/* TITLE: ARDUINO UNO and ARDUINO MOTOR SHIELD - 2Amp (L298N) */
/* FILE NAME: MOTOR2A.pde */ 
/* AUTHOR: Roger D. Secura */
/* DATE: 3-19-11 */
/* PROGRAM FUNCTION: Turn motors 1 and 2 on in one direction for */
/* 3 seconds and then reverse motor direction for 3 seconds */

int E1Pin = 6;
int M1Pin = 7;
int E2Pin = 5;
int M2Pin = 4;

void setup() {
  pinMode(E1Pin, OUTPUT);
  pinMode(M1Pin, OUTPUT);
  pinMode(E2Pin, OUTPUT);
  pinMode(M2Pin, OUTPUT);
}  
void loop() 
{
  digitalWrite(E1Pin, LOW);
  digitalWrite(E2Pin, LOW);
  delay(3000);
  digitalWrite(M1Pin, HIGH);
  digitalWrite(M2Pin, LOW);
  delay(500);
  digitalWrite(E1Pin, HIGH);
  digitalWrite(E2Pin, HIGH);
  delay(3000);
  digitalWrite(E1Pin, LOW);
  digitalWrite(E2Pin, LOW);
  delay(3000);
  digitalWrite(M1Pin, LOW);
  digitalWrite(M2Pin, HIGH);
  delay(500);
  digitalWrite(E1Pin, HIGH);
  digitalWrite(E2Pin, HIGH);
  delay(3000);
}