int ledM=13;
int ledH=12;
int ledB=11;
int ledK=10;
int ledU=9;
int btn=8;
int kondisi=0;

 void setup () {
 pinMode (ledM,OUTPUT);
 pinMode(ledH, OUTPUT);
 pinMode(ledB, OUTPUT);
 pinMode(ledK, OUTPUT);
 pinMode(ledU, OUTPUT);
 pinMode (btn, INPUT_PULLUP);
 }

 void loop () {
kondisi= digitalRead(btn);

 if (kondisi== LOW){
 digitalWrite (ledM, HIGH);
 digitalWrite (ledH, LOW);
 digitalWrite (ledB, LOW);
 digitalWrite (ledK, LOW);
 digitalWrite (ledU, LOW);
 }else{
  digitalWrite (ledM, LOW);
  digitalWrite (ledH, HIGH);
  digitalWrite(ledB, LOW);
  digitalWrite(ledK, LOW);
  digitalWrite (ledU, LOW);
 }else{
  digitalWrite (ledM, LOW);
  digitalWrite (ledH, LOW);
  digitalWrite (ledB, HIGH);
  digitalWrite (ledK, LOW);
  digitalWrite (ledU, LOW);
 }else{
  digitalWrite (ledM, LOW);
  digitalWrite (ledH, LOW);
  digitalWrite (ledB, LOW);
  digitalWrite (ledK, HIGH);
  digitalWrite (ledU, LOW);
 }else{
  digitalWrite (ledM, LOW);
  digitalWrite (ledH, LOW);
  digitalWrite (ledB, LOW);
  digitalWrite (ledK, LOW);
  digitalWrite (ledU, HIGH);
 }else{
digitalWrite (btn, LOW);
 }
}