RADIO MODEM OPTION will give full down-link and up-link telemetry for All flight controllers. The Dragon Link will work like any stand alone Radio Modem, but at much greater range and distance, all while maintaining full long range RC control. Using the Radio Modem option of the Dragon link system will NOT reduce Radio Control range, performance, or affect it in any way. Even if your radio modem range is shorter due to using the Micro Receiver or Nano Receiver, or if you loose Radio Modem signal, the RC control will just always be there at full 50 Kilometer Range.
IMPORTANT RECOMMENDATIONS FOR FULL RADIO MODEM TELEMTRY
To compensate for the very high bandwidth that the Full Radio Modem feature uses, we strongly recommend that you use the Dragon Link LARGE 1000 mW RECEIVER. The Large 1000 mW telemetry Receiver will give you much further telemetry range ( approximately 400 % telemetry range increase ) than the standard 25 mW Micro Receiver will provide. ( NOTE RC range on both receivers is approximately 50 Kilometers ), telemetry range does NOT affect RC range.
The Dragon Link Radio Modem will work with ANY flight controller or device that you would normally use with a stand alone Radio Modem.
The following connections are specific to the PixRacer. If you have a full sized PixHawk, see the next section below for connection information.
Splice a Dragon Link UEXP cable to the PixRacer Telemetry cable as shown in the picture to the left.
PIXRACER TELEMETRY PORT CONNECTIONS
Here are the connections from the Dragon Link UEXP port to the PixRacer TELEM 2 port.
PIXRACER GPS SETUP
Splice your GPS to the Pixracer cable. If you have our high performance GPS, connect the wires as shown in the picture to the left.
Here are the pinouts for the PixRacer GPS port.
PIXRACER COMPLETED CONNECTIONS
Connect the cable you made to the Dragon Link UEXP port, and to the TELEM 2 port on the Pixracer as shown in the picture to the left.
Connect a GPS to the Pixracer as shown in the picture to the left. You can use any GPS that is compatible with Pixhawk. The GPS shown is the high accuracy M8N GPS from our web store and gives amazing accuracy and very fast real time updates.
PIXRACER TO DRAGON LINK RECEIVER CONNECTIONS
Connect the RC cable supplied with the Pixracer to the RC IN port of the Pixracer. Connect the BLACK, RED, and WHITE terminals to the Dragon Link Receiver servo pins. Make sure you connect these to the PPM output channel of the Dragon Link receiver. See example in the picture to the left.
BLACK = Servo Rail GROUND
RED = + 5 Volt servo Rail
WHITE = PPM output pin on Receiver
FULL SIZE PIXHAWK CONNECTOIN:
Splice a Dragon Link UEXP cable to the telemetry cable supplied with the Pixhawk as shown in the following pictures and connect it to the TELEM2 port. Use the supplied servo cable to connect the PPM output of the Dragon Link receiver to the RC IN pins of the Pixhawk.
FULL SIZE PIXHAWK TELEMETRY CONNECTIONS
Connect the Dragon Link Receiver to the Pixhawk Telemetry as shown in the picture to the left.
FULL SIZED PIXHAWK TELEMETRY CABLE
Splice the Dragon Link UEXP cable to the Pixhawk Telemetry cable as shown in the picture to the left.
SET UP YOUR DRAGON LINK RECEIVER:
You need to start from FACTORY DEFAULT settings on your receiver. If you have changed things, we recommend that you go to the GUI and choose RESET HARDWARE TO FACTORY SETTINGS, and then click the SAVE SETTINGS bar at the bottom. This will allow you to start from zero and change only the settings needed for Pixhawk Telemetry.
Connect your receiver via the micro USB port to the Dragon Link GUI configuration utility. Go to the RECEIVER OUTPUTS tab on the left, and set the UEXP port as follows:
UEXP CON PIN 3 = SERIAL IN
UEXP CON PIN 4 = SERIAL OUT
Click the blue SAVE SETTINGS bar at the bottom of the screen.
MORE DRAGON LINK RECEIVER SETTINGS
Click the " Radio Modem " tab of the receiver, and set it up as you see on the left. Choose the Input / output baud rate at 19,200 from the drop down menu, then click the SET BAUD button.
CONFIGURING THE DRAGON LINK TRANSMITTER:
You need to start from FACTORY DEFAULT settings on your transmitter. If you have changed things, we recommend that you go to the GUI and choose RESET HARDWARE TO FACTORY SETTINGS, and then click the SAVE SETTINGS bar at the bottom. This will allow you to start from zero and change only the settings needed for Pixhawk Telemetry.
Connect the Dragon Link Transmitter to the GUI configuration utility. Click on the " RF " tab on the left, and you will see the screen to your left. Change the following settings:
Bidir Bandwidth = High
RF Preference = Fastest Update-Rate
Click the SAVE SETTINGS bar at the bottom of the screen
�MORE TRANSMITTER SETTINGS
Click on the " External Connections " tab to the left, and you will see this screen. Make the following changes:
Bluetooth = Radio Modem
Baudrate = 57600
Click the " SAVE SETTINGS " bar on the bottom of the screen. Repower and REBIND system for changes to take effect.
Download and install MISSION PLANNER software to your Windows computer. You can download it at http://ardupilot.org/planner/
Even if you are going to use a tablet or phone to track your plane, you will still need to update and configure your Pixracer using Mission Planner.
1. Start Mission Planner, then connect your Pixracer to your computer with a micro USB cable.
2. Update the firmware on your Pixracer.
* Make sure you disconnect and restart Pixracer after firmware update.
3 Choose the CONNECT at the top right of Mission Planner.
3. RESET TO DEFAULT the configuration on your Pixracer.
MISSION PLANNER SETTINGS
Using the FULL PARAMETER LIST at the left, change the settings on your Pixracer as follows. All Parameters are listed in alphabetical order, so finding each one in this huge list is not hard.
VERY IMPORTANT: Make sure you click the SAVE PARAMS box to the upper right. If you do not SAVE PARAMS, your changes will not be saved and will not work.
At this point, rebind, repower everything, and the system should work if you connect to Mission planner via Bluetooth, Serial Data, or USB mode.
TELEMETRY VIA TOWER ON ANDROID TABLET OR PHONE
1. Install TOWER software on your android device by downloading it from Google Play.
2. Pair your Dragon Link Transmitter Bluetooth to your android device.
3. Open the TOWER app.
4. Choose connect via Bluetooth, and choose the DRAGONLINK Bluetooth device in the tower connection menu.
5. You should now see the telemetry and moving map on Tower.