hybridgroup/cylon-digispark

# Button

For this example, we're going to be connecting to a digispark, and when a button
on one of its pins is pressed, a LED will be toggled.

Before you start this example, make sure you've got the `cylon-digispark` module
installed.

We'll get started by importing the Cylon module:

    var Cylon = require('cylon');

Now that we have Cylon imported, let's start making our robot:

    Cylon.robot({

Our robot will have a connection to a digispark, and communicate with it via the
littlewire protocol, we also include an `interval` param to specify how
often we want to read the inputs, in this case every 0.1 seconds:

      connections: {
        digispark: { adaptor: 'digispark', interval: 0.1 }
      },

Our robot will have two devices, an LED and a button:

      devices: {
        led: { driver: 'led', pin: 0 },
        button: { driver: 'button', pin: 5 }
      },

Our robot has very simple work, it will just toggle the LED whenever the button
sends the 'push' event, we also log the press and release event, release is
triggered when the button registers a Low voltage (0), press is
triggered when the button registers a High voltage (1), and push is
triggered when both events have been triggered (similar to a click event in the browser):

      work: function(my) {
        my.button.on('press', function() {
          console.log('press:');
        });

        my.button.on('release', function() {
          console.log('release: ');
        });

        my.button.on('push', function() {
          console.log('push: ', my.button.isPressed());
          my.led.toggle();
        });
      }

And with all that done, we can start our robot:

    }).start();