Arduino Button with LED

Turns on and off a LED when pressing a pushbutton

Mar 14, 2021

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2 respects

Components and supplies

Arduino Uno Rev3

Pushbutton switch 12mm

Through Hole Resistor, 680 ohm

Jumper wires (generic)

Resistor 10k ohm

LED (generic)

Apps and platforms

Arduino IDE

Project description

Code

ARDUINO BUTTON.ino

arduino

1const int buttonPin = 2;
2const int ledPin =  13;
3
4int buttonState   = 0;
5
6void setup()
7{
8  pinMode(ledPin, OUTPUT);
9  pinMode(buttonPin,   INPUT);
10}
11
12void loop()
13{
14  buttonState = digitalRead(buttonPin);
15
16   if (buttonState == HIGH)
17  {
18    digitalWrite(ledPin, HIGH);
19  } 
20   else
21  {
22    digitalWrite(ledPin, LOW);
23  }
24}
25

const int buttonPin = 2;
const int ledPin =  13;

int buttonState   = 0;

void setup()
{
  pinMode(ledPin, OUTPUT);
  pinMode(buttonPin,   INPUT);
}

void loop()
{
  buttonState = digitalRead(buttonPin);

   if (buttonState == HIGH)
  {
    digitalWrite(ledPin, HIGH);
  } 
   else
  {
    digitalWrite(ledPin, LOW);
  }
}

ARDUINO BUTTON.ino

arduino

1const int buttonPin = 2;
2const int ledPin =  13;
3
4int buttonState  = 0;
5
6void setup()
7{
8  pinMode(ledPin, OUTPUT);
9  pinMode(buttonPin,  INPUT);
10}
11
12void loop()
13{
14  buttonState = digitalRead(buttonPin);
15
16  if (buttonState == HIGH)
17  {
18    digitalWrite(ledPin, HIGH);
19  } 
20  else
21  {
22    digitalWrite(ledPin, LOW);
23  }
24}
25

const int buttonPin = 2;
const int ledPin =  13;

int buttonState  = 0;

void setup()
{
  pinMode(ledPin, OUTPUT);
  pinMode(buttonPin,  INPUT);
}

void loop()
{
  buttonState = digitalRead(buttonPin);

  if (buttonState == HIGH)
  {
    digitalWrite(ledPin, HIGH);
  } 
  else
  {
    digitalWrite(ledPin, LOW);
  }
}

Downloadable files

ARDUINO PUSHBUTTON with LED

The circuit diagram

ARDUINO PUSHBUTTON with LED

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MinukaThesathYapa

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