Setting Up the Crossfire Nano

Revolt Unify Nano Pinout Diagram

Over the past year the TBS Crossfire has become more popular. With their recent release of the TBS Crossfire Nano however, a new wave of people are starting to use crossfire, and many questions are being asked. With that said, the TBS Crossfire Nano is just as easy to hook up as the original Crossfire micro. 

Prerequesit: This was written using Raceflight 426, Crossfire Nano, Full Crossfire TX and a Windows computer.

First start by wiring up the Crossfire Nano according to this Pin-out Diagram.

Don’t forget to solder the pads on flight controller as seen in the picture below.

Revolt Unify Nano Pinout Diagram

Once wired up, update your Crossfire transmitter to 2.24 or later in the TBS Agent.

Once the TX is updated, power on the Quad/FC and bind the Crossfire Nano. (NOTE, TBS recommends that the Nano is powered off a 5 volt regulator from a Lipo and not from USB power)

You will be prompted to update. Start the update and follow the prompts. If you have any issues with this step, please contact TBS for troubleshooting.

Once the Nano is bound and you have a solid green light on both the TX and RX. Now, navigate to the output map on the Crossfire TX. Example, if you have a Full crossfire you hold down the menu button for 3 seconds, then go to “RX Nano>Output Map.” 

Change the following:

Output 1 – CRSF TX

Output 2 – CRSF RX

Output 3 – (Not Used)

Output 4 – (SMARTAUD if Chanel 4 on the Crossfire nano is wired directly to a Smart Audio device)

Now you are ready to open Raceflight, plug in your quad and Navigate to “Setup.” Please verify that the Crossfire Nano is powered. If not, check your wiring that the crossfire is receiving 5 volts. If you have not setup your quad before, run each step until you are finished. If you are just switching to the Crossfire Nano, run step 2 and step 3.

If you are having problems with Auto detect navigate to the “Configuration” tab and change the radio settings to the following below and then run step three in the setup:

Receiver protocol – CRSF TX Pin

Receiver Port – UART 1

That’s it, you’re done!  Now go out and fly!  If you have any questions feel free to join our slack or Facebook page.


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