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I live in an apartment where I cannot change anything. I would like to have my blinds open/close via computer (any interface controllable via RPi/Arduino is fine). It's not required to also roll them up/down but would be nice.

The blinds are rolled up/down via a cord, as usual. They can be open/closed via a "stick" that's rotated. My blinds look like this:

Window blinds

I could image attaching a small rotating motor to the stick to open/close the blinds could do the job.

I found many solutions which require to change the blinds. Is there a project/solution which just attaches a small machine to the wall next to the window and has an arm to open/close the blends?

  • The blinds you have are most likely inexpensive aluminum or plastic types and are not worth the expense of what you're asking. – cathode Apr 1 '15 at 18:18
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A stepper motor driver (shield, I suppose, in Arduino speak) a couple of stepper motors (if you want both functions) and a modest amount of creativity should do it.

The open/close motor could be fitted with a section of rubber hose to slip onto the handle - the up/down one would need a pulley or spool (as for sewing thread) to roll the cord up.

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