I'm an electronics newbie, so pardon the ignorance. I'm building a little circuit that you might call a solid state latching relay, using an N-channel MOSFET. If I momentarily take the gate high, the MOSFET latches on. If I momentarily ground the gate, the MOSFET turns off. So far so good. Now, I want a circuit that will be controlled by remote momentary switch such that a momentary pulse from the switch produces a positive pulse to activate the MOSFET, and another positive pulse from the switch produces a negative pulse to turn the MOSFET off. I've looked at 555 circuits but can't see how I can use a 555 to accomplish this. All the flip flops I've looked at require separate set and reset lines. I just want one input to the circuit...high pulse to turn the MOSFET on, and another high pulse to turn it off. Thoughts? THanks!