How to activate MI32 sensor?

[vrilcode]

I have a LYWSD03MMC temperature and humidity sensor flashed with alternative firmware ATC v5.4. I can see it in the list of BLE devices and I have setup the bind key with MI32Key command on the console. I don't see any sensor data on the console after that. Is there anything else to do?

[tuxbox]

Usually it prints out data every 5 min in console. do you see it on the web ui?

[tuxbox]

do you have tasmota32-bluetooth.bin flashed on the tasmota device and bluetooth is enabled and run an active scan? do you see the sensors when you open the flashing web site again? usually with ATC MI32Key should also be irrelevant as it sends everything unencrypted.

[vrilcode]

I have flashed a firmware compiled with TasmoCompiler with Bluetooth enabled and #define USE_MI_HOMEKIT. I can see the device in BLE section of Tasmota web UI and on the console:

20:51:48.018 RSL: BLE = {"Time":"2025-10-28T20:51:48","BLEDevices":{"total":2,"A4C136F0A4B1":{"i":0,"n":"ATC_F0D3D9","r":-56},"C09A1BA461CC":{"i":1,"r":-93}}}
20:51:48.023 RSL: BLE = {"Time":"2025-10-28T20:51:48","BLE":{"scans":4074,"adverts":1235765,"devices":2,"resets":0}}

Active scan is disabled at the moment. I thought it's not needed. I've enabled it now, but it doesn't seem to make any difference.

[tuxbox]

this should usually work and worked out of the box for me to pick up the sensors. Though I am using the original firmware on the sensors.
https://ota.tasmota.com/tasmota32/release/tasmota32-bluetooth.bin

That has also the MI32 stuff included.

[vrilcode]

this should usually work and worked out of the box for me to pick up the sensors. Though I am using the original firmware on the sensors. https://ota.tasmota.com/tasmota32/release/tasmota32-bluetooth.bin

That has also the MI32 stuff included.

I can't install this firmware, because my hardware is ESP32-S3. But when I switch the advertising format in TeLink Flasher to "Mi" it works (before I had "BTHome v2" advertising format).

[sfromis]

You can find tasmota32s3-bluetooth.bin among the "unofficial" development builds here:
https://github.com/tasmota/install/tree/firmware/firmware/unofficial