A programmable micro computer system controller designed to give the user the ability to control up to 8 system functions with 12 inputs available for feedback information. The Programmable Controller comes standard with an internal switching power supply, a programmable CPU capable of up to 1000 instructions, and a fixed number of I/O connections. Up to two additional expansion slots can be added for even more versatility. The unit can be programmed by RGF for a fee, or can be programmed using a handheld terminal or a personal computer.