Xiaomi Mijia BLE Temperature Sensor No Longer Reporting

ESPHome
1

Hi, I have an issue that has suddenly came about and I’m not sure what else to try to fix it.

I have two flashed, have been working fine for months and now suddenly one of them just won’t report. I’ve changed nothing so I’m not sure what has caused it.

I have tried to get it working again but with no success, I can see in the logs the following but nothing ever reports and yes the temperature has been changing loads so it should be reporting…

[13:38:23][D][esp32_ble_tracker:719]: Found device A4:C1:38:23:06:B5 RSSI=-88
[13:38:23][D][esp32_ble_tracker:740]:   Address Type: PUBLIC
[13:38:23][D][esp32_ble_tracker:742]:   Name: 'ATC_2306B5'

The one that is working I see this, but not for the one that’s not;

[13:33:20][D][xiaomi_ble:313]: Got Xiaomi LYWSD03MMC (A4:C1:38:07:93:10):
[13:33:20][D][xiaomi_ble:316]:   Temperature: 20.5°C
[13:33:20][D][xiaomi_ble:319]:   Humidity: 38.0%
[13:33:20][D][sensor:113]: 'Hall Temperature': Sending state 20.50000 °C with 1 decimals of accuracy
[13:33:20][D][sensor:113]: 'Hall Humidity': Sending state 38.00000 % with 0 decimals of accuracy

Here is my yaml (unchanged from when it was working, blanked out passwords etc with #)

esphome:
  name: home
  platform: ESP32
  board: mhetesp32devkit

wifi:
  ssid: myssid
  password: #####
  manual_ip:
    static_ip: 192.168.0.90
    gateway: 192.168.0.1
    subnet: 255.255.255.0

  # Enable fallback hotspot (captive portal) in case wifi connection fails
  ap:
    ssid: "Home Fallback Hotspot"
    password: "#####"

captive_portal:

# Enable logging
logger:

# Enable Home Assistant API
api:
  # password: "#####"

ota:
  # password: "#####"

esp32_ble_tracker:

sensor:
  - platform: xiaomi_lywsd03mmc
    mac_address: A4:C1:38:23:06:B5
    bindkey: "05e04076be48f427f3d90e166d0fbd5e"
    temperature:
      name: "Bedroom Temperature"
    humidity:
      name: "Bedroom Humidity"
    battery_level:
      name: "Bedroom Battery Level"
  - platform: xiaomi_lywsd03mmc
    mac_address: A4:C1:38:07:93:10
    bindkey: "05e04076be48f427f3d90e166d0fbd5e"
    temperature:
      name: "Hall Temperature"
    humidity:
      name: "Hall Humidity"
    battery_level:
      name: "Hall Battery Level"

The one that’s not working is the “Bedroom” one. Any help would be great, thanks!

2

One have original firmware, other ATC firmware

For ATC you dont need bindkey
For the other bindkey may have changed

Anyway for ATC

  - platform: atc_mithermometer
    mac_address: A4:C1:38:xxx
    temperature:
      name: "MMC E3 Temp"
    humidity:
      name: "MMC E3 Hum"
    battery_level:
      name: "MMC E3 Batt"
3

Both of them were flashed and have been working like this for months, what’s changed that means I’ve got to change it all?

4

20211202_223334
20211202_2233341080×900 177 KB

https://atc1441.github.io/TelinkFlasher.html

5

I’ve done this before and it was working. I’ve tried it again not but still with no luck.

6

I have the same problem. After updating to esphome 2021.11.4, values from the BLE-Tracker won’t be forwarded to HA. My second Gateway with esphome 1.18. is still working without any problems.

1 Like
7

Same here. Did you managed to solve it? Any suggestions?
Thanks!

8

I am also having this same issue. Have 12 units which have slowly been dropping off and not returning.