06/09/2023

Stepper Motor With Arduino

Writing about Stepper Motor With Arduino for educational and informational purposes only. however, do not hesitate to use this information on your own risk as we make no warranty of any kind.

Wiring

I'm using Pins 2, 3, 4 and 5 and connecting to the driver board in1, in2, in3 and in4
Provide power via the power pins, and connect the GND of the external power supply to the Arduino GND.

Code

void setup() {
  // put your setup code here, to run once:
   pinMode(2, OUTPUT);
   pinMode(3, OUTPUT);
   pinMode(4, OUTPUT);
   pinMode(5, OUTPUT);

}

void loop() {
  // put your main code here, to run repeatedly:
    digitalWrite(2, HIGH); 
    digitalWrite(3, LOW); 
    digitalWrite(4, LOW); 
    digitalWrite(5, LOW); 
    delay(10);

    digitalWrite(2, LOW); 
    digitalWrite(3, HIGH); 
    digitalWrite(4, LOW); 
    digitalWrite(5, LOW); 
    delay(10);

    digitalWrite(2, LOW); 
    digitalWrite(3, LOW); 
    digitalWrite(4, HIGH); 
    digitalWrite(5, LOW); 
    delay(10);

    digitalWrite(2, LOW); 
    digitalWrite(3, LOW); 
    digitalWrite(4, LOW); 
    digitalWrite(5, HIGH); 
    delay(10);

}

Let's put everything together for the parking sensor

const int trigPin = 7; // Trigger Pin
const int echoPin = 6; // Echo Pin
const long dist = 5; // This is the distance to turn on the LED
int timer = 0;
void setup() {
   pinMode(13, OUTPUT);
   pinMode(12, OUTPUT);
   pinMode(11, OUTPUT);
   pinMode(10, OUTPUT);
   pinMode(trigPin, OUTPUT);
   pinMode(echoPin, INPUT);

   //stepper pins
   pinMode(2, OUTPUT);
   pinMode(3, OUTPUT);
   pinMode(4, OUTPUT);
   pinMode(5, OUTPUT);
}

void loop() {
   long duration, distinches;
   
   
   digitalWrite(trigPin, LOW);
   delayMicroseconds(2);
   
   digitalWrite(trigPin, HIGH);
   delayMicroseconds(10);
   digitalWrite(trigPin, LOW);
   
   duration = pulseIn(echoPin, HIGH);
   distinches = duration / 74 / 2;

   if (distinches < dist) {
    digitalWrite(13, HIGH); //Turn On Blue
    digitalWrite(12, LOW); //Turn Off Green
    
    if (timer > 5 && timer < 10) {
       digitalWrite(11, HIGH); //Turn On Yellow
       
    }  
    if (timer > 9) {
       digitalWrite(10, HIGH); //Turn On Red
       //Spin the motor 
       for(int counter = 1;counter <= 160;counter++) {
       digitalWrite(2, HIGH); 
       digitalWrite(3, LOW); 
       digitalWrite(4, LOW); 
       digitalWrite(5, LOW); 
       delay(10);

       digitalWrite(2, LOW); 
       digitalWrite(3, HIGH); 
       digitalWrite(4, LOW); 
       digitalWrite(5, LOW); 
       delay(10);

       digitalWrite(2, LOW); 
       digitalWrite(3, LOW); 
       digitalWrite(4, HIGH); 
       digitalWrite(5, LOW); 
       delay(10);

       digitalWrite(2, LOW); 
       digitalWrite(3, LOW); 
       digitalWrite(4, LOW); 
       digitalWrite(5, HIGH); 
       delay(10);
}
       
    }
    
   } else {
    digitalWrite(13, LOW); //Turn Off Blue
    digitalWrite(12, HIGH); //Turn On Green
    digitalWrite(11, LOW); //Turn Off Yellow
    digitalWrite(10, LOW);  //Turn Off Red
    timer = 0; // Timer Reset
    
   }
   delay(1000);
   timer = timer + 1; //Timer +1 
    
}