How about a simple ring network? - Suppose you had, say a number of 8051's connected in a '2-wire' ring network (1-signal line + 1 ground line)

"open air" uC pins is asking for the uC to be destroyed, the fact that someone has done it without problems does not "prove" that it will work.

1-signal line + 1 ground line WILL, even if buffered, be noise pickup prone and the fact that someone has done it without problems does not "prove" that it will work.

If the purpose of Dareks post is to get answers like the above from people that have succeeded by luck, not by design, then my attempts to have Darek succeed are misplaced.

Darek, do you wnat something that is 99.17% likely to work or something thatMAY work? please post an answer so we can get this discussion back on track.

Erik