#define led 4
#define button 2
int button1;
boolean i=0;
void setup() {
Serial.begin(115200);
pinMode(led,OUTPUT);
pinMode(button,INPUT);
delay(400);
}
void loop() {
button1=digitalRead(button);
Serial.println(button1);
if (button1==1){
i=!i;
delay(500);
}
if(i==1){
digitalWrite(led , HIGH);
}
else
digitalWrite(led,LOW);
}