Hi all I am trying to communicate using SPI protocol between two arduino uno boards. I have writthen a very simple code to transfer a single character from master. The code is as following #include <SPI.h> #include "pins_arduino.h" void setup (void) { } void loop (void) { digitalWrite(SS,…

SPI communication on arduino uno

system January 10, 2013, 6:11pm 2

Nick Gammon has an excellent writeup on SPI, including master/slave data exchange, at:

Good luck!