ev3js/test/button.js

LEGO Mindstorms EV3 API for Node.js

var Button = require('../index.js').Button;

var btn = new Button();
console.log('click ESC button to exit...');
btn.on('press', function(keycode){
    console.log('press: ' + keycode);
});
btn.on('release', function(keycode){
    console.log('release: ' + keycode);
    if(keycode === btn.ESC){
        this.abort();
        process.exit();
    }
});