I have to create a circuit that will sense if a car is "in the driveway" by breaking an IR pair built with an LED driver. Then the pathway is broken, this has to turn power on for the connected mic. This mic is a clapper with 2 claps turns the lights off and 1 clap turns them on. How should I build the logic using up to 2 CD4007 mosfet, and 4 74LS00 chips. Any help would be much appreciated. The "driveway sensor" has been figured out and the clapper I am in the process of getting and I am stumped on incorporating the clapper to turn lights on and off and to turn the mic of if a car is in the driveway. Like I said all help is welcome.