How to integrate Buderus KM271 serial data device into HA

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Buderus Logamatic 2107 KM271 Replacement with WiFi using ESP32 and ESPhome

Hi all, about a year ago, I created a piece of hardware that directly fits into the extension socket of a Buderus Logamatic 2107 control unit. This hardware simply attaches to the internal serial bus of the Logamatic and fetches the values it provides. [image] I now ended at version 0.0.5 and it works perfectly. I also started a ESPhome component and got help from two guys that bought the module from my Tindie store. Since many people got interest on the board through a post on my blog and I…

and if you are only interested in the basic functions:

Buderus Logamatic 2107 KM271 Replacement with WiFi using ESP32 and ESPhome

Hi Juan, most options are for the more experienced power users that want to do the wired stuff with the board. If you just want to link it to your Home Assistant and ESPhome, only selecting the Firmware = ESPhome. Then you just need to insert it in the Buderus and follow the description about ESPhome on the following page: Regards, Daniel