// Pin config
const int led = 4;
const int motor = 5;

void setup() {
  Serial.begin(9600);
  pinMode(motor, OUTPUT);
  pinMode(led, OUTPUT);
}

void loop() {
    for (int i = 124; i < 255; i++) {
      analogWrite(led, (i - 124) * 2);
      analogWrite(motor, i);
      delay(15);
    }
    for (int i = 255; i > 124; i--) {
      analogWrite(led, (i - 124) * 2);
      analogWrite(motor, i);
      delay(15);
    }
}