// Using Pushbutton as a Toggle Switch
// Same circuit as that of task 25
int LEDState = 0 ; 
int LEDPIn = 8;
int buttonpin = 12;
int buttonnew;
int buttonold=1;
int dt=100;
void setup() {
  // put your setup code here, to run once:
Serial.begin(9600);
pinMode(LEDPIn , OUTPUT);
pinMode(buttonpin , INPUT);
}

void loop() {
  // put your main code here, to run repeatedly:
buttonnew=digitalRead(buttonpin)
if(buttonold==0 && buttonnew==1){
if(LEDState==0){
  digitalWrite(LEDPIn,HIGH);
  LEDState=1
}
else{
  digitalWrite(LEDPIn , LOW);
  LEDState=0;
}
}
buttonold=buttonnew;
}