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please help make simple timed curtain puller Answered

my idea for a simple curtain puller is to have a motor on a timer, the motor turns on and winds a cord/string that loops around the curtain, pulling it to the side.  The part that I need help on is turning the motor off when the string is sufficiently coiled, so either it would be set for a certain time/number of rotations/ or amount of resistance.


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5 years ago

Mount a circular fang on the cord and set up a limit switch at the end of the curtain draw. When the curtain is fully open that flange will hit the switch. Use an arduino or other micro controller to run the motor. When it detects the switch it stops the motor.