I have been using the Honeywell Evohome system in our house for multi-zone underfloor heating since it’s we’ve moved in. I’ve also been having issues with this system since that time and it’s cost me a lot of work to get it to do what it should do and I’m really fed up with it!
This video is the first step into replacing that system! In this video we’re going to set up an easy to configure and cheap multi-room temperature sensing system with Home Assistant at its heart.
Video about setup
This post is the text portion that accompanies the main part which is in the video, please watch it first, the video refers to this blog post where needed!
Xiaomi Mijia Temperature and Humidity sensor: https://geni.us/Tr2RpJH
ESPhome is the awesome software used to achieve the Bluetooth -> Home Assistant bridging of the temperature, humidity and battery level data.
It’s an easy way to create firmware that runs on an ESP8266 or ESP32.
Check it out on https://esphome.io !
During the video I refer to the following bits:
esphome: name: 'vidtemp' platform: ESP32 board: mhetesp32devkit wifi: ssid: 'WIFI SSID' password: 'WIFI PASSWORD' api: web_server: port: 80 logger: ota: password: 'OTA PASSWORD' # Enable Bluetooth scanning for this ESP32 esp32_ble_tracker:
Remember to change the name to the name you also used in ESPhome and change the WiFi SSID, WiFi PASSWORD and OTA PASSWORD to what you are using in your configuration!
For the full configuration we only add to the above configuration. So paste the following below what was already there:
sensor: - platform: xiaomi_mijia mac_address: XX:XX:XX:XX:XX:XX temperature: name: "Sensor_1 Temperature" humidity: name: "Sensor_1 Humidity" battery_level: name: "Sensor_1 Battery Level" - platform: xiaomi_mijia mac_address: XX:XX:XX:XX:XX:XX temperature: name: "Sensor_2 Temperature" humidity: name: "Sensor_2 Humidity" battery_level: name: "Sensor_2 Battery Level"
Here you will need to replace the XX:XX:XX:XX:XX:XX with the actual MAC addresses of the Xiaomi Mijia meters. In the video I show how to do this using the scanner configuration.