You may have noticed that turning the lights on in the room trips the light sensor, which is not good. Therefore, it would make sense to mount the photoresistor outside the house if you haven't done that already.

Your circuit should be easy to modify to include this feature. All you will need to do is extend the length of the wires connecting the photoresistor to the bridge shield.

These wires could then be fed through a window, allowing the Raspberry Pi to be stored inside so that it can be connected to the blinds.

Another motor type we could consider using is a DC stepper motor. A stepper motor divides a full revolution into an equal number of steps. The motor can then be controlled to move through each of these steps and paused at a certain step if needed.

Therefore, you can incrementally wind the curtain cord using...