The Arduino board switch that i conducted and programmed from my computer to the components used then processing through the circuit board and the period through the LED light. I have used the switch where u press and hold the switch in order to keep the LED remaining on.

#define LED 13 //the pin for the LED

#define BUTTON 7 //the input pin where the pushbutton is connected

int val = 0; //val will be used to store the state of the input pin

int old_val = 0; //this variable stores the previous value of "val"

int state = 0; //0 = LED off while 1 = LED on

void setup () {

pinMode (LED, OUTPUT); //tell Arduino LED is an object

pinMode (BUTTON, INPUT); //and BUTTON is an input

}

void loop() {

val = digitalRead(BUTTON); //read input value and store it

//check whether the input is HIGH (button pressed)

//and change the state

if (val == HIGH) {

  state = 1 - state;

}

if (state == 1) {

digitalWrite(LED, HIGH); //turn LED ON

} else {

digitalWrite(LED, LOW);

}

}