At 15.34 1995-11-08 +0100, Kamran wrote: >I wonder how a slave master configuration for 2 PIC microcontroller (in this > case 16c84) works. Well, let the master PIC send messages to the slave and tell the slave what to do, then read the result from the slave. It's no different than interfacing another IC except that YOU define the protocol between them. Use I2C if you like or plain parallell communication or RS232 or whatever feels good. -- Conny