Hacking CSR Bluetooth BC4-EXT dongle

I like these CSR BC4 chips!

You can update its firmware to become a sniffer:

www.evilgenius.de/wp-content/uploads/2008/03/diy_bt_sniffer.pdf‎

You can update its firmware to become a bluetooth node to control GPIO and point to point communication:

http://pfalcon-oe.blogspot.com.br/2012/04/opensource-sensor-node-firmware-for.html

More information about these nice chip:

Flashing a new firmware:

http://byron76.blogspot.com.br/2011/09/i-hope-you-have-good-time-soldering.html

Modifying the firmware from the cheap BC4 module you bought from DX.COM :

http://www.efihacks.com/using-bluetooth-experiences-part-1/

http://www.efihacks.com/using-bluetooth-experiences-part-2/

http://www.efihacks.com/using-bluetooth-experiences-part-3/

http://www.efihacks.com/using-bluetooth-experiences-part-4/

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