     Serial.write(Serial.read());
   }
 
+#if 0
+  //DRV8825
   //One revolution, then wait one cycle
   if (tu - step_t > step_wait) {
     //One fullstep lap (two toggles per step)

    step_count += 1;
    step_t = tu;
  }

  //Blink every second
  if (tm - blink_t > 1000) {

#define DRV8825_MODE2 5
#define DRV8825_ENABLE 6

//A4983 pins
#define A4983_STEP 7
#define A4983_MODE0 3 //Same as DRV8825
#define A4983_MODE1 4 //Same as DRV8825
#define A4983_MODE2 5 //Same as DRV8825
#define A4983_ENABLE 8

void setup() {
  Serial.begin(9600);
  pinMode(13, OUTPUT);

  //DRV8825 pin config
  pinMode(DRV8825_STEP, OUTPUT);
  pinMode(DRV8825_MODE0, OUTPUT);
  pinMode(DRV8825_MODE1, OUTPUT);
  pinMode(DRV8825_MODE2, OUTPUT);
  pinMode(DRV8825_ENABLE, OUTPUT);

  //DRV8825 pin config
  pinMode(A4983_STEP, OUTPUT);
  pinMode(A4983_ENABLE, OUTPUT);

  digitalWrite(DRV8825_STEP, LOW);
  digitalWrite(DRV8825_MODE0, LOW);
  digitalWrite(DRV8825_MODE1, LOW);
  digitalWrite(DRV8825_MODE2, LOW);
  digitalWrite(DRV8825_ENABLE, HIGH);
  digitalWrite(A4983_STEP, LOW);
  digitalWrite(A4983_ENABLE, HIGH);

  //Timer variables for steps
  blink_t = millis();
