endorsed by *Xiaomi* or any of its affiliates or subsidiaries.
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