struct Speeds {
    // struct
    int left;
    int right;
};

Speeds new_speed;
Speeds last_speed;

Speeds PID(int leftSensor, int rightSensor) {
    // create a new set of speeds
    Speeds motorSpeeds;

    // default speed
    motorSpeeds.left  = 80;
    motorSpeeds.right = 80;

    // pid loop here!

    // return the calculated speeds
    return motorSpeeds;
}


// the setup function runs once when you press reset or power the board
void setup() {
}

// the loop function runs over and over again forever
void loop() {
  new_speed =  PID(1,2);
}