Mi Flora Max Support

[DarkByteZero]

I tried to get data from the new Mi Flora Max with firmware version 3.6.6. Unfortunately, it did not work. Is this new version supported or have I done something wrong?

LOG:
Sat, 06 Aug 2022 15:17:42 ERROR could not read data from C4:7C:8D:6D:59:3F (flora_1) with reason:
Traceback (most recent call last):
File "/usr/local/lib/python3.9/dist-packages/btlewrap/bluepy.py", line 27, in _func_wrapper
return func(*args, **kwargs)
File "/usr/local/lib/python3.9/dist-packages/btlewrap/bluepy.py", line 75, in read_handle
return self._peripheral.readCharacteristic(handle)
File "/usr/local/lib/python3.9/dist-packages/bluepy/btle.py", line 529, in readCharacteristic
self._writeCmd("rd %X\n" % handle)
File "/usr/local/lib/python3.9/dist-packages/bluepy/btle.py", line 302, in _writeCmd
raise BTLEInternalError("Helper not started (did you call connect()?)")
bluepy.btle.BTLEInternalError: Helper not started (did you call connect()?)

The above exception was the direct cause of the following exception:

Traceback (most recent call last):
File "/usr/local/lib/python3.9/dist-packages/plantgw/plantgw.py", line 263, in process_all
self.process_mac(sensor)
File "/usr/local/lib/python3.9/dist-packages/plantgw/plantgw.py", line 241, in process_mac
self._publish(sensor_config, poller)
File "/usr/local/lib/python3.9/dist-packages/plantgw/plantgw.py", line 213, in _publish
MQTTAttributes.BATTERY.value: poller.parameter_value(MI_BATTERY),
File "/usr/local/lib/python3.9/dist-packages/miflora/miflora_poller.py", line 149, in parameter_value
return self.battery_level()
File "/usr/local/lib/python3.9/dist-packages/miflora/miflora_poller.py", line 119, in battery_level
self.firmware_version()
File "/usr/local/lib/python3.9/dist-packages/miflora/miflora_poller.py", line 128, in firmware_version
res = connection.read_handle(_HANDLE_READ_VERSION_BATTERY) # pylint: disable=no-member
File "/usr/local/lib/python3.9/dist-packages/btlewrap/bluepy.py", line 33, in _func_wrapper
raise BluetoothBackendException() from last_error
btlewrap.base.BluetoothBackendException

[DarkByteZero]

Example with demo.py:

pi@plantgateway:~ $ sudo python demo.py --backend bluepy poll XX:XX:XX:XX:XX:XX
Getting data from Mi Flora
DEBUG:miflora.miflora_poller:Received result for handle 56: 64 53 33 2E 36 2E 36
FW: 3.6.6
Name: Grow care garden
DEBUG:miflora.miflora_poller:Filling cache with new sensor data.
DEBUG:miflora.miflora_poller:Received result for handle 53: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
Traceback (most recent call last):
File "/home/pi/demo.py", line 142, in
main()
File "/home/pi/demo.py", line 138, in main
args.func(args)
File "/home/pi/demo.py", line 40, in poll
print("Temperature: {}".format(poller.parameter_value(MI_TEMPERATURE)))
File "/usr/local/lib/python3.9/dist-packages/miflora/miflora_poller.py", line 168, in parameter_value
raise BluetoothBackendException("Could not read data from Mi Flora sensor %s" % self._mac)
btlewrap.base.BluetoothBackendException: Could not read data from Mi Flora sensor XX:XX:XX:XX:XX:XX

[ThomDietrich]

Could you clarify which device you are talking about?
https://www.google.com/search?q=Mi+Flora+Max

[DarkByteZero]

Xiaomi HHCC Mi Flower Care Plant Sensor Max
https://www.techpunt.nl/en/xiaomi-hhcc-mi-flower-care-plant-sensor-max.html?gclid=Cj0KCQjworiXBhDJARIsAMuzAux9hI_KRIh2B7IK5UOW0pzWWzLLExTK75GUVELdgqPfJwyu7irxemIaAmhdEALw_wcB

[jvoosten]

Yup, got the same problem. The larger version uses a different MAC address range, even though it seems to be the same chip (Dialog DA14580). It announces itself as the "Grow care garden" with firmware version 3.6.6 (not 3.3.6!) but fails to respond. The trace below first polls a small sensor, then the big one:

INFO:__main__:Start webserver
INFO:web_server:Received command /status/5C:85:7E:xx:xx:xx
DEBUG:web_server:Fetching status
DEBUG:miflora.miflora_poller:Filling cache with new sensor data.
DEBUG:miflora.miflora_poller:Received result for handle 56: 64 39 33 2E 33 2E 36
DEBUG:miflora.miflora_poller:Received result for handle 53: D2 00 03 FE 00 00 00 1F 01 06 02 3C 00 FB 34 9B
192.168.243.64 - - [22/May/2024 21:09:46] "GET /status/5C:85:7E:xx:xx:xx HTTP/1.1" 200 -
INFO:web_server:firmware version = 3.3.6
DEBUG:miflora.miflora_poller:Using cache (0:00:00.002857 < 0:10:00)
DEBUG:miflora.miflora_poller:Using cache (0:00:00.003224 < 0:10:00)
DEBUG:miflora.miflora_poller:Using cache (0:00:00.003420 < 0:10:00)
DEBUG:miflora.miflora_poller:Using cache (0:00:00.003584 < 0:10:00)

INFO:web_server:Received command /status/C4:7C:8D:yy:yy:yy
DEBUG:web_server:Fetching status
DEBUG:miflora.miflora_poller:Filling cache with new sensor data.
DEBUG:miflora.miflora_poller:Received result for handle 56: 62 53 33 2E 36 2E 36
DEBUG:miflora.miflora_poller:Received result for handle 53: 1A 01 5D 80 8F 04 00 00 00 00 00 00 00 00 00 00
192.168.243.64 - - [22/May/2024 21:11:43] "GET /status/C4:7C:8D:yy:yy:yy HTTP/1.1" 200 -
INFO:web_server:firmware version = 3.6.6
DEBUG:miflora.miflora_poller:Using cache (0:05:00.002456 < 0:10:00)
ERROR:web_server:BT exception raised: ('Could not read data from Mi Flora sensor C4:7C:8D:yy:yy:yy',)
192.168.243.64 - - [22/May/2024 21:11:43] code 500, message Communication error: ('Could not read data from Mi Flora sensor C4:7C:8D:yy:yy:yy',)
192.168.243.64 - - [22/May/2024 21:11:43] "GET /status/C4:7C:8D:yy:yy:yy HTTP/1.1" 500 -

The Android app works of course, so I guess it reacts to different commands. Suggestions on how to debug the Bluetooth traffic?

[DarkByteZero]

@jvoosten You can use my fix, it will work with it. If you want to debug, you could run the program with a debugger and observe the variables. I did this.

[jvoosten]

@jvoosten You can use my fix, it will work with it. If you want to debug, you could run the program with a debugger and observe the variables. I did this.

Yes, the delay works. I made a slightly improved version that checks for the firmware version and adds the delay when necessary.

And what I meant by debugging is sniffing the traffic between the official app and the sensor, not this Python code.