This turned out to be a problem with the Debian Squeeze bluez default configuration. If anyone else hits this problem, disable the pnat plugin by editing /etc/bluetooth/main.conf: DisablePlugins = pnat Then restart bluetoothd. $ sudo invoke-rc.d bluetooth restart No changes were required to the PyBluez code.
SDP is absent in BLE. Broadcast/advertise frame and GATT client/server are used instead. Several links: BlueZ gatttool: command line tool to run common GATT procedures BlueZ GATT’s ready profiles hint: DBUS GATT and DBUS example How can I connect to the FitBit Zip over Bluetooth 4.0 LE on Linux with bluez? Bluetooth Low Energy: listening … Read more
With your Bluetooth dongle plugged in, running the following command will tell you the device name and give its state: $ hciconfig The output should look something like this: hci0: Type: BR/EDR Bus: USB BD Address: 00:01:02:aa:bb:cc ACL MTU: 1021:8 SCO MTU: 64:1 DOWN RX bytes:1000 acl:0 sco:0 events:47 errors:0 TX bytes:1072 acl:0 sco:0 commands:47 … Read more
Try this… Run gatttool -b <MAC Address> –interactive like you did before. You’ll get a prompt and then you type connect. You should see a CON in the prompt indicating that you’ve connected to the device. Then type char-read-uuid 2902. You should get a list of all CCC (Client Characteristic Configuration) attributes on the device. … Read more