Xiaomi
Xiaomi LYWSD03MMC temperature sensor (custom firmware)
Sensors · Security
WorksLocal
1 report: 1 says it works.
Reported with 2 integrations: ESPHome, MQTT.
What people report
| Integration | In Home Assistant | In Apple Home | What they said | Source |
|---|---|---|---|---|
| ESPHome MQTT | Works Local | BLE flash relayed by ESPHome; later Zigbee firmware works with Z2MSaved copyMy favorite is the ble bridge. The Xiaomi temperature and humidity sensors can be flashed with open firmware and report temp and humidity over BLE. The esphomes can relay that to Home Assistant and you have a cheap network of sensors that can run more than 6 mo on a button battery. Excerpt saved from the Arctic Shift Reddit archive on 2026-10-23. | Reddit comment · 2024-04 |
Each row is one report from a GitHub thread, an integration’s docs, or r/homeassistant. Check the date and the linked source before you buy.
In ReReHome
Once Home Assistant’s HomeKit Bridge shares it, this device reaches Apple Home as a HomeKit accessory behind your Home Assistant bridge, so ReReHome shows and controls it like any other.
Identifiers
| Brand | Xiaomi |
|---|---|
| Category | Sensors |