Grove - Button and LED

Grove - Button and LED

This example shows you how to turn on or off an LED via button.

Hardware Required

- Intel® Edison Module

- Arduino* expansion board

- Grove Base Shield v2

- Grove Button(P)

- Grove LED Socket Kit

Circuit

Schematic

Code 

const int buttonPin = 3;     // the number of the pushbutton pin

const int ledPin =  7;         // the number of the LED pin

// variables will change:

int buttonState = 0;         // variable for reading the pushbutton status

void setup() {

  // start serial port

  Serial.begin(115200);

  Serial.println("LED Demo");

  // 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); 

    //Serial.println("Pin-HIGH"); 

  } 

  else {

    // turn LED off:

    digitalWrite(ledPin, LOW); 

    //Serial.println("Pin-LOW"); 

  }

  

  //delay(500);               // wait for a 0.5 second

}

See  Also

 

Reference sites