Bluetooth/Serial

Using an XO laptop as a serial console via Bluetooth.

Ingredients

• an XO-4 laptop as console, the host, with either 8787 wireless adapter or a Bluetooth USB adapter,
• the XO laptop under test, the target,
• a Sparkfun BlueSMiRF or Mate Bluetooth serial modem,
• a 3.3V supply for the modem.

Recipe

Wire Target

• connect ground, TX, and RX from the XO to the modem,
• connect 3.3V supply to modem,

Configure Host

• install the screen package,

sudo yum install -y screen

• copy bluez-simple-agent and bluez-test-device from a system running Ubuntu or Debian (since Fedora doesn't package these scripts in the bluez package),

• start the Bluetooth server,

sudo chkconfig bluetooth on
sudo service bluetooth start

Connect via Bluetooth

• scan for and identify the modem,

hcitool scan

• pair the host and the modem,

sudo bluez-simple-agent hci0 68:37:D3:00:06:66
sudo bluez-test-device trusted 68:37:D3:00:06:66

• bind the connection to a terminal device,

sudo rfcomm bind 0 68:37:D3:00:06:66

• start screen and begin typing

screen /dev/rfcomm0 115200

May also be necessary to deal with data corruption introduced by Modem Manager.