#define ledmerah 2
#define ledputih 4
#define ledhijau 5
#define pushbutton 16

int tekan=0;

void setup() {
  // put your setup code here, to run once:
  pinMode(4, OUTPUT);
  pinMode(2, OUTPUT);
  pinMode(5, OUTPUT);
  pinMode(16, INPUT);
}

void loop() {
  // put your main code here, to run repeatedly:
   tekan=digitalRead(16);
 if(tekan==HIGH){
    digitalWrite(5, HIGH);
    delay(500);
 }else{
    digitalWrite(5, LOW);
    delay(500);
  }
  
   digitalWrite(2, HIGH);
  delay(500);
  digitalWrite(2, LOW);
  
   digitalWrite(4, HIGH);
  delay(500);
  digitalWrite(4, LOW);

  }