how to make an automatic paper towel dispenser?
I'm trying to build my own, but I'm not exactly sure how it works. I currently have a 12v power source, a PIR sensor, and a 12v motor. I've read online to try to figure some things out and a came across a set reset flip flop. i figured this will make the motor run then stop and reset the circuit. but when i try to connect everything nothing happens. in its simplest form i want it to dispense for probably about 3-5 seconds then turn off. is there an easier way to achieve this?