GetBlue Bluetooth SPP Problems: Android Troubleshooting

Bluetooth SPP Data Acquisition

GetBlue is an Android App which captures data from a data-source (Bluetooth SPP, TCP and Camera Scanners) and forwards the collected data to an adjustable data-sink (TCP, HTTP, File, Display, Online Spreadheets provided by Google Docs, GetBlue virtual keyboard). Data collection is done completely in the background.

Bluetooth SPP Connection Problems

Recently some users reported problems when using Bluetooth SPP (Serial Port Profile) devices with GetBlue: A Bluetooth SPP device can be paired without problems but GetBlue is unable to connect to it.

A Possible Solution

In order to avoid the connection problems please do the following in EXACTLY the given order:

a) Disable all GetBlue functions: Set datasink to "None", do NOT use keyboard output and deactivate the GetBlue keyboard in Android settings (required only if previously enabled).
b) Reboot the phone
c) Enable Bluetooth
d) Pair the Bluetooth device with your handset (Android settings)
e) Start GetBlue
f) Adjust datasource - select the device just paired
g) Press start in GetBlue

Background

The reason for this nasty behavior is a buggy Bluetooth implementation in the firmware of the handsets. HTC Desire, HTC Legend, HTC Wildfire, SonyEricson X10, Samsung Galaxy S and possibly more models are affected.
Google G1, G2 and Motorola Milestone work perfectly.

Please let us know your smart-phone model if you are experiencing this bug. We will update the list above accordingly.

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Video: Android Bluetooth SPP Connectivity for All Apps

TEC-IT released a short video on YouTube which demonstrates the use of the Bluetooth Reader GetBlue.

You will learn how to configure GetBlue in order to be used as Bluetooth software wedge. The Bluetooth barcode scanner must be paired with your Android handset, then it is adjusted as input device for GetBlue. As data-sink (the target application for the scanned data) the GetBlue Keyboard is selected. Using this configuration  it is possible to inject captured barcode scanner data as virtual user input into each application.

See for yourself:



GetBlue acts as "middleware" between hardware and apps. Thus, each (legacy) Bluetooth bar code scanner supporting the serial port profile can be used.

The video quality is satisfying - but far away from perfect. We will produce a HD video with sound in the near future. In the meantime we are awaiting your video comments!

Many thanks!

Video: How to use Bluetooth Barcode Scanners with Android

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Automated Data Acquisition for Android - Update

TEC-IT (http://www.tec-it.com) published version 0.7 of the Android data acquisition app GetBlue!


GetBlue captures device data and saves this data directly to a local file, to a Google Spreadsheet or forwards it to adjustable HTTP/TCP data logging servers. Bi-directional communication is supported, server responses as well as manually entered data can be sent to the connected device.


Currently the following devices are supported:

• Any Bluetooth device supporting the Serial Port Profile (SPP, RFCOMM),
• Any TCP/IP device (IP-Address/Port combination), 
• And new in this version: any installed camera barcode scanner (e.g. the ZXing camera barcode scanner, cyrket market  information) 

Currently GetBlue is available as freeware - the manual data acquisition functions are available unlimited. Automated data acquisition functionality (like uploading captured data to a TCP data logger) are slightly restricted. All data collection parameters are adjustable by the user via the Settings dialog. The data-source,  the target server, various data capturing parameters like time-outs, retries, data packet size, etc. are adjustable.

Android owners are using GetBlue for a variety of functions:

• Testing app for serial Bluetooth devices
• Automated data collection
• Simple TCP debugger
• Bluetooth tester for Android 1.5/1.6 or higher

TEC-IT continues to enhance and extend the app. Every feedback from users is highly welcome. Check out the current version for yourself: Android Market Link (install it directly from the Android Market using your handset).

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