I've been trying to learn SPI as it relates to Arduino. I've managed to control an LED using a digital potentiometer courtesy of a youtube tutorial but I'm more interested in controlling one Arduino with another using SPI. I understand that it requires code on both ends but I have no idea how to mak…

SPI Blink tutorial

CrossRoads April 10, 2014, 3:25am 3

Try Nick Gammon's page also for uC to uC comm's.

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