Betaflight 4.1, not working SmartAudio and Tramp VTX and VTX tables

Smart Audio and Tramp VTX control are no longer working out of the box in Betaflight 4.1 right after flashing. The reason is that in Betaflight 4.1 you have to configure something that is called VTX Tables. Why you have to do it? Long story, the bottom line is that you have to do it.

How to fix SmartAudio and Tramp VTX in Betaflight?

Just copy-paste one of those snippets in the CLI, and save. There is really no reason to think about it for too long…

IRC Tramp compatible VTXes

vtxtable bands 5
vtxtable channels 8
vtxtable band 1 BOSCAM_A A CUSTOM 5865 5845 5825 5805 5785 5765 5745 5725
vtxtable band 2 BOSCAM_B B CUSTOM 5733 5752 5771 5790 5809 5828 5847 5866
vtxtable band 3 BOSCAM_E E CUSTOM 5705 5685 5665 5645 5885 5905 5925 5945
vtxtable band 4 FATSHARK F CUSTOM 5740 5760 5780 5800 5820 5840 5860 5880
vtxtable band 5 RACEBAND R CUSTOM 5658 5695 5732 5769 5806 5843 5880 5917
vtxtable powerlevels 5
vtxtable powervalues 25 100 200 400 600
vtxtable powerlabels 25 100 200 400 600

SmartAudio 1.0 compatible devices

vtxtable bands 5
vtxtable channels 8
vtxtable band 1 BOSCAM_A A FACTORY 5865 5845 5825 5805 5785 5765 5745 5725
vtxtable band 2 BOSCAM_B B FACTORY 5733 5752 5771 5790 5809 5828 5847 5866
vtxtable band 3 BOSCAM_E E FACTORY 5705 5685 5665 5645 5885 5905 5925 5945
vtxtable band 4 FATSHARK F FACTORY 5740 5760 5780 5800 5820 5840 5860 5880
vtxtable band 5 RACEBAND R FACTORY 5658 5695 5732 5769 5806 5843 5880 5917
vtxtable powerlevels 4
vtxtable powervalues 7 16 25 40
vtxtable powerlabels 25 200 500 800

SmartAudio 2.0 compatible devices

vtxtable bands 5
vtxtable channels 8
vtxtable band 1 BOSCAM_A A FACTORY 5865 5845 5825 5805 5785 5765 5745 5725
vtxtable band 2 BOSCAM_B B FACTORY 5733 5752 5771 5790 5809 5828 5847 5866
vtxtable band 3 BOSCAM_E E FACTORY 5705 5685 5665 5645 5885 5905 5925 5945
vtxtable band 4 FATSHARK F FACTORY 5740 5760 5780 5800 5820 5840 5860 5880
vtxtable band 5 RACEBAND R FACTORY 5658 5695 5732 5769 5806 5843 5880 5917
vtxtable powerlevels 4
vtxtable powervalues 0 1 2 3
vtxtable powerlabels 25 200 500 800

SmartAudio 2.1 compatible devices

vtxtable bands 5
vtxtable channels 8
vtxtable band 1 BOSCAM_A A FACTORY 5865 5845 5825 5805 5785 5765 5745 5725
vtxtable band 2 BOSCAM_B B FACTORY 5733 5752 5771 5790 5809 5828 5847 5866
vtxtable band 3 BOSCAM_E E FACTORY 5705 5685 5665 5645 5885 5905 5925 5945
vtxtable band 4 FATSHARK F FACTORY 5740 5760 5780 5800 5820 5840 5860 5880
vtxtable band 5 RACEBAND R FACTORY 5658 5695 5732 5769 5806 5843 5880 5917
vtxtable powerlevels 4
vtxtable powervalues 14 20 26 30
vtxtable powerlabels 25 100 400 1W

The snippets were taken from ttps://github.com/betaflight/betaflight/blob/master/docs/VTX.md#complete-examples

Idle Up vs Airmode – which one is better? Betaflight, KISS and all the other

Which is better: Idle Up or Airmode? Which one to use since the best pilots are stating that Idle Up is better than Airmode (Mr Steele). Different pilots state that Airmode is better than Idle Up. So, what is the truth? I’m not the best pilot in the world. Hey, I’m not even good enough to be considered very good, but I know my stuff and I can program. More than that, I know how the flight controller is working internally. And that gives me an edge…

Betaflight 4.0 – improved dynamic filtering on 7 inch quad

The next major release of Betaflight will be 4.0 with new and improved Dynamic Filtering. For now, today I only did a quick test of Betaflight 4.0 running on my TBS Source One 7-inch FPV drone. No tuning, no playing with settings. I only flashed, set modes and radio and that’s all. I pretty much like how it feels. This quadcopter was mainly doing cruising, no freestyle, and it felt good to put those props into more demanding use. Yes, Betaflight 4.0 has a good chance to be just awesome…

Hardware

A note about the sound. It indeed sounds like a V8 engine. Bear in mind, that those are default settings and Gemfan FLASH 7042 props are light and do not like to have too much D gain.

Get your Blackbox logs from SD Card with a USB cable – Betaflight MSC

SD cards are cool: cheap, reliable, a lot of space and you can remove them from the drone and read on a PC. But sometimes, it’s really hard to take them out. Either SD slot is in a strange place, or FC is oriented in a strange way or an FC designer has put an SD slot in a most stupid place of them all…

You can use Betaflight 3.4 as an SD card reader (MSC standard compatible) and either use it do get your blackbox logs via USB cable or use it, if you really want to, as a pendrive. With drag and drop and all that stuff. All you have to do is to go to CLI and type “msc” and hit enter. That’s all! It’s not perfect, but works!

What is Betaflight 3.5 Feedforward and how to use it

Betaflight 3.5 is just around a corner and it brings new cool things. There is no more Dterm setpoint weight and Dterm setpoint transition (relaxation ratio). They all were replaced by easier to understand Derivative and Feedforward (Feed Forward when you refer to the control theory tho).

Betaflight Derivative and Feedforward parameters are the new way of controlling "damping force" of the Dterm and responsiveness of a drone. The more Derivative gain you set, the more "damped", "delicate" and "swooshy" drone will be. The more Feedforward gain you apply, the more responsible to the sticks it will be. It's almost the same as with Dterm setpoint weight, but in my opinion, made simpler and can be set separately for each axis.