int ledM=13;
int ledH=12;
int ledB=11;
int ledK=10;
int ledU=9;
int ledT=8;
int ledJ=7;
int ledP=6;
int ledG=5;
int ledO=4;
int btn=2;
int kondisi=0;

void setup () {
   pinMode(ledM, OUTPUT);
   pinMode(ledH, OUTPUT);
   pinMode(ledB, OUTPUT);
   pinMode(ledK, OUTPUT);
   pinMode(ledU, OUTPUT);
   pinMode(ledT, OUTPUT);
   pinMode(ledJ, OUTPUT);
   pinMode(ledP, OUTPUT);
   pinMode(ledG, OUTPUT);
   pinMode(ledO, OUTPUT);
   pinMode (btn, INPUT_PULLUP);
 }

void loop () {
kondisi= digitalRead(btn);
 
if (kondisi== LOW){
 digitalWrite(ledM, HIGH);
 digitalWrite(ledH, HIGH);
 digitalWrite(ledB, HIGH);
 digitalWrite(ledK, HIGH);
 digitalWrite(ledU, HIGH);
 digitalWrite(ledT, HIGH);
 digitalWrite(ledJ, HIGH);
 digitalWrite(ledP, HIGH);
 digitalWrite(ledG, HIGH);
 digitalWrite(ledO, HIGH);
}else{
 digitalWrite(btn, LOW);
 digitalWrite(ledM, LOW);
 digitalWrite(ledH, LOW);
 digitalWrite(ledB, LOW);
 digitalWrite(ledK, LOW);
 digitalWrite(ledU, LOW);
 digitalWrite(ledT, LOW);
 digitalWrite(ledJ, LOW);
 digitalWrite(ledP, LOW);
 digitalWrite(ledG, LOW);
 digitalWrite(ledO, LOW);
 }
 }