Quote:
Originally Posted by Samwise_T
Our Vex Spikes have a Voltage in, ground, and PWM input, and then a M+ and M- output.
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Glad I went back and re-read this. Spike relays do
NOT have a PWM input. The connector is the same, but the signals are
VERY different - so different that I wish they didn't have the same pins. The Spike relays must be connected to a RELAY port on the 'RIO, not the PWM port. The black is ground on both PWM and RELAY, but on RELAY the red and white wires are both data lines that may be at either 0V or 5V. For PWM, the red line is at a constant 5V, and the white line switches back and forth rapidly to provide control.