//constnat instantiation for pins & starting speed(s)
const int yright = 5;
const int yleft = 4;

const int button = 0;

int speedRight = 75; 
int speedLeft = 75;

//Setting up pins to be output & setting analog joystick value to neutral
void setup() {
  pinMode(yright, OUTPUT);
  pinMode(yleft, OUTPUT);
  pinMode(button, OUTPUT);
  analogWrite(yright, speedRight);
  analogWrite(yleft, speedLeft);
  digitalWrite(button, LOW);
}

void loop() {
//iterates through voltage values to vary speed, with an action performed following each iteration
  for(int speed = 0; speed < 200; speed++){
    analogWrite(yright, speed);
    analogWrite(yleft, speed);
    delay(100);
    Serial.println(speed);
  }
  digitalWrite(button, HIGH);
  delay(100);

}