# Blink

For this very basic Cylon example, we're just going to hook up to an Arduino and
blink an LED on it with a one-second interval.

To get started, let's load up Cylon:

    var Cylon = require('cylon');

With Cylon loaded, we can now define our basic robot.

    Cylon.robot({

Our robot has one connection, to an Arduino using the `cylon-firmata` adaptor:

      connections: {
        arduino: { adaptor: 'firmata', port: '/dev/ttyACM0' }
      },

Our robot also only has one device (or at least only one we're concerned about),
an LED on pin 13.

      devices: {
        led: { driver: 'led', pin: 13 }
      },

Next, we'll define the robot's work, which will be toggling the LED every
second:

      work: function(my) {
        every((1).second(), my.led.toggle);
      }

And that's all the parts of our robot. All that's left is to start it.

    }).start();
