UnoQ_PWM_GPIO

const int dirA = D12;    // motor direction pin for motor A
const int pwmA = D3;    // PWM pin for motor A
const int brakeA = D9;   // Brake pin for motor A

const int dirB = D13;    // D4 works, motor direction pin for motor B
const int pwmB = D11;    // PWM pin for motor B
const int brakeB = D8;   // Brake pin for motor B

int outputValue = 80;  // value output to the PWM (analog out)
int dirValue = 0;     // value output to the directional pin
int brakeValue = 1;   // value output to the Brake pin

void setup() {
    pinMode(D2, OUTPUT);
    pinMode(D4, OUTPUT);
    pinMode(D5, OUTPUT);
    pinMode(D6, OUTPUT);
    pinMode(D7, OUTPUT);
    pinMode(D10, OUTPUT);

    pinMode(brakeA, OUTPUT);
    pinMode(brakeB, OUTPUT);
    pinMode(dirA, OUTPUT);
    pinMode(dirB, OUTPUT);

    digitalWrite(dirA, dirValue);
    digitalWrite(dirB, dirValue);

    digitalWrite(brakeA, brakeValue);
    digitalWrite(brakeB, brakeValue);
}

void loop() {
    analogWrite(pwmA, outputValue);
    analogWrite(pwmB, outputValue);

    digitalWrite(dirA, dirValue);
    digitalWrite(dirB, dirValue);
    dirValue = !dirValue;

    digitalWrite(brakeA, brakeValue);
    digitalWrite(brakeB, brakeValue);
    brakeValue = !brakeValue;

    digitalWrite(D2, dirValue);
    digitalWrite(D4, dirValue);
    digitalWrite(D5, dirValue);
    digitalWrite(D6, dirValue);
    digitalWrite(D7, dirValue);
    digitalWrite(D10, dirValue);

    delay(500);
}