//The first step was to initiallize my pins.
//They are named, and are addressed to the pins which I use on the board

const int switchPin = 2;    // switch input, I am using a button
const int motor1Pin = 3;    // For the H-bridge first pin
const int motor2Pin = 4;    // For the H-bridge second pin
const int enablePin = 9;    // Enable pin

void setup() {
//The first step was to initialize which pins were inputs and
//which were outputs.
    pinMode(switchPin, INPUT);//pin 2
    pinMode(motor1Pin, OUTPUT);//pin 3
    pinMode(motor2Pin, OUTPUT);//pin 4
    pinMode(enablePin, OUTPUT);// pin 9
//Next, I want to set the enable pin, the on. This means, as soon as
//I m connected to power, the motor will turn on, and spin in one
//direction
    digitalWrite(enablePin, HIGH);
}

void loop() {
  //Now I want my board to read if the button is being pushed or not.
  // if it IS, then the switchpin is HIGH, and it will enter this loop
    if (digitalRead(switchPin) == HIGH) {
      //first I set the first H-bridge pin to HIGH, or sending power
      //to that side so it will spin in one direction
      digitalWrite(motor1Pin, HIGH);
      //Then I set the second H-bridge pin to LOW, so it will on spin
      //one way.
      digitalWrite(motor2Pin, LOW);
    }

    // if the button is not being pressed, I was the motor to spin the
    //opposite direction, So I just need to switch which H-bridge pin
    //is HIGH.
    else {
      digitalWrite(motor2Pin, HIGH);
      digitalWrite(motor1Pin, LOW);
    }
  }