I am a beginner tasked with making a master PIC communicate with up to 3 slave PICs over a single wire using MPLAB assembly. USART/RS232 is ok, but am also open to bit-banging methods. Any pointers on where to begin, including websites with code samples and textbook listings, will be greatly appreciated.
i would suggest that you start with a set of routines that communicate between the master to one slave. then you figure out a way to avoid transmission conflict (your own protocol essentially) and then try it on a 1-N set up.