I'm new to Arduinos and hardware in general and I was wondering what all the important parts on the Arduino do. Such as: What does the AREF pin do? What do the squigglies (~) mean on some of the pins? On pin 0 and 1, what does TX->1 and RX<-0 mean? What do the six "ICSP" pins do? And lastly, if I po…

What do all the things on my UNO do?

CrossRoads June 5, 2011, 5:59pm 5

What's there to say?
Arduino1 TX -> Rx Arduino2
Arduino2 RX <- Tx Arduino2

Then do Serial.Writes & Serial.Reads back & forth.

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