Example Code for Arduino-LED Button Control

Hardware Preparation

• Arduino UNO × 1
• LED Switch Module × 1
• Digital Cable × 1

Software Preparation

• Arduino IDE

Wiring Diagram

Sample Code

   /*
      Description:
	  When you press the button for the first time, its inner LED will be lighten up. At the same time, the LED on pin 13 on the board will be lighten up, too.
	  When you press the button again, its inner LED will be off, and the other one on pin 13 will be off as well.

    */


    int ledPin = 13;                // Select the pin of light
    int inputPin = 2;               // Sensor connect pin 2

    void setup() {
      pinMode(ledPin, OUTPUT);      // Define the pin of light as output pin
      pinMode(inputPin, INPUT);     // Define the pin of button as input pin
    }

    void loop(){
      int val = digitalRead(inputPin);  //Read input value
      if (val == HIGH) {            // Check if the input is high, high means the button is pressed down.
         digitalWrite(ledPin, HIGH); // LED light is on
      } else {
         digitalWrite(ledPin, LOW);  // LED light is off
      }
    }

Result