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cylon-raspi

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Readme

Cylon.js For Raspberry Pi

Cylon.js (http://cylonjs.com) is a JavaScript framework for robotics and physical computing using Node.js

This module provides an adaptor for the Raspberry Pi single board computer (http://www.raspberrypi.org/).

Want to use Ruby on robots? Check out our sister project Artoo (http://artoo.io)

How to Install

Install the module with:

$ npm install cylon cylon-raspi

How to Use

This small program causes an LED to blink.

var Cylon = require("cylon");

Cylon.robot({
  connections: {
    raspi: { adaptor: 'raspi' }
  },

  devices: {
    led: { driver: 'led', pin: 11 }
  },

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

How to Connect

Connecting to Raspberry Pi GPIO

This module only works on a real Raspberry Pi. Do not bother trying on any other kind of computer it will not work. Also note you will need to connect actual circuits to the Raspberry Pi's GPIO pins.

Enabling the Raspberry Pi i2c on Raspbian

You must add these two entries to your /etc/modules

i2c-bcm2708
i2c-dev

You must also ensure that these entries are commented in your /etc/modprobe.d/raspi-blacklist.conf

#blacklist spi-bcm2708
#blacklist i2c-bcm2708

Now restart your raspberry pi.

Enabling PWM output on GPIO pins.

You need to install and have pi-blaster running in the raspberry-pi, you can follow the instructions for pi-blaster install in the pi-blaster repo here:

https://github.com/sarfata/pi-blaster

Available PINS

The following object depicts available pins for all revisions of raspberry-pi, the key is the actual number of the physical pin header on the board,the value is the GPIO pin number assigned by the OS, for the pins with changes between board revisions, the value contains the variations of GPIO pin number assignment between them (eg.rev1, rev2, rev3).

You should just be concerned with the key (number of the physical pin header on the board), Cylon.JS takes care of the board revision and GPIO pin numbers for you, this full list is for reference only.

PINS = {
  3: {
    rev1: 0,
    rev2: 2,
    rev3: 2
  },
  5: {
    rev1: 1,
    rev2: 3,
    rev3: 3
  },
  7: 4,
  8: 14,
  10: 15,
  11: 17,
  12: 18,
  13: {
    rev1: 21,
    rev2: 27,
    rev3: 27
  },
  15: 22,
  16: 23,
  18: 24,
  19: 10,
  21: 9,
  22: 25,
  23: 11,
  24: 8,
  29: {
    rev3: 5
  },
  31: {
    rev3: 6
  },
  32: {
    rev3: 12
  },
  33: {
    rev3: 13
  },
  35: {
    rev3: 19
  },
  36: {
    rev3: 16
  },
  37: {
    rev3: 26
  },
  38: {
    rev3: 20
  },
  40: {
    rev3: 21
  }
};

Documentation

We're busy adding documentation to our web site at http://cylonjs.com/ please check there as we continue to work on Cylon.js

Thank you!

Contributing

All patches must be provided under the Apache 2.0 License
Please use the -s option in git to "sign off" that the commit is your work and you are providing it under the Apache 2.0 License
Submit a Github Pull Request to the appropriate branch and ideally discuss the changes with us in IRC.
We will look at the patch, test it out, and give you feedback.
Avoid doing minor whitespace changes, renamings, etc. along with merged content. These will be done by the maintainers from time to time but they can complicate merges and should be done seperately.
Take care to maintain the existing coding style.
Add unit tests for any new or changed functionality & Lint and test your code using Grunt.
All pull requests should be "fast forward"
- If there are commits after yours use “git rebase -i ”
- If you have local changes you may need to use “git stash”
- For git help see progit which is an awesome (and free) book on git

Release History

Version 0.15.1 - Install node-i2c using script based on node version

Version 0.15.0 - Compatibility with Cylon 0.22.0

Version 0.14.1 - Fix pin and pi-blaster compatability for different board revisions

Version 0.14.0 - Compatibility with Cylon 0.21.0

Version 0.13.0 - Compatibility with Cylon 0.20.0

Version 0.12.0 - Compatibility with Cylon 0.19.0

Version 0.11.0 - Compatibility with Cylon 0.18.0

Version 0.10.0 - Compatibility with Cylon 0.16.0

Version 0.9.1 - Add peerDependencies to package.json

Version 0.9.0 - Compatibility with Cylon 0.15.0

Version 0.8.1 - Fix a bug with PWM pins

Version 0.8.0 - Compatibility with Cylon 0.14.0, remove node-namespace.

Version 0.7.0 - Release for cylon 0.12.0

Version 0.6.2 - Fixes bug with connection not being set on adaptor.

Version 0.6.0 - Release for cylon 0.11.0, refactor into pure JavaScript, i2c bugfixes

Version 0.5.0 - Release for cylon 0.10.0

Version 0.4.0 - Release for cylon 0.9.0

Version 0.3.0 - Release for cylon 0.8.0

Version 0.2.0 - Release for cylon 0.7.0

Version 0.1.0 - Initial release

cylon-raspi