this post was submitted on 13 Jul 2023
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Automating roller blinds (aussie.zone)
submitted 1 year ago by Psiczar@aussie.zone to c/homeassistant@lemmy.world
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I have 2 windows/doors in my living room which have 3 roller blinds each (6 in total) that I'm in the process of automating. I have purchased and installed 1 Zigbee motor that goes inside the tube that can lift 4kg using 0.8nm of torque, this is working well and I want to buy the rest. A couple of the blinds are longer and I am considering a 2nm version which can handle 10kg. If install a mix of these motors will they all move at the same rate or will they operate at different speeds?

When I press the button I want all of the blinds to raise/lower at the same speed.

Any advice appreciated.

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[–] AlternateRoute@lemmy.ca 11 points 1 year ago (1 children)

When I press the button I want all of the blinds to raise/lower at the same speed.

Not even my ikea ones that are all the same size / model rise exactly the same as the start signal from Zigbee sometimes gets to one before another. They go up at around the same rate but start a little off from each other.

[–] Psiczar@aussie.zone 3 points 1 year ago (2 children)

Thanks for the feedback, I didnt realise this was unrealistic.

[–] CmdrShepard@lemmy.one 5 points 1 year ago (1 children)

I think it is realistic but to achieve that you'd need to spend a ton of extra money for a out of the box commercial solution. I have the ikea shades as well and it doesn't really bother me too much if they raise at different rates. I set them to open to a specific percentage so they all wind up in the same spot anyways.

[–] AlternateRoute@lemmy.ca 1 points 1 year ago

I agree, there are some blinds that use different protocols, use different motors etc that should be able to do this but probably at x2-x3 the cost or more.

[–] Nawor3565@lemmy.blahaj.zone 2 points 1 year ago

If having them all raise/lower the same is unrealistic, maybe you could make a script that starts each one moving with a delay to create a staggered effect? It would still look visually pleasant IMO without the difficulty of syncing up different motors.