Any OpenTX radio must have OpenTX 2.2.x or higher and LUA scripts in the root of SD card.
In this tutorial we will be using the OpenTX radio interface to configure the transmitter and receiver. TheMicro Transmitter does not have a LED display on the back like the Full transmitter does. Similar configuration can be performed using the full TBS transmitter LED screen and joystick buttons.
Power on your radio and power on your receiver. The Crossfire Nano receiver should be flashing green.
Select Crossfire and short press enter button.
Long press enter on crossfire.lua
Short press enter on Execute
Confirm Transmitter Settings
Before we connect to the receiver, make sure that the Crossfire Transmitter is on the right frequency and power.
With XF Transmitter or XF Micro Transmtiter selected
- X-Lite – Short press right on joystick
- X9D – Short press enter
Verify that the transmitter frequency is setup for your region. You can also change the Max Power, Dynamic Power. Version information is at the bottom of this menu.
Binding And Updating Receiver
Select Bind and short press enter or short press joystick right on your radio. If your receiver needs updating it will prompt you. Hit enter on your radio to update the receiver.
Wait for the receiver to finish updating. Do not power off anything.
When the Update Receiver is done, the Crossfire Nano receiver will flash green rapidly while the it finishing loading. When theis done loading and binding is complete the green light will stay solid. If you have audio features on your radio working you should hear, “RF singal low” when it successfully connects.
Hit the exit button on your radio to configure the Crossfire Nano receiver.
Configure Crossfire Receiver
You should now see a several options. What we are viewing is the same as rerunning the crossfire.lua scripts we did several steps up. Sometimes you may need to rerun the crossfire.lua scripts if you see only parts of the crossifre menus.
Select XF Nano RX and short press enter or short press right on joystick.
Mode is the number of channels you want to use. In this example we are using 12.
Make sure telemetry is On. Set Failsafe to Cut. Scroll down to Output Map. Set Output 1 to CRSF and Output 2 to CRSF RX.
Scroll down to Channel Map. To configure the LQ or RSSI for ourand we set LQ on one of our channels. In this example we are using 12 channels and setting LQ on Dst.Ch12. Which is channel 12 or aux8 in BetaFlight. If you set this to channel 8, the BetaFlight aux would be aux4.
You have now bound, updated and configured the TBS Crossfire Transmitter and nano receiver.