In this small example the left pic has a counter and sends the value of that counter over one single wire to the other pic.
After the counter value has been received by the pic on the right hand side it sends it on to the PC using a regular serial connection.
Amazing that the entire communication flows over just one wire. It is loosely based on the Dallas 1 wire technique which even allows the power to go over that same wire!
As a proof of concept the next demonstration is with three pics. Pic number one continuously sends a 10, while pic number two continuously sends 20. Wires from these pic go to a third pic. This one reads both wires and send the result to a PC. Sometimes directly after programming the communication won't start up, simply switch the power off and on to start the show.
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