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Grove Momentary Push Button

The 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 button signals the SIG Pin of the Grove Interface while NC is not used at all.

Wiring

wiring

Sketch

const int buttonPin = 2;    

// SIG pin in the push button
const int ledPin =  13;      

// Autonomo built-in LED  
// variable for reading the pushbutton status 
int buttonState = 0;         

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);  
 }
}
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