homeassistant

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Home Assistant is open source home automation that puts local control and privacy first. Powered by a worldwide community of tinkerers and DIY enthusiasts. Perfect to run on a Raspberry Pi or a local server. Available for free at home-assistant.io

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Variable Position Damper Control (sh.itjust.works)

submitted 9 months ago by [email protected] to c/[email protected]

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I have to preface by saying that this isn't really related to Home Assistant. I can't find a more generic home automation community on Lemmy and I figured someone here might have some experience with this so I hope is post is allowed.

I have a large masonry fireplace that I'm fixing some issues with. It has a fresh air intake that I'm venting outside the house. Code says the air intake also has to have a damper which can be closed to prevent the fire from burning out of control.

I'm planning to use a 24 volt power open/power close damper. I want to be able to modulate it with a wall control where it can be set in increments somewhere between 0% and 100% open. I'm sure I could engineer a creative solution but I wanted to see if anyone else had a simpler way of accomplishing this first.

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[–] [email protected] 3 points 9 months ago

Be aware that an underpowered or stuck stepper motor can "skip", causing the position data to be incorrect.

A servo motor has active feedback, so doesn't have this issue. Servos do have their own drawbacks too, so they are not always a suitable replacement.