Yes, you can connect it to Homey. You should write some code to send a request to https://webhook.homey.app/[cloudid]/airquality?tag=[value].
Replace [cloudid] with your Cloud ID (you can find that in More→Settings→General in the Homey mobile app) and replace [value] with the value from your air quality sensor. You can then create a Flow like this:
You can also use a Virtual Device instead of a variable. You can repeat this process for the separate values from the sensor (simply change the event).
To perform actions on the ESP32, you can make a HTTP server on the ESP32 and make web requests to that server from Homey using this Flow card:
The display will most likely be supported by ESPHome, but not by Homey. There’s probably also no two-way communication between ESPHome and Homey possible, only one-way (from ESP32 to Homey).
But there aren’t really any alternatives that are easy to implement. Using webhooks as suggested by @smarthomesven is also one-way, plus it’s pretty basic.
Eventually you will have to code what’s being displayed on screen yourself, either with ESPHome or with a low-level library like LVGL (which ESPHome also supports, and in a much more friendly way that having to deal with low-level LVGL library calls).
I recently build a Ring Intercom replacement using an ESP32-C6 EVB. It was a bit of a painful process to set the environment up (but Claude helped a lot), and in the end I was able to create a Matter over Thread device (via esp-matter). ESPHome is still a lot easier to setup and I hope they add proper Matter support at some point, but if you are somewhat familiar with programming those boards, then going straight for Matter can be a great alternative, as you can use it in any eco system.
There’s already a pretty decent Zigbee component for ESPHome (the author of which is also working on finalising official ESP32 Zigbee support in ESPHome) which I’m running on some ESP32C6’s. So far, it’s been very reliable.
Sure, and you can also use something like MQTT for that, but the native ESPHome protocol provides much better integration, including REQ/REP, calling automations running on the ESP32 (including passing data), etc.
Plus you get a more tightly integrated device, with all sensors/actuators/etc grouped into one device. Although I’m not sure how much of those features are supported by the Homey ESPHome app (my experience is based on Home Assistant).
The ESPHome app is not maintained, and open for dev transfer (Athom seemed to be interested);
As result it doesn’t work with boards using newer ESP firmwares ( after May 2024).
