Make pins 11 to 13 on the Mega inputs or tri-stated outputs.Īdd the define somewhere in the header file for the shield or at the beginning of the sketchĪdd the code to disable the pins that are used by Uno for SPI in the setup() function #ifdef MEGA (The RCA connector is not in a ideal location for the wire jumpers. The picture for the pin numbers 50-51 on the Mega connector is misleading due to the parallax. The slave select pin 53 does not need to be wired, as it is mapped as a normal GPIO in a normal Uno sketch.
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