DC Motor Code

DCmotor.ino

const int switchPin = 2;    // switch input
const int motor1Pin = 3;    // H-bridge leg 1 (pin 2, 1A)
const int motor2Pin = 5;    // H-bridge leg 2 (pin 7, 2A)
const int enablePin = 9;    // H-bridge enable pin

void setup() {
    // set the switch as an input:
    pinMode(switchPin, INPUT);
    
    // set all the other pins you're using as outputs:
    pinMode(motor1Pin, OUTPUT);
    pinMode(motor2Pin, OUTPUT);
    pinMode(enablePin, OUTPUT);

    // set enablePin high so that motor can turn on:
    digitalWrite(enablePin, HIGH);

    Serial.begin(9600);
}

void loop() {
  
  //check if switch works
  //Serial.println(digitalRead(switchPin));

  // if the switch is high, motor will turn on one direction
  
  // set leg 1 of the H-bridge low
  // set leg 2 of the H-bridge high  
  if(digitalRead(switchPin)==HIGH)
  {
    digitalWrite(motor1Pin, HIGH);
    analogWrite(motor2Pin, 0);
  }

    // else (which means the switch is low), motor will turn in the other direction

  // set leg 1 of the H-bridge high
  // set leg 2 of the H-bridge low

  else{
    digitalWrite(motor1Pin, LOW);
    analogWrite(motor2Pin, 90);
  }
}