DJI FPV Goggles Full Betaflight OSD Support (Overlay OSD in DVR)

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The lack of full Betaflight OSD support has been one of the biggest complaints of the DJI FPV goggles, but with the public beta release of the fpv.wtf MSP OSD project, this is going to change. DJI FPV Goggles can now use all the elements in Betaflight OSD! I will show you how to do it in this post.

Apart from full support of OSD elements, you can also use the OSD menu and get custom fonts. It’s very easy to setup. Not only Betaflight, basically any firmware that supports HDZero MSP DisplayPort will also work, such as iNav and Ardupilot.

Root, Install WTFOS and Package

Follow this tutorial to root and install WTFOS on your DJI FPV Goggles as well as Air Unit / Vista.

Once that’s done, go to packages (https://fpv.wtf/packages) and install msp-osd on your goggles and Vista. This will give us full Betaflight OSD support.

Goggle Settings

In your Goggles, you should disable Settings => Display => Custom OSD, otherwise you will get some duplicated OSD elements.

Betaflight Configuration

Go to the “Ports” tab, under “Peripherals”, select “VTX (MSP + Displayport)” for the UART to which the VTX is connected. The MSP option should automatically be selected, if not please enable MSP for that UART as well.

Then apply the preset (just search for “OSD for Fpv.wtf, DJI O3, Avatar HD”). Once applied you can then skip ahead to configuring in the OSD tab.

The preset is the same as entering this command lines in CLI.

set osd_displayport_device = MSP
set vcd_video_system = HD
save

In OSD tab, select HD in video format.

Then enable and place your preferred OSD elements, just like analogue.

You can check in the goggles while adjusting the position of the OSD elements, it should update in real time. Try to put the elements around the center of the screen so they don’t go beyond what can be displayed in the goggles.

This is how I setup my OSD, you can just copy and paste them in CLI if you wanna try mine.

set osd_vbat_pos = 2499 
set osd_link_quality_pos = 2237 
set osd_rssi_dbm_pos = 2229 
set osd_tim_2_pos = 2563 
set osd_flymode_pos = 3596 
set osd_throttle_pos = 3532 
set osd_current_pos = 3563 
set osd_mah_drawn_pos = 2531 
set osd_craft_name_pos = 2083 
set osd_pilot_name_pos = 2115 
set osd_warnings_pos = 14677 
set osd_avg_cell_voltage_pos = 2520 
save

It looks something like this:

Custom Font

The default font looks too “blocky” and low resolution for the HD screen, I highly recommend using a different font. Here’s how to upload a new font.

There are four .bin files to every font, simply put those files in the root directory of the SD card and insert it to the goggles, that’s it. You don’t need to do anything to the Vista.

You can download other fonts here: https://github.com/bri3d/msp-osd#choose-a-font

• For simple white font, this is a great one: https://github.com/Knifa/material-osd/releases/latest/
• If you like HD color fonts, there are a couple of options:
  • https://sites.google.com/view/sneaky-fpv/home
  • https://github.com/vicewize/vicewizeosdfontset

Here are some preview of the fonts:

Knifa Material

Sneaky Color Font (Conthrax)

Sneaky Color Font (Blinder)

Sneaky Color Font (Sphere)

Vicewize Italic Color Font

If the font you downloaded doesn’t have the same names as the screenshot above then you should rename them by replacing the name of the font to the word “font”, like this:

font_bf.bin
font_bf_2.bin
font_bf_hd.bin
font_bf_hd_2.bin

OSD Overlay in DVR

Unfortunately it’s not possible to have OSD burned into the recorded video straight out of the goggles due to hardware limitations, but we can overlay the OSD in the DVR manually in post thanks to the work by FPV WTF team! Actually it might be better as we have the option to keep the clean feed or have DVR overlayed. This is still an experimental feature therefore setting it up is still a bit cumbersome, but I will show you how here.

Make sure your goggles and Vista have been rooted and have WTFOS installed. Install MSP-OSD packages on both Vista and Goggles.

Power on your goggles, and connect USB cable to your computer.

Go to the CLI on fpv.wtf: https://fpv.wtf/cli

Enter the following command lines and hit enter (copy line by line, right click mouse to paste if keyboard shortcut doesn’t work), this will enable OSD recording.

package-config set msp-osd rec_enabled true
package-config apply msp-osd

After that, power cycle your goggles and quad. Now go out and fly! It should generate a .osd file along with the DVR video file and srt file.

To overlay the OSD in your DVR, use this web browser tool: https://knifa-develop.fpv.wtf/osd-overlay

Select the video file (your DVR footage), the osd file and the font files you want to use in the overlay (remember there are 4 files for each font, so upload all of those font files).

Click Start, and save your video with OSD somewhere. That’s it.

If you update WTFOS to 0.91 or newer on your Goggles, they’ve added “rec_pb_enabled” configuration option. By enabling this option, the OSD overlay will be added when you play back DVR inside the goggles. This might be useful for checking GPS coordinates after you crash for example.

To enable it, go to CLI on fpv.wtf: https://fpv.wtf/cli, and type the following (line by line, hit enter, then the next line)

package-config set msp-osd rec_pb_enabled true
package-config apply msp-osd

Improved OSD Canvas in Betaflight 4.4

The new OSD canvas in Betaflight 4.4 utilizes the whole 16:9 screen area, there’s more space available to place your OSD elements. It makes the font and screen much appropriately sized for HD FPV videos.

To enable it, simply select HD in Video Format in the OSD tab.

Make sure to update both of your FPV goggles and Vista to the latest WTFOS version in order to get the correct display grid size. Also you need to enable compressed transmission to get the grid size to work reliably, otherwise you’d have to rely on certain bootup order to get it work, i.e. power up the quad first then the goggles. Hopefully this will be fixed in future version of WTFOS.

Edit History

• Sep 2022 – tutorial created
• Nov 2022 – added instructions on how to change font
• Jan 2023 – added instructions on how to overlay OSD in DVR, added links to HD color fonts
• Feb 2023 – updated instructions for BF4.4 (OSD canvas improvement)