lywsd03mmc AttributeError passive

Describe the bug When added 2 lywsd03mmc getting error when start deamon lywsd03mmc running custom firmware and advertising type set to custom Config

manager:
  sensor_config:
    topic: homeassistant
    retain: true
  topic_subscription:
    update_all:
      topic: homeassistant/status
      payload: online
  command_timeout: 120
  workers:
    lywsd03mmc:
      args:
        devices:
          657: A4:C1:38:04:E6:57
          54E: A4:C1:38:A2:D5:4E
        topic_prefix: mijasensor_gen2
      update_interval: 240
      passive: false

Debug gateway logs run gateway.py with -d switch and paste formatted output log

2021-01-05 00:22:32,446 DEBUG bt-mqtt-gw.workers_manager workers_manager.py:83:register_workers - Added thermostat config with a 2 seconds timeout
2021-01-05 00:22:32,451 DEBUG bt-mqtt-gw.workers_manager workers_manager.py:93:register_workers - Added thermostat worker with 240 seconds interval and a 120 seconds timeout
2021-01-05 00:22:33,551 INFO bt-mqtt-gw.workers.lywsd03mmc lywsd03mmc.py:15:_setup - Adding 2 lywsd03mmc devices
2021-01-05 00:22:33,553 INFO bt-mqtt-gw.workers.lywsd03mmc lywsd03mmc.py:18:_setup - Adding lywsd03mmc device '657' (A4:C1:38:04:E6:57)
Traceback (most recent call last):
  File "./gateway.py", line 83, in <module>
    manager.register_workers(global_topic_prefix)
  File "/home/pi/bt-mqtt-gateway/workers_manager.py", line 78, in register_workers
    command_timeout, global_topic_prefix, **worker_config["args"]
  File "/home/pi/bt-mqtt-gateway/workers/base.py", line 9, in __init__
    self._setup()
  File "/home/pi/bt-mqtt-gateway/workers/lywsd03mmc.py", line 19, in _setup
    self.devices[name] = lywsd03mmc(mac, timeout=self.command_timeout, passive=self.passive)
AttributeError: 'Lywsd03MmcWorker' object has no attribute 'passive'

Server (please complete the following information):

• Distro: Raspbian

[pvvx]

The format is expected to change to new “HA_BLE” in newer versions when it becomes available in Home Assistant. Participate in Support home brew DIY sensors After the formation of a new version, the format ATC1441 will no longer be supported.

[sorenbache]

There is something wrong for sure with the calculation of the temperature when the temperature goes below zero (not sure about the exact value). I am running passive mode with the ATC firmware from @pvvx, with advertising mode set as atc1441.

2021-01-28 22:15:47,346 DEBUG bt-mqtt-gw.workers.lywsd03mmc lywsd03mmc.py:39:status_update - a4:c1:38:8f:ea:f5 - received scan data 1a18a4c1388feaf500e5285c0bd6de 2021-01-28 22:15:47,347 DEBUG bt-mqtt-gw.workers.lywsd03mmc lywsd03mmc.py:39:status_update - a4:c1:38:35:90:c4 - received scan data 1a18a4c1383590c4ffe452440b0414 2021-01-28 22:15:47,348 DEBUG bt-mqtt-gw.workers.lywsd03mmc lywsd03mmc.py:87:readAll - a4:c1:38:8f:ea:f5 - found values 22.900000, 40, 92 2021-01-28 22:15:47,349 DEBUG bt-mqtt-gw.workers.lywsd03mmc lywsd03mmc.py:87:readAll - a4:c1:38:35:90:c4 - found values 6550.800000, 82, 68

So the data with temperature ‘ffe4’ gets converted to a temp of 6550.800000. The calculation seems wrong:

int(data[16:20], 16) / 10

Compare this with the calculation that is done in this https://github.com/JsBergbau/MiTemperature2 where it works fine:

temperature = int.from_bytes(bytearray.fromhex(data[16:20]),byteorder='big',signed=True) / 10.

@westenberg