LED on Switch using Arduino Nano

A lot of things as newbie to do with Arduino. Today,  we will do a simple circuit using Arduino.

Let try..

Code :

// set pin numbers:

const int buttonPin = 3;     // the number of the push button pin

const int ledPin =  11;      // the number of the LED pin

// variables will change:

int buttonState = 0;         // variable for reading the push button status

void setup() {

  // initialize the LED pin as an output:

  pinMode(ledPin, OUTPUT);

  // initialize the pushbutton pin as an input:

  pinMode(buttonPin, INPUT);

}

void loop(){

  // read the state of the pushbutton value:

  buttonState = digitalRead(buttonPin);

  // check if the pushbutton is pressed.

  // if it is, the buttonState is HIGH:

  if (buttonState == HIGH) {

    // turn LED on:

    digitalWrite(ledPin, HIGH);

  }

  else {

    // turn LED off:

    digitalWrite(ledPin, LOW);

  }

}