hi. so if i connect a relay to the gpio17 and ground, then on the other part of the relay i can connect this circuit for the exit button . then when the relay is activated by gpio17 and ground, the 4 volt circuit will be allowed to flow. so the relay i would buy would have to be activated by 3.3 vol...
Hi Joan. Thanks for your reply. I did a multimeter check and there is 4 volts running over the exit circuit. If I connect the two wires on the exit circuit for 1 second, the door motor opens the door. I was hoping to avoid a relay as an additional item if it is possible. However as mentioned, GPIO17...
Hi, I have an exit button on a door motor, and if i join two wires between two inputs on the circuit just briefly, the door motor opens an automatic door. I wanted to control this via the raspberry pi. Initially I tried making sure I could turn a LED on and off as a test, before I went and connected...
Hi, I am new to raspberry Pi. I have a garage door which is powered by a motor. On top of the motor is two pins, when a wire is put between these two pins for half a second and removed, it connects the circuit and sends a signal to open the garage door. The idea of these two pins on the garage door ...