Sure! Here's the Arduino code to control an LED using a push button.


---

✅ Scenario:

When the button is pressed, the LED turns ON

When the button is released, the LED turns OFF



---

🧾 Arduino Code:

const int buttonPin = 2;    // Push button connected to digital pin 2
const int ledPin = 13;      // LED connected to digital pin 13 (onboard LED)

void setup() {
  pinMode(buttonPin, INPUT);   // Set button pin as input
  pinMode(ledPin, OUTPUT);     // Set LED pin as output
}

void loop() {
  int buttonState = digitalRead(buttonPin);  // Read button state

  if (buttonState == HIGH) {
    digitalWrite(ledPin, HIGH);  // Turn on LED
  } else {
    digitalWrite(ledPin, LOW);   // Turn off LED
  }
}


---

⚠️ Important Notes:

Connect one side of the push button to 5V

Connect other side to pin 2, with a 10kΩ resistor to GND (pull-down)

LED connected to pin 13, or use an external LED with a 220Ω resistor



---

Would you like:

A Tinkercad link with this code and circuit?

Or a version using internal pull-up resistors (no 10kΩ needed)?


Let me know!