MHI-AC-Ctrl VS esphome-mitsubishiheatpump

Yep, I'm relatively new to Home Assistant but love it. Combined with ESPHome, I've got most of the lights in my house controlled (via switch changes, not smart bulbs), and my all my air conditioners via the MHI-AC-Ctrl project[1,2] (which is fantastic - ordered the boards from JLC-PCB, parts from Ali-Express, told ESPHome to program everything and plugged them into the ports and...it all just worked!).

Just got a Mitsubishi Electric (which is different to MHI) and a Daikin at my parents house to get online - but code for both exists and I suspect the MHI boards can be reprogrammed to fulfill the role without any hardware changes.

It's incredible that the future we wanted in like, 2010 can be had and had without selling your soul to the cloud: I can leave the house, and turn off all my lights and AC's while walking out the door, or get notified if I've left my garage open - without a single cloud provider dependency, all open-source.

[1] https://github.com/absalom-muc/MHI-AC-Ctrl/

[2] https://github.com/ginkage/MHI-AC-Ctrl-ESPHome

https://github.com/absalom-muc/MHI-AC-Ctrl Although Mitsubishi HI (heavy industries) is a different company to Mitsubishi so may not work

Controlling Mitsubishi mini split heat pumps instead of paying hundreds for Mitsubishis solution: https://github.com/geoffdavis/esphome-mitsubishiheatpump

DIY Plug in: this Github Project describes a way to diy a plug in connection running on ESPhome for a few $ of parts, but I'm a bit of a novice and don't know how I would connect this to Homekit.

If you Home Assistant or ESPHome, this is the jam. https://github.com/geoffdavis/esphome-mitsubishiheatpump

Highly likely you're experiencing a watchdog error on an idle core. The only way to know for sure is to enable logger, which will be a challenge here. You can see an example here., but this is a widely reported and poorly understood issue.

If you can add homeassistant, you should look at https://github.com/geoffdavis/esphome-mitsubishiheatpump -- we're using it with 5 split units. It works great, is faster than infrared, and cheaper than the wired or wireless control options from Mitsubishi.

If your Mitsubishi uses IR for it's remote, this probably would work: https://github.com/geoffdavis/esphome-mitsubishiheatpump

Or, you can use a Broadlink IR blaster to clone the remote.

If your heat pump talks to MEL cloud (Mitsubishi's cloud thingy) then this should work: https://www.home-assistant.io/integrations/melcloud/

I have yet to buy a "smart" device that I haven't been able to control through HA. The Broadlink RF/IR bridges even makes anything with a remote automatable.

Seriously, If it wasn't for Home Assistant, the "smartness" of smart devices would be next to useless.