int ledmerah=2;
int ledhijau=7;
int ledkuning=8;
int tombolhijau=A0;
int tombolkuning=A1;
int tombolmerah=A2;
int data;
void setup() {
  // put your setup code here, to run once:
pinMode(ledmerah, OUTPUT);
pinMode(ledhijau, OUTPUT);
pinMode(ledkuning, OUTPUT);
pinMode(tombolmerah, INPUT_PULLUP);
pinMode(tombolkuning, INPUT_PULLUP);
pinMode(tombolhijau, INPUT_PULLUP);
Serial.begin(9600);
}

void loop() {
data=digitalRead(tombolmerah);
Serial.println(data);
if(data==1)
digitalWrite(ledmerah, LOW);
}
if(data==0{
  digitalWrite(ledmerah, HIGH);
}
 data=digitalRead(tombolkuning);
 Serial.println(data);
if (data==1){
  digitalWrite(ledkuning, LOW);
}
if(data==0){
  digitalWrite(ledkuning, HIGH);
}
data=digitalRead(tombolhijau);
Serial.println(data);
if(data==1){
  digitalWrite(ledhijau, LOW);
}
if(data==0){
  digitalWrite(ledhijau, HIGH);
}
}