Image: reddit.com · Totally Local, ESPHome Sauna Controller
A local ESPHome sauna controller on an ESP32
A backyard sauna got an ESP32 controller with a 60A contactor, two temperature sensors, lighting and safety cut-outs, designed with help from ChatGPT and Claude.
Credits
- Reddit poster alexlmiller Source ↗
- Repository account alexlmiller Source ↗
Earliest dated source:
The full story
Commercial controllers for a new backyard sauna cost over $1,000 and depended on a cloud app, so the owner learned ESPHome and had ChatGPT and Claude help him design his own. An ESP32-DevKit C switches the heater through a 60A contactor, with ceiling and bench temperature sensors and RGBW lighting.
It has safeties for overheating, a welded relay and the door being left open, and he says the setup cost less than half a commercial unit. Plans and code are on GitHub.
How it was done
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Sources
From a short post by the maker, so the details are as they tell them.
- Reddit: Totally Local, ESPHome Sauna ControllerReddit poster: alexlmillerPosted
The maker's post on r/homeassistant.
If it disappears: archived copy of Reddit: Totally Local, ESPHome Sauna Controller (opens in a new tab)
- The code: github.comRepository account: alexlmiller
The project on GitHub.