I have started to add functions to MinimOsd code.

At first i did it for myself only. Added many functions i thought i need. Then opened this thread.

after a while, Pedro and later Miguel came, and things started to happen fast. :D

They have optimised the code and added even more things to it.

They have worked hard on CT, and it became a great tool!

Thank you Bough! :)

By now MinimOSD-Extra got a pretty advanced OSD.

Here it is in action:


- Changeable unit measurement (US, metric)

- Airspeed

- Home alt

- Battery Percent

- Battery used mah

- Current Draw

- Time From Startup (cleared at takeoff to show exact flight time)

- OSD Menu

- Variometer

- Wind horizontal speed and direction, and also the average wind speed of the last few minutes. 

- OSD on/off

- Switchable secound screen

- WP distance

- WP heading

- Crosstrack error

- Warning messages for Lost GPS fix, Stall, Overspeed, battery volt, battery Percent, RSSI

- Efficiency, glide distance & thermic notifier. 3 in one panel

- OSD Brightness

- HAM Call Sign

- After flight summary

- Trip distance

- Temperature

- Smoothened horizon

- Real heading


- Vertical speed

This functions can be turned on and off, and placed on different screens now, by the Config. tool.

Also RSSI, switching mode and channel and unit measurement, Stall speed warning, Overspeed warning, Battery warning volt, Battery percent warning, RSSI warning,  can be set in new Config Tool.

We built in a new way of setting video standards. Now OSD does not guessing anymore :). You can set it fixed from CT. It is in "Video Mode" menu.

Here is how it looks: (This video is a bit outdated, sorry. I will make a new one soon.)

The MinimOSD-Extra project is here: Link

This project is the developing version of the official Arducam OSD located here: Link

The latest stable version is: 2.2

The latest version can be downloaded from here: MinimOSD-Extra R800

Username: MinimOSD_Extra

Password: Top_Secret

CT is included. (The FW for Plane, Copter, Character upload and the character file is in the "FW & Char" directory inside CT directory)

We are sharing it to see videos you make using it! :)


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I have not seen that problem Paul. I use FatShark Dominator goggles and have not see that problem but then again I am not running the R800 firmware or character set. Maybe some else has heard it. What goggles are you using, btw?

I am using Boscam GS 920 AIO goggles, but imho I don't think that is the issue.

The goggles only reproduce what they get delivered, or am I wrong?

I hope someone can help me, because I like the small characters in the R800 version ;-)

I download last F/W and now I have to press the reset every time I start the pixhawk

Any advice



connect only Tx to the OSD

This is what i did

Did you change cameras by chance? I only see this issue on some cameras.

 iskess thanks for your reply,at the moment the OSD connected direct to the monitor w/o the camera.  but now I tried to upload the firmware 24R719 with CT Tool but it stuck in 94%



The "stuck problem" solved by replacing the FTDI and upload the minimosd extra_800. the "reset problem" solved by change parameter BRD_SER2_RTSCTS=0 

A friend and I have been struggling setting up an RCTimer OSD with minimosd-extra and a fatshark TX. We were getting a lot of bleeding of the characters to the point of it not really being usable due to the obstruction of the video feed. However today we solved it. It took changing the source code to do it. We had to disable the automatic OSD black level control (register 6C) and then it was perfect. It might be useful to add an option to the config program to be able to enable and disable the automatic black level control. 

Is it possible to have another channel than the 8 selected for the RSSI?

I have to select between the Pan or Tilt or RSSI ...

My setup is:

PixHawk items wiring:

RCIN - connected to channel 1 on ezUHF

SBUS - connected to channel 8 on ezUHF

8 - BEC - HobbyKing BEC, to be replaced by SEPIC?

7 - Flap 2 servo

6 - Flap 1 servo

5 - Aileron 2 servo

4 - Rudder servo

3 - Throttle ESC with only signal and ground connected ( red wire removed)

2 - Elevator servo

1 - Aileron 1 servo

Aux 1 - Tilt servo

Aux 2 - Pan servo



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