Arduino Tutorials – Lesson 6 – Single LED Control With Single Pushbutton

Creating single LED blink program using push button

Required Components

1. LED -1 no
2. 220 Ω Resistor -1 no
3. 10 KΩ Resistor -1 no
4. Push button -1 no
5. Bread Board -1 no
6. Arduino Board -1 no
7. Connecting wires -1 Set

Circuit

• 

Steps

1. Make sure the components are working properly.
2. Connect Arduino board 5v and GND pin to the bread board by using wires.
3. Connect 220 Ω Resistor to the LED Anode (+) pin and cathode (-) pin to Gnd.
4. Connect 220 Ω Resistor another pin to Arduino pin 9.
5. Connect 10 k Ω Resistor to the switch button.
6. Connect switch button another pin to the Arduino pin 7.
7. When we press the push button LED blinks.
8. Check the Arduino program.
9. Check the circuit connections.
10. Run the Arduino program.

Arduino Program

int ledPin = 9;
int buttonPin = 7;

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


void loop()
{  
  int button = digitalRead(buttonPin);
  if (button==HIGH)
  {
    digitalWrite(ledPin,HIGH);
  } 
  else
  {
    digitalWrite(ledPin, LOW);
  }
}

Usage

1. Switching operations.