54696d21/miflora-platformio

Mi Flora Bridge via ESP32

Mi Flora Bridge

This arduino sketch implements an ESP32 BLE client for XIaomi Mi Flora Plant sensors, pushing the meaasurements to an MQTT server.

It is a direct copy of this repository by sidddy, made to effortlessly build with platformio.

Things you definitly need to change in the config.h

• the MAC adress of your flora device
• your wifi name
• your wifi password
• your mqtt host adress
• your mqtt password

Technical requirements

Hardware:

• ESP32
• Xiaomi Mi Plant Sensor (firmware revision >= 2.6.6)

Software:

• MQTT server

Measuring interval

The ESP32 will perform a single connection attempt to the Xiaomi Mi Plant sensor, read the sensor data & push it to the MQTT server. The ESP32 will enter deep sleep mode after all sensors have been read and sleep for X minutes before repeating the exercise... Battery level is read every Xth wakeup. Up to X attempst per sensor are performed when reading the data fails.

Configuration

• SLEEP_DURATION - how long should the device sleep between sensor reads?
• EMERGENCY_HIBERNATE - how long after wakeup should the device forcefully go to sleep (e.g. when something gets stuck)?
• BATTERY_INTERVAL - how ofter should the battery status be read?
• RETRY - how ofter should a single device be tried on each run?

Credits

• sidddy
• Many thanks go to the guys at https://github.com/open-homeautomation/miflora for figuring out the sensor protocol.