These mitsubishi electric AC units update the energy used every 0.1 kWh but don't give an instant power figure.

I added a new sensor for estimated power by taking the difference between current energy and last reported then dividing by the elapsed time. There's some safe guards to keep the values reasonable.

Today's aircon adventures:

1. Switched the dining room cassette to "normal" airflow, which is more downwards. For some reason "up", not "normal", is the default.

2. Made a little remote temp sensor with an ESP32 and a Temp+RH module for the dining room. I've got this configured on the indoor unit's ESP32 adapter. I'm now testing to see how it behaves.

TIL you can simulate esphome LVGL displays

#esphome

Since blogging is dead I thought it was the perfect time to blog.

I've been slowing making my personal site a blog and back filling posts like this one https://sjtrny.com/posts/2026-05-26-heat-pump-hot-water-wi-fi-adapter/

Sound up to hear the purrs 🐈

#cat