Grove Button

Grove - Buttons (Seeed-Studio)

Caractéristiques

1. Connect the Grove Button to digital port D3

Code Exemple

	//Turns on and off a light emitting diode(LED) connected to digital pin 13, when pressing a pushbutton attached to pin 2.

	/*
	 The circuit:
	 * LED attached from pin 13 to ground
	 * pushbutton attached to pin 2 from +5V
	 * 10K resistor attached to pin 2 from ground

	 * Note: on most Arduinos there is already an LED on the board
	 attached to pin 13.


	 This example code is in the public domain.

	 http://www.arduino.cc/en/Tutorial/Button
	 */

	// constants won't change. They're used here to
	// set pin numbers:
	const int buttonPin = 2;     // the number of the pushbutton pin
	const int ledPin =  13;      // the number of the LED pin

	// variables will change:
	int buttonState = 0;         // variable for reading the pushbutton status

	void setup() {
		// 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);
		}
		else {
			// turn LED off:
			digitalWrite(ledPin, LOW);
		}
	}