How would I design a device to raise/close my blinds when there is light vs no light? I realize that a photocell will need to be incorporated to sense light, along with an H bridge to make the DC motor spin both directions. But I am pretty new to arduinos and circuits in general, is it possible to tell the arduino how long to provide power to the motor (to account for the height of the shades)? Another issue I think might be a problem is that the motor I have requires little force to spin freely, will the shades simply fall back down from their weight? Any advice will help. My shades are simply a sheet tacked on top of the window, I figured I would attach a string to the bottom of it and use the motor at the top of the window to wind up that string.
Any suggestions as to how to get started would help, thanks!
a worm gear is self locking.
slow and powerful.
Built something similar: one end has a geared DC motor, and the other end has an EC11 encoder (Ebay, approx. 0.50$ ea)
I used a Nano to control everything !
Would you mind describing a bit more in depth about how your circuitry worked?