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I want to open the window to let the cat enter or go out, but the mecanism of the window may me think that the best way should be to use a jack/cylinder (I don't know what term is more appropriate in english for that) to open and close the door.

I will use rfid or another wireless think to know it the cat is in the place and then open the wondow but I want to close the window and let the wndow close event if there is little bit of wind, so I need domething robust.

Do you know a good hardware with (this would be the best) piece of code that can help me for that?

Thanks in advance

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Check out this instructable - for opening a window for a cat :) The guy used a servo, Towerpro MG995 with 10 kg torque for opening/closing the window, and a 10cm distance sensor for sensing the cat (he used Pololu Carrier with Sharp GP2Y0D810Z0F Digital Distance Sensor, but I believe that any proximity sensor will do).

This is a pictrure of the mechanism, seems quite robust: enter image description here

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    I think it's safe to say that this would fall under "fair use". Dec 24 '14 at 14:34
  • so @IgnacioVazquez-Abrams you woundn't recommand it? too cheap?
    – clement
    Dec 29 '14 at 7:17
  • @clement: See the revisions of the answer. Dec 29 '14 at 7:53
  • and what about a Actuator? @Ignacio ?
    – clement
    Dec 29 '14 at 11:15
  • Servo is a type of actuator.
    – Omer
    Dec 29 '14 at 11:24

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