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CODICI COMANDO MOTORE

const int switchPin = 2;    // switch input
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
const int ledPin = 13;      // LED

  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);
    pinMode(ledPin, OUTPUT);
    // set enablePin high so that motor can turn on:
    digitalWrite(enablePin, HIGH);
    // blink the LED 3 times. This should happen only once.
    // if you see the LED blink three times, it means that the module
 

// reset itself,. probably because the motor caused a brownout
    // or a short.
    blink(ledPin, 3, 100);
  }
  void loop() {
    // if the switch is high, motor will turn on one direction:
    if (digitalRead(switchPin) == HIGH) {
      digitalWrite(motor1Pin, LOW);   // set leg 1 of the H-bridge low
      digitalWrite(motor2Pin, HIGH);  // set leg 2 of the H-bridge high
    }
    // if the switch is low, motor will turn in the other direction:
    else {
      digitalWrite(motor1Pin, HIGH);  // set leg 1 of the H-bridge high
      digitalWrite(motor2Pin, LOW);   // set leg 2 of the H-bridge low
    }
  }
  void blink(int whatPin, int howManyTimes, int milliSecs)

const int switchPin = 2;    // switch input
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
const int ledPin = 13;      // LED

  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);
    pinMode(ledPin, OUTPUT);
    // set enablePin high so that motor can turn on:
    digitalWrite(enablePin, HIGH);
    // blink the LED 3 times. This should happen only once.
    // if you see the LED blink three times, it means that the module
 

// reset itself,. probably because the motor caused a brownout
    // or a short.
    blink(ledPin, 3, 100);
  }
  void loop() {
    // if the switch is high, motor will turn on one direction:
    if (digitalRead(switchPin) == HIGH) {
      digitalWrite(motor1Pin, LOW);   // set leg 1 of the H-bridge low
      digitalWrite(motor2Pin, HIGH);  // set leg 2 of the H-bridge high
    }
    // if the switch is low, motor will turn in the other direction:
    else {
      digitalWrite(motor1Pin, HIGH);  // set leg 1 of the H-bridge high
      digitalWrite(motor2Pin, LOW);   // set leg 2 of the H-bridge low
    }
  }
  void blink(int whatPin, int howManyTimes, int milliSecs)

    int i = 0;
    for ( i = 0; i < howManyTimes; i++) {
      digitalWrite(whatPin, HIGH);
      delay(milliSecs/2);
      digitalWrite(whatPin, LOW);
      delay(milliSecs/2);
    }
  }

    int i = 0;
    for ( i = 0; i < howManyTimes; i++) {
      digitalWrite(whatPin, HIGH);
      delay(milliSecs/2);
      digitalWrite(whatPin, LOW);
      delay(milliSecs/2);
    }
  }