Smart Audio Setup With Hobbywing X-Rotor FC & TBS Unify HV
If you’re wondering how to set up smart audio with a Unify HV and the Hobbywing Stack (minus the VTX) then you’re in the right place. I run the Hobbywing Stack and use a unify instead of the VTX that comes with the stack. It’s not that I don’t like the VTX that comes with the Hobbywing Stack, I’m just a creature of habit and I’ve always used the TBS Unify HV as my VTX.
The Soldering Process
Setting up smart audio on this setup is super easy, just split your video wire (the one that goes from your VTX to your Camera) so that you have the video from the camera going to the video in solder pad and the wire from the VTX going to video out solder pad. Then run the audio wire from the Unify to the FC pad that is labeled T6 or TX6. I use a Kraken so I chose to use a 3 pin harness connector to run my video in, video out and Smart Audio cable so I can disconnect my entire pod with my VTX and camera attached. This allows me to open up my quad and work on things with plenty of room. See the screenshots below to follow along with the instructions.
The GUI Changes
After soldering your wires to the appropriate pads, go ahead and plug your FC in via USB and open up Betaflight. You’ll need to do a few things to get your Smart Audio feature to start working. First, click on Ports from the main menu in Betaflight after you’re connected. Then under the UART6 settings, find the drop down all the way to the right and select TBS Smart Audio as shown in the screenshot below. After you’re finished click on save and reboot.
The OSD Menu Process
Now that you’re ready to go, all you need to do is plug in your quad and you can use your remote to access your OSD menu. To pull up your OSD Menu, move your YAW to the center and then all the way left and hold. Then, move your Pitch/Roll stick to the top left corner of your remote. This should allow you to open up your OSD menu and from there you can open up the features options to manage your VTX channels, band and MW settings.
First, select “Features” from the OSD menu, then on VTX SA. Then Select your desired channel, band and power setting then select the option that says “set” in order to execute the changes. Check out the screenshots below which helps illustrate the process.
Now that you know how to setup Smart Audio, you should be able to save time at the races when you join the final race and need to change your channel on the fly. Stay in the pit and change your VTX settings without even getting up, isn’t that awesome?! 🙂 Thanks for reading and please share!