Adding extra functions to MinimOSD

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Here is how it looks: (This video is a bit outdated, sorry.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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      • Gladly  Miguel antd thank you again!!!!

  • Hi guys,

    First of all, THANK YOU for keep adding extra functionality to the ArduCAM FW.

    I got my minimOSD board last week (new guy to FPV!) and in a search for "the best FW" for the board I came across the minimosd-extra.

    I truly appreciate all the work everyone has done on it although I have a small number of constructive critics (please take them as ideas that could help make things even better).

    First, why SVN? Git is much better! It's like choosing between a rock and an hammer to hit nails.

    Then the SVN organization: a bit messy! There are 4 different "base releases" (?) and then 3 "alternative" ones. The features of each one are not clear (at least for me) except the obvious ones (...copter...beta) and (...plane...beta).

    The Tools folder is also a little unorganized with the CT Tool scattered in at least 2 or 3 different places.

    Also, I don't think that it was a good idea to split plane/copter in two different folders with 90% of the same code... in my opinion it could be better handled with a simple #define statement and enclose plane/copter dependent code in #ifdef's.

    In summary: It works, its cool and I hope I can contribute to improve the great job already done!

    Anyway... my hobby during this last weekend was to get your latest SVN and work on my "alternate" minimOSD firmware. I got things a little cleanup (to my taste) and I plan to keep improving it (already done some of the stuff I suggested above). Feel free to get any of the ideas or code I modified (its GPL3 anyway...).

    I placed "my" minimOSD at:

    For other people willing to contribute to it, pull requests are welcome!

    Again, thanks for all the hard work done so far and I hope to see it getting better!

    • :D

      One weekend?

      it took us like 2 years.... :D

      It is nice to have a professional coder here!



    • Hi Luis,

      Welcome to minimosd extra.

      Thank you for your feedback!

      You may not believe but I've already came across same thoughts as you.

      Main reason for not implemented those yet: Achieving a stable version

      Our efforts are focused having a stable release and if you're "new to FPV" let me tell you that we reached that state in a couple of months or so :)

      MinimOSD code started in and I think that's the main reason is still there. I guess Gabor could tell you the details better because I wasn't here in the project beginning.

      #ifdef it's a very nice feature to have implemented for sure. We're in a good place in time to include that even more because now Arduplane and Arducopter mavlink messages are much more compliant. There were times for example when copter and plane mavlink temperature were reported in different decimal places...

      I wonder if #ifdef would or not lead us to larger code space after compile... We have to test it. I think that if you would like to help in this that would be great. I'll talk with Gabor about it ;)

      4 main "base releases":



      MinimOSD_Extra (it's plane! Historically no name needed :) )


      CT Tool is in one only place: here

      My main goals in the near future are:

      A cross platform CT Tool (for example, chrome app) so CT Tool would work in Android tablets for example (studying it).

      Custom fw build depending on selected features so we can fit more features on these osd (already tested but we need a tougher solution).

      A separate font uploader so we could free some more space in the fw (working on it).


      • Guys i am new to this thread. How i can download the Source from

        • Hi Zubair,

          You may use any svn client. I use tortoisesvn.


          • After downloading and installing SlikSvn what should i do now? :(

            I went to cmd and type that command svn checkout

            But it doesn't do anything. Look like its stuck.

            • Hi Zubair,

              It should be something like,

              svn checkout <your destination folder>

              Then you should copy the librariesOK folder content to your local "ArduPilot-Arduino-1.0.3" libraries folder so you're able to compile.


              • I know how to compile it. But downloading is kind of tricky. I am not getting any response after this command.

                Then after force stopping it says unable to connect to repository at URL ......

                • Hi Zubair,

                  With tortoiseSVN here are the steps I follow to make a local copy:

                  1 - Open windows explorer.

                  2 - Create a folder where I want to download a copy of the source.

                  3 - Right click on that folder and choose "SVN Checkout..."

                  4 - Enter the url

                  5 - Hit ok button

                  I just created a local copy of the source following this steps and it all went ok.

                  Hope this helps.


This reply was deleted.


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