lab5.ino

/*
 * Lucas Dachman
 * Nov 15 2018
 */

const int SWITCH = 10;
const int ON = 0;

const int motor1Pin = 3;    // H-bridge leg 1 (pin 2, 1A)
const int motor2Pin = 4;    // H-bridge leg 2 (pin 7, 2A)
const int enablePin = 9;    // H-bridge enable pin
//In the setup(), set all the pins for the H-bridge as outputs, and the pin for the switch as an input. Then set the enable pin high so the H-bridge can turn the motor on.

void setup() {
  // set the switch as an input:
  Serial.begin(9600);
  pinMode(SWITCH, INPUT_PULLUP);

  // set all the other pins you're using as outputs:
  pinMode(3, OUTPUT);
  pinMode(9, OUTPUT);
  pinMode(4, OUTPUT);

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

}
//In the main loop() read the switch. If it’s high, turn the motor one way by taking one H-bridge pin high and the other low. If the switch is low, reverse the direction by reversing the states of the two H-bridge pins.

void loop() {
  // if the switch is high, motor will turn on one direction
  if (digitalRead(SWITCH) == ON) {
    Serial.println("ON");
    digitalWrite(motor1Pin, LOW);
    digitalWrite(motor2Pin, HIGH);
  } else {
    Serial.println("OFF");
    digitalWrite(motor1Pin, HIGH);
    digitalWrite(motor2Pin, LOW);
  }
}