retepsnikrep
Senior Member
Why is the below reqd. I note the explanation but what does the diode do?
Also why does the Serout command need a bracket round the variable sent when Serin does not?"`PICAXE-08/08M/14M - Due to the internal structure of input3 on these chips, an 1N4148 diode is required between the pin and V+ for serin to work on this particular pin (‘bar’ end of diode to V+) with this circuit. All other pins have an internal diode."