Hello all,
I am trying to make a switch with a transistor that is controlled by a 3v source. I have a device that when it senses motion, it turns on 3v on a pin. I want to take that 3v and make the other side of the circuit go from a closed circuit to open.
I assume that a transistor would be the best bet for this, and I've figure out how to take an NPN transistor and go from open to closed with the 3v input being turned on the base. However, I'm trying to figure out how to go from closed to open with the same 3v input to the base. Any thoughts?
I am trying to make a switch with a transistor that is controlled by a 3v source. I have a device that when it senses motion, it turns on 3v on a pin. I want to take that 3v and make the other side of the circuit go from a closed circuit to open.
I assume that a transistor would be the best bet for this, and I've figure out how to take an NPN transistor and go from open to closed with the 3v input being turned on the base. However, I'm trying to figure out how to go from closed to open with the same 3v input to the base. Any thoughts?