TRTL Testing Code for H-Bridge Control of Motors

TRTL.pde

#define EN_1_2 12
#define EN_3_4 7
#define INPUT_1A 11
#define INPUT_2A 10
#define INPUT_4A 8
#define INPUT_3A 9

void setup()
{
   pinMode(EN_1_2, OUTPUT);
   pinMode(EN_3_4, OUTPUT);
   pinMode(INPUT_1A, OUTPUT);
   pinMode(INPUT_2A, OUTPUT);
   pinMode(INPUT_3A, OUTPUT);
   pinMode(INPUT_4A, OUTPUT);
   digitalWrite(EN_1_2, HIGH);
   digitalWrite(EN_3_4, HIGH);
}
void loop()
{
  digitalWrite(INPUT_1A, HIGH);
  digitalWrite(INPUT_2A, LOW); 
  digitalWrite(INPUT_3A, HIGH);
  digitalWrite(INPUT_4A, LOW);
  delay(10000);                  // wait for a second
  digitalWrite(INPUT_1A, LOW);
  digitalWrite(INPUT_2A, HIGH);
  digitalWrite(INPUT_3A, LOW);
  digitalWrite(INPUT_4A, HIGH);
  delay(10000);                  // wait for a second
}