const int DIR = 12;
const int STEP = 6;
const int steps_per_rev = 200;

void setup() {

  Serial.begin(9600);
  pinMode(STEP, OUTPUT);
  pinMode(DIR, OUTPUT);
}

void loop() {
  while (Serial.available() == 0) {}

  digitalWrite(DIR, HIGH);
  digitalWrite(STEP, HIGH);
  delayMicroseconds(500);
  digitalWrite(STEP, LOW);
  delayMicroseconds(500);
  int A1_current_sense = analogRead(A1);
  Serial.println("A1_current_sense");
}