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Daikin ESPAltherma and Home Assistant installation

Bash · 2026-06-11T10:45:14Z

I finally have some time to attempt to get ESPAltherma up and running on Home Assistant. I am quite pleased with myself already that I have managed to get some of this completed. I have started to follow the github process, GitHub - raomin/ESPAltherma: Monitor your Daikin Altherma / ROTEX heat pump with ESP32 · GitHub I have a lovely old Dell laptop that wasn't upgradeable to W11 and had an ageing battery. It a very low powered (3w when idle with W10 and the screen off), passively cooled, has 8gb of RAM and a 512GB SSD. So far I have been able to install Home Assistant on the laptop running on ubuntu. The laptop has the black screen with the HA logo in the top left hand corner. I have installed HA on my desktop computer and integrated the Shelly energy meter which is working perfectly. I have installed the HA MQTT vis the HA desktop. I have also purchased and received a (tiny!) M5NanoC6 ESP device which I need to program I assume. I have downloaded and installed Visual Studio Code and installed PlatformIO IDE core. This is as far as I have got and am starting to get a little out of my depth in how to complete the setup! I am a little bamboozled with setting up the M5 ESP device (Getting started - Step 1: Uploading the Firmware). I am not even sure about step 1 "download the repository folder and open it in Platform IO". @majordennisbloodnok Would you be able to help me continue down this rabbit hole?!! As a side note, I'd like to get the laptop screen to timeout as it is constantly on the HA black screen and ideally shut the laptop screen down whilst the HA server continues to run in the background. I am assuming I don't need the screen to be running all the time?! Thanks.

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Air Source Heat Pumps (ASHPs)

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Bash

(@bash)

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Joined: 8 months ago

Posts: 213

Topic starter 17/06/2026 9:56 pm

@majordennisbloodnok

Thanks for the replies. I have only just logged back in after frazzling myself last weekend trying to take the setup further and installing emoncms

I followed speak to the geeks YouTube video, based on Raomin's code, however I think I might have damaged the configuration.yaml file in the process. I cannot now seem to see the historical data of the shelly energy meter that was working perfectly, I can only see the real time data.

I will try again later this week now that I have had a time to recuperate from the head pain of trying to work out where it went wrong!

I am wondering if I should factory reset HA, (if this can be done,) without reinstalling the whole system on the laptop?

This post was modified 3 hours ago by Bash

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