Tower Crane; the next phase

Projects General Guidance
23

Here is a very simple code to test a stepper connected tothe X axis A4988 driver in a CNC shield V3 on an Uno. Tested, successfully, just now on my setup.

#define CW 0
#define CCW 1

const byte stepPin = 2;
const byte dirPin = 5;
const byte enablePin = 8;

unsigned long stepTime = 2400;  // change this to change speed.  lower is faster

void setup()
{
   Serial.begin(115200);
   pinMode(stepPin, OUTPUT);
   pinMode(dirPin, OUTPUT);
   pinMode(enablePin, OUTPUT);
   digitalWrite(enablePin, LOW);
   digitalWrite(dirPin, CW);
}

void loop()
{
  oneStep();
}

void oneStep()
{
   static unsigned long timer = 0;
   unsigned long interval = stepTime;
   if (micros() - timer >= interval)
   {
      timer = micros();
      digitalWrite(stepPin, HIGH);
      delayMicroseconds(10);
      digitalWrite(stepPin, LOW);
   }
}

That sounds like the motor is enabled, but is not getting step pulses.