I am currently using an Arduino Mega 2560 to run this stepper motor driver (Big Easy Driver, ROB-11876 from sparkfun) https://www.sparkfun.com/products/11876.
I am trying to use the sleep or enable function on this chip to decrease the power consumption when I am not using the motor. I have all the rest of the driver working properly (steps, direction etc.) but when I hook up a wire to either the sleep or enable section and send a respective high or low it doesn't appear to do anything. (Chip works as normal, power consumption stays the same).
I have tested to see that the Arduino is outputting correctly and it seems to be. But other than this I'm kinda at a loss on what might be wrong.
Does anyone have any suggestions on why this might be or other things to test to try to narrow down the problem?
Found my answer from Sparkfun - see below