letsg0fishin
- May 25, 2014
- 3
- Joined
- May 25, 2014
- Messages
- 3
I am wanting to build a 12 volt automated chicken coop door. I am planning to use a photo cell to activate the door, what I need help with is a circuit that will turn the motor one way while the photo cell is receiving light and reverse polarity when it isn't. I am going to put limit switches at the top and bottom to stop over travel, but the photocell switch (or relay?) has me stumped.