// Creates an instance - Pick the version you want to use and un-comment it. That's the only required change. //AccelStepper myStepper(AccelStepper::FULL4WIRE, AIn1, AIn2, BIn1, BIn2); // works for ...

x (character): Must be one of the commands the arduino program understands, h,e,d,w,p,m,s,c,f,l,a,x.