Wall Heater Tamer (using StopLight Controller)
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Build a better mouse trap with a 28BYJ-48 actuated wall heater
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- Printables
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- Other Gadgets
- Licencja
- GNU General Public License v3.0
I live with an older, rip-roaring wall heater. It comes on slowly, but once it gets going, it doesn't know when to stop.
I don't mind adjusting it, but I can't do that so well while I'm sleeping, so I wanted to make something that could help.
This project mounts a 28BYJ-48 stepper motor onto the wall heater. It connects to the knob of the heater with a meshing gear that was pretty easy to model and fits with a surprisingly rewarding snugness. The magic happens in esphome's pid sensor, which syncs the stepper position with the pid climate controller in a on_value trigger.
It's unlikely that many people will have this exact model heater and be able to use the model directly. However, when I started trying to find a way to automate the heater with a motor, I couldn't find any examples.
It's pretty cheap to build. I used a spare stepper I already had in a drawer left over from my blinds, a StopLight shield, and a Seeed Xiao esp32c3 I had sitting around. Make sure to do the bipolar mod on the 28BYJ-48.
I printed in PolyMaker PolyLite ASA.
For the esphome sketch, see this heater.yaml. StallGuard is now working with the StopLight shield, will update heater.yaml shortly…