UART if. uart0 splitter & Level shifters w/o internal pullups

In some cases like using max3232 or similar level shifters that do not have internal pullups on ttl side it may be important to add external pullup resistor to U1 leg 11 to keep that input '1' state.
If you have problems with declare/flight dl from uart0 please measure voltage level from anode leg of one of splitter diode. Measure points are shown in picture.
If you see voltage(close to zero) like first picture, pullup resistor is needed!

Our next pcb version have place for additional pullup. in this picture voltage is measured after pullup is added.  Value of pull up is not critical, you can use example 100kohm or 470kohm or something between these values...

If you have older pcb version, add pullup resistor between U1 legs 16 and 11.

SOARTRONIC - FLARM data cables.

If you have FLARM F4/F5/F6/F7/F8/F9 with two dataports, RJ45 and RJ12, pay attention! use RJ45 port (marked as power/data) with SOARTRONIC devices. RJ45 port provides 19200 baud rate which is set also as default  in SOARTRONIC BT1/2. 

F series RJ12 port only transmit data at 4800 baud so it is not wise idea to use it.

You can use 1:1 connected RJ45 - RJ45 cable with these devices.

LX FLARM's (redbox & others) that only have RJ12 dataport, you must use RJ45 - RJ12 cable.

To make correct RJ45 -RJ12 cable, simply leave 1 and 8 pins out from RJ45 connector and connect rest as:

2-1
3-2
4-3
5-4
6-5
7-6

For more information, please refer the BT1 manuals from http://www.soartronic.net/support

SOARTRONIC BT4 bluetooth low energy modules.

In the near future we are building the first batch of BT4 module based on bluetooth4 low energy technology.
This new version includes almost the same functions as our popular BT1 module, the difference is in the newer, faster version of Bluetooth.

Please note! the target device must have a android version 4.3 or later and must support Bluetooth 4 / smart / low energy technology and xcsoar 6.8 is recommended.

For operating instructions and wiring examples please refer the BT1 manuals from http://www.soartronic.net/support .

Ask availability by e-mail

Flight download problems

If you have problems in declaring tasks or downloading logs from FLARM with BT1/BT2, please check that in xcsoar/devices K6bt is OFF and ignore checksum is OFF.
You may have to restart the xcsoar to make changes to take effect...

For sale! Kobo mini + usb-serialport + charge

SOARTONIC BT4_LE bluetooth 4.0 low energy module

Coming soon.