Oefening 4c

int ledOne = D4;
int ledTwo = D3;

void setup() {
  // initialize digital pin LED_BUILTIN as an output.
  pinMode(ledOne, OUTPUT);
  pinMode(ledTwo, OUTPUT);
}

void loop() {
analogWrite(ledTwo, 255);

for (int helderheid=0; helderheid<256; helderheid++){
analogWrite(ledOne, helderheid);
delay(10);

if(helderheid==255){
analogWrite(ledOne, 0);
analogWrite(ledTwo, 0);
delay(1000);
}
}
}