RECEIVER The receiver (RMX-900-HP3) receives the signal from the transmitter of the other smoke detectors and relays that signal to the PIC microcontroller.
PIC MICROCONTROLLER PIC microcontroller (PIC 16F84A) is the heart of the system. Microcontroller input comes from receiver, temperature sensor, smoke sensor, and low battery sensor as well as outputting the appropriate signal and bits to the tone generator and transmitter.
TRANSMITTER The transmitter (TMX-900-HP3) sends a signal to the other smoke detectors in the network in order to alert them to set off the audible alarm.