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Introduction 

Grove - Button is a momentary push button. It contains one independent "momentary on/off" button. “Momentary” means that the button rebounds on its own after it is released. The button outputs a HIGH signal when pressed, and LOW when released. The Sig marked on silk layer stands for signal while NC stands for not used at all. There are two versions of this button available as showed in the pictures. The only difference is the direction of the Grove socket.

Features
  • Easy to use momentary ON/OFF button
  • Uses Standard 4-pin Grove Cables

What we need and connection

For this tutorial we will need:

The code

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const int buttonPin = 2; 
const int buzzer = A3; 

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

void setup() {
    // initialize the LED pin as an output:
    pinMode(buzzer, OUTPUT);
    // initialize the pushbutton pin as an input:
    pinMode(buttonPin, INPUT);
}

void loop(){
    // read the state of the pushbutton value:
    buttonState = digitalRead(buttonPin);
    if (buttonState == HIGH) {
        tone(buzzer, 1000);
    }
    else {
        noTone(buzzer);
    }
}
Download the code from here and open it with Arduino IDE.
grove-button.zip
File Size: 0 kb
File Type: zip
Download File

Well done!

You have successfully completed one more Arduino Grove tutorial.

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