Manually using Bluetooth

Revision as of 21:53, 6 April 2007

At the moment, we've just started to introduce Bluetooth into our Neo1973 Hardware.

We have quite a lot of plans about what exactly Bluetooth should be used for.

Bluetooth Functions

HID (Human Input Device)

Being able to use HID devices

We want to be able to use a bluetooth keyboard to type into the various applications of our Neo1973.

Acting as HID device

We want to be able to use the Neo1973 as a HID device, being able to use it as controller for presentations.

OBEX

Networking

Bluetooth should behave just like our usbnet and provide full TCP/IP access to the phone. BNEP has to be used.

On the laptop:

• Start bluetooth

elara /home/alphaone # /etc/init.d/bluetooth start

• Start pand as server

elara /home/alphaone # pand -s

• As soon as pand is started on the phone configure your IP address

elara /home/alphaone # ip a add 10.0.0.1/24 dev bnep0
elara /home/alphaone # ip l set bnep0 up

• Configure IP forwarding and masquerading to your liking

On the phone:

• Insert the module and power up bluetooth

root@fic-gta01:~$ modprobe gta01-pm-bt
root@fic-gta01:~$ echo "1" > /sys/bus/platform/devices/gta01-pm-bt.0/power_on 

• Scan for the laptop

root@fic-gta01:~$ hcitool scan
Scanning ...
        00:0E:6D:C0:0l:6A       Sho
        00:20:E0:5A:FE:C8       BlueZ (0)

• Connect to the laptop pand

root@fic-gta01:~$ pand -c 00:20:E0:5A:FE:C8

• Configure your IP address

ip a add 10.0.0.2/24 dev bnep0
ip r add default via 10.0.0.1

• Enjoy

root@fic-gta01:~$ wget http://www-public.tu-bs.de:8080/~y0019680/tmp/thereisnophone.mp3 
Connecting to www-public.tu-bs.de[134.169.9.108]:8080
thereisnophone.mp3   100****************************************************|   266 KB 00:00:00 ETA
root@fic-gta01:~$ madplay thereisnophone.mp3 
MPEG Audio Decoder 0.15.2 (beta) - Copyright (C) 2000-2004 Robert Leslie et al.
630 frames decoded (0:00:22.6), -0.9 dB peak amplitude, 0 clipped samples

A2DP

Further reading

http://www.holtmann.org/papers/bluetooth/ols2006_slides.pdf http://wiki.bluez.org/wiki/Audio#org.bluez.Audio