This repository has been archived due to lack of time to properly maintain the code.
This arduino sketch implements an ESP32 BLE client for XIaomi Mi Flora Plant sensors, pushing the meaasurements to an MQTT server.
Hardware:
Software:
1) Copy config.h.example into config.h and update seetings according to your environment:
2) Open ino sketch in Arduino, compile & upload.
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.
Some "nice to have" features are not yet implemented or cannot be implemented:
The sketch does not fit into the default arduino parition size of around 1.3MB. You'll need to change your default parition table and increase maximum build size to at least 1.6MB. On Arduino IDE this can be achieved using "Tools -> Partition Scheme -> No OTA"
Many thanks go to the guys at https://github.com/open-homeautomation/miflora for figuring out the sensor protocol.