mraa

libmraa - Low Level Skeleton Library for Communication on GNU/Linux platforms
=============================================================================

Libmraa is a C/C++ library with bindings to Java, Python and JavaScript to
interface with the IO on Galileo, Edison & other platforms, with a structured
and sane API where port names/numbering matches the board that you are on. Use
of libmraa does not tie you to specific hardware with board detection done at
runtime you can create portable code that will work across the supported
platforms.

The intent is to make it easier for developers and sensor manufacturers to map
their sensors & actuators on top of supported hardware and to allow control of
low level communication protocol by high level languages & constructs.

 

Supported Boards
================

X86
---
* Galileo Gen 1 - Rev D
* Galileo Gen 2 - Rev H
* Edison
* Intel DE3815
* Minnowboard
* NUC 5th generation
* UP
* UP Squared
* Intel Joule

ARM
---
* Raspberry Pi
* Banana Pi
* Beaglebone Black
* phyBOARD-Wega
* 96Boards

MIPS
---
* Linkit Smart 7688
* Onion Omega2

FPGA
----
* DE10-Nano

USB
---
* FT4222
* Firmata

I2C
---
* GrovePi

Mock
----
* Generic simulated board

JSON platform
----
* Platform loading

Installing on your board
========================

Installing on Ubuntu
--------------------

Here is a PPA for installing on ubuntu:
https://launchpad.net/~mraa/+archive/ubuntu/mraa

``bash
sudo add-apt-repository ppa:mraa/mraa
sudo apt-get update
sudo apt-get install libmraa1 libmraa-dev libmraa-java python-mraa python3-mraa node-mraa mraa-tools
`

Running MRAA tools or applications on Ubuntu systems requires elevated permissions
(e.g. run with sudo).

Install on Arch Linux
---------------------

There is an AUR package for mraa here: https://aur.archlinux.org/packages/mraa

Install on openSUSE
-------------------

`bash
REPO="openSUSE_Tumbleweed"
if test "$(arch)" == "aarch64"; then
REPO="openSUSE_Factory_ARM"
fi
sudo zypper ar http://download.opensuse.org/repositories/hardware/$REPO/hardware.repo
sudo zypper in mraa
`

Installing for Node.js only
---------------------------

> Note: Node.js 7.0.0+ is not currently supported. You'll have to downgrade to 6.x.x.

You can also install just the node.js mraa module by using npm. You will need a
C++ compiler and the node development headers, however it's not required to
have SWIG installed.

`bash
npm install mraa
`

Note that installing mraa in this way builds mraa without json-c so you cannot
use mraa_init_json_platform(). Also building this way means the mraa.node
includes a static version of libmraa rather than relying on a dynamic library
in /usr/lib.

Subplatforms (i.e. Firmata) have to be added manually with this kind of install
from your application, as shown in this example.

Installing on Intel 32bit Yocto based opkg image
------------------------------------------------

See the section below on compiling or use our repository to install on a glibc
based yocto poky image that supports opkg. Adding this repository is as simple
as and you'll have the latest stable tagged build of mraa installed!

` bash
echo "src mraa-upm http://iotdk.intel.com/repos/3.5/intelgalactic/opkg/i586" > /etc/opkg/mraa-upm.conf
opkg update
opkg install mraa
`

If you would like to get the latest & greatest builds from master HEAD you can
use our -dev repository

`bash
echo "src mraa-upm http://iotdk.intel.com/repos/3.5/intelgalactic-dev/opkg/i586" > /etc/opkg/mraa-upm.conf
opkg update
opkg install mraa
``

Compiling
=========

See documentation on building

Examples
========

See the examples available for various languages

Debugging
=========

Sometimes it just doesn't want to work, let us try and help you, you can file
issues in github or join us in #mraa on freenode IRC, hang around for a little
while because we're not necessarily on 24/7, but we'll get back to you! Have a
glance at our debugging page too.

API Documentation
=================

Contact Us
==========

To ask questions either file issues in github or send emails on our mailing
list. You might also catch us on
the mraa channel on freenode IRC.

See the Contribution documentation for more details.

Changelog
=========

Version changelog here.