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How do roller shade motors work? (Convert a non-motorized shade to smart) (www.zemismart.com)
submitted 5 days ago by to c/homeassistant@lemmy.world
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I've taken one of my shades down, and it's a 38mm diameter aluminum tube with one keying notch. Looking at motorizing them, I found lots of recommendations for the Zemismart roller motors in HA forums. What I don't get is how they fit?

I pulled the spring mechanism out of one end of the tube, but it looks like the zemismart tube needs to fit all the way inside my current tube, which it won't. The diagram on the website says their tube is 17" long (436mm), which is half as wide as my window. I don't see different lengths for sale.

What am I missing? Do the motor tubes extend? Do they only shove halfway down inside the roller tube? The example videos in their store all show windows wider that 17" ...

I'm so confused!

I'm also unsure about the "Tuya ZigBee" label. I can still use these with my current ZigBee setup, can't I?

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[–] 7 points 5 days ago* (last edited 5 days ago) (1 child)

You don’t need the tube to extend the whole width, the important thing is that the motor is well secured in its place and the roller tube well secured to the motor.

Regarding tuya, I don’t know about their rollers, but I have some “Tuya Zigbee” sensors and I connect them directly to my HA with zigbee.

EDIT:

I found this video (from minute 3:00), the motor has hexagonal ends that fit the hexagonal roller tube. https://youtu.be/_NIK2xk5JfY?t=180

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    • [–] 2 points 5 days ago (7 children)

    I have used the zemismart ones. Essentially one end fits into the cross of the bracket and holds the frame. The motor inside the tube turns the small piece inside the tube.

    In essence, the blind tube rotates around the blue tube you can see.

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  • [–] 2 points 4 days ago (3 children)

    I've been considering getting roller blinds myself. So if I want them to be in HA, I just need to buy one of these zemismart things and then buy blinds that fit over it?

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  • [–] 2 points 3 days ago

    My understanding is that most roller blind tubes are hollow, so it’s just a case of buying a bound motor that sits inside them. There are also some that pull the beaded rope thingy but I’ve never used those

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  • [–] [S] 1 point 5 days ago* (2 children)

    Oh! The spiky end is to catch the key in the middle of the outer blind tube! Got it.

    And did you need a new Tuya gateway, or what did you use?

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    • [–] 2 points 5 days ago (1 child)

    We're renting and I'm using the Aqara Roller Shade Drivers as a non-invasive method that's also easy to remove again when moving out.

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