New BT7474 user interface.
The new user interface can be started using Java Web Start. Head over to BT747.free.fr and click on Install desktop version. You will have to trust the certificate every time you start the application, unless you select to always trust Mario’s certificate. On the Mac, this can be done by hitting the Show certificate button. Select the Always trust… checkbox and click the Trust button:
One reason why I love BT747 is that I have lots of options to control the GPS data it imports/exports. For example: when my Holux-M241 runs out of battery while writing a log record, it it tends to write silly data into that record. These records usually have a weird date in them. Unfiltered, these records may cause problems in applications that process your exported GPS data. BT747 is able to filter out corrupt dates by specifying a valid date range for all exported records. Records outside this range will be dropped.
Can’t connect to your GPS logger?
Click the INFO-tab to see what problem occured while BT747 tried to talk to your GPS logger.
Using USB (Holux M-241 & Mac specific)
First, install Silabs’ USB to UART bridge software. Download it here.
In BT747, open the connection drop down list and select USB (for Linux, Mac). I’m only able to download data from the GPS logger if I select 38400 bps. Using 115200 bps the download progress bar doesn’t show any progress.
Using Bluetooth (Holux M-241 & Mac specific)
Follow steps 2 and 3 in my earlier GPS logger Bluetooth guide to pair the GPS logger to your Mac. In BT747, open the Connection drop down list and look for an entry called /dev/cu.HOLUX_M-241-SPPSlave-1 and see if you can connect to your logger. By the way, the default setting for Bluetooth in BT747 BLUETOOTH (for Mac) didn’t work on my Mac, I had to select the SPPSlave device.
There should be an entry indicating the name of your Holux M-241 Bluetooth device. If not, you most likely didn’t pair it correctly. Make sure you didn’t disable Bluetooth in your M-241 settings. The nice thing about the Bluetooth connection is that it doesn’t require any additional drivers, it works out of the box. On the other hand, disabling Bluetooth in the M-241 will extend battery life quite a bit (needs at least firmware revision 1.12).
Trying to open /dev/cu.serial-0001 gnu.io.PortInUseException: Unknown Application
Open Terminal and paste this command in it:
sudo mkdir /var/lock && sudo chmod 777 /var/lock
You will have to supply your admin password. Press Connect again in BT747, it should be able to connect now.
Split your tracks!
There’s a very useful feature in BT747 that lets you split your exported GPS coordinates into multiple files. This comes in very handy after a holiday trip with lots and lots of accumulated GPS data. Instead of exporting all GPS data into one large file, BT747 is able to split the data on a daily basis. Even more advanced is the possibility to split the data according to what belongs together. This gives you much tighter control over what’s being exported. Select One file per track and set your preferred New track after value.
Supported GPS loggers
- Holux M-241
- BT Q-1000/Q-1200
- iTrek z1
- BlueMax GPS-4043
- Qstartz BT-Q1300
- i-Blue 757
and many more! Check this page if your logger is supported: BT747 compatible GPS loggers