Raspberry Pi bluetooth

Just noting some success with setting up a Raspberry Pi with Bluetooth support.  My goal is to get it working with the Wii Remote for projects that I and my son find.

Raspberry Pi Model B
Cirago Bluetooth 3.0 High Speed & Wi-Fi combo USB mini adapter; BTA7300

Linux version 3.10.32+ (dc4@dc4-arm-01)
(gcc version 4.7.2 20120731 (prerelease) (crosstool-NG linaro-1.13.1+bzr2458 - Linaro GCC 2012.08) ) #648 PREEMPT Fri Feb 28 16:29:56 GMT 2014

Notes:

• Plugged directly into PI.
• Had previously used a different Wi-fi adapter but unplugged it, plugged this in and wi-fi worked (once I added the MAC to the router filter to allow access)
• I keep the os/firmware updated fairly regularly – updated before these installs
• Using the default available Bluez modules (4.x) instead of the 5.0 which I would have to compile.  I may try to compile 5.0 at some point it appears this should work for some things.  Here is what I installed.
• sudo apt-get install bluez
• sudo apt-get install bluez-tools
• sudo apt-get install bluez-utils
• sudo apt-get install bluez-firmware
• I have not fully played with the Bluetooth but was able to see my cell phone and briefly had it paired (left a registration on the phone) but I couldn’t think of anything useful at the time to try other than list out some info.
• bt-device --connect <mac>
• bt-device --services <mac> 

I have not fully decided what language to use when playing with the Bluetooth.  It appears that C, Python and Java are possible.  I will likely install the wrapper libs and such for Python and try that since that is likely easier for my son.  The Java support appears to be via JSR-82 but it sounds like that has some shortcomings.

Python bindings
sudo apt-get install python-smbus python-cwiid python-scipy python-numpy python-pygame python-setuptools libsdl-dev

Successful testing of wii Remote!
Using the site below related to Python & Wii Remote, I was able to see the button values changing and mess with the LEDs.

Partial excerpts from the www.cl.cam.ac.uk site [mentioned below].  Pulling the example in here just to have a small but functional one in a single place.  Refer to the source site referenced for more details on what the steps are doing.

sudo hciconfig hci0 piscan

python

import cwiid

# I found it most reliable to press buttons 1 & 2 just
# prior to executing the next statement interactively.

wm = cwiid.Wiimote()

import time
for i in range(16):
  wm.led = i
  time.sleep(0.5)

# Interactively, I pressed an extra return to get it running. I am
# not a Python programmer so even little things are nice to note...

Resources

I found this helpful for the Bluetooth.

http://stlinux.com/kernel/bluetooth/how-to-run-BlueZ

man –k bt was helpful in finding the related commands after installing everything.

bt-device

bt-adapter

bt-agent

bt-input

bt-monitor

bt-network

bt-obex

bt-serial

JSR 82 - Bluetooth

Some Bluetooth/Python info
http://www.cl.cam.ac.uk/projects/raspberrypi/tutorials/robot/downloads/

Python interacting with Wiimote
http://www.cl.cam.ac.uk/projects/raspberrypi/tutorials/robot/wiimote/

Another good reference & example is:
http://www.raspberrypi-spy.co.uk/2013/02/nintendo-wii-remote-python-and-the-raspberry-pi/