johnny-five/docs/servo-digital.md

The JavaScript Arduino Programming Framework.

# Servo Digital

Run with:
```bash
node eg/servo-digital.js
```


```javascript
var five = require("johnny-five"),
  board, slider, servo, range;

board = new five.Board();

board.on("ready", function() {

  // The Servo class defaults to the standard 180°,
  // This example program is intended to run with a
  // 90° digital servo.
  range = [0, 90];

  // Create a new servo instance on PWM 10, w/ a 0-90° range
  servo = new five.Servo({
    pin: 10,
    range: range
  });

  // °
  slider = new five.Sensor({
    pin: "A0",
    freq: 50
  });


  // Scale the slider's value to fit in the servo's
  // movement range. When the slider position changes
  // update the servo's position
  slider.scale(range).on("slide", function() {

    servo.to(Math.floor(this.value));

  });
});

```


## Breadboard/Illustration


![docs/breadboard/servo-digital.png](breadboard/servo-digital.png)
[docs/breadboard/servo-digital.fzz](breadboard/servo-digital.fzz)









## Contributing
All contributions must adhere to the [Idiomatic.js Style Guide](https://github.com/rwldrn/idiomatic.js),
by maintaining the existing coding style. Add unit tests for any new or changed functionality. Lint and test your code using [grunt](https://github.com/cowboy/grunt).

## License
Copyright (c) 2012 Rick Waldron <waldron.rick@gmail.com>
Licensed under the MIT license.