Wireless Home Security Implementing KEELOQ and the PIC Microcontroller

System solution for a low end/power wireless home security system. This design implements an HCS200 encoder for the intruder sensor signal encryption, one PIC12C508A PIC MCU for sensor monitoring and RF signal initiation, HCS515 decoders for decrypting the received intruder sensor signal and a PIC16C77 PIC MCU for base station panel monitoring and control