Shimmer 3 - 2.4.2. Bluetooth Pairing in Linux; 2.5. Setting up a Shimmer Data Stream

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Realtime Technologies Ltd Shimmer User Manual

2.4.2. Bluetooth Pairing in Linux

The operation of pairing a Shimmer device in Linux may vary from distribution to distribution. The

following procedure has been tested in Ubuntu 10.04, Slackware 13 and OpenSuse 11.3.

All the commands given here should be entered from the command line (in a terminal window).

Bluetooth Radio

The BlueZ Bluetooth libraries and tools need to be installed. See http://www.bluez.org for details.

Ensure the Bluetooth radio is available by running the hciconfig command.

tiny2@ShimmerLive:~/Desktop$ hciconfig

hci0: Type: USB

BD Address: 00:19:0E:0A:D6:62 ACL MTU: 1021:8 SCO MTU: 64:1

UP RUNNING PSCAN

RX bytes:1013 acl:0 sco:0 events:34 errors:0

TX bytes:1347 acl:0 sco:0 commands:34 errors:0

Search for Shimmer Devices

Scan for the Shimmer by running the hcitool scan command.

tiny2@ShimmerLive:~/Desktop$ hcitool scan

Scanning ...

00:06:66:42:22:BD RN42-22BD

00:A0:96:28:DF:E8 FireFly-DFE8

00:06:66:42:24:18 RN42-2418

Pair to a Shimmer device

To use the Shimmer, for example, with Bluetooth radio ID “RN42-2418”, it must be bound to an

rfcomm device. The rfcomm bind <n> <MAC_ADDRESS> command achieves this. The <n> parameter

gives the rfcomm device number, which must be different for each Shimmer paired, and the

<MAC_ADDRESS> parameter is the Shimmers MAC address which can be obtained from the hcitool

scan output above. This command normally needs root privileges, so “sudo” is used.

tiny2@ShimmerLive:~/Desktop$ sudo rfcomm bind 0 00:06:66:42:24:18

[sudo] password for tiny2:

Verify a Successful Bluetooth Pairing

Running the rfcomm command with no arguments shows which Shimmer is bound to which rfcomm

device, along with the current connection status.

tiny2@ShimmerLive:~/Desktop$ rfcomm

rfcomm0: 00:06:66:42:24:18 channel 1 clean

rfcomm1: 00:A0:96:28:DF:E8 channel 1 clean

2.5. Setting up a Shimmer data stream

2.5.1. Setting up a Shimmer data stream on Linux

ShimmerCapture is a host side application used to configure a single Shimmer and stream data from

it. The application is available for the Linux operating system and is available from the Shimmer User

Resources or for download from the members section of the Shimmer website. Follow the steps

below on setting up a stream in ShimmerCapture.

Other manuals for Shimmer 3