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Here is how it looks: (This video is a bit outdated, sorry.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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  • Hi Gabor,

    I installed your 1.25 revision in to my OSD this evening. It's raining outside so I can't go out and get a GPS lock, but so far I can report that everything seems to be working.

    My only critical observation is that the bottom rows of the OSD don't appear on my screen. I set the config program to NTSC, but it looks like it's still showing in PAL mode. I squashed everything in to the top 2 3rds of the rows and it all appears ok. The home arrow and distance doesn't show up but I assume that's because I don't have a GPS lock.

    The toggling of the OSD seems to work, it switches back on again straight away because of the warnings but that just means the warnings are working correctly too.

    Advice would be appreciated re the NTSC rows not displaying correctly. The only other clue I have here is that I put airspeed in the middle of the left hand side with ground speed on the row below it. On the FPV screen it looks like there's two or three rows between air and ground speeds. Let me know if you want a screen shot.

    Thanks for all your great work,


  • Developer

    Hello everyone,

    I have posted a new enhancement request in the arduplane repository/wiki. It is about include native support from Arduplane code for RSSI and secondary battery voltage readings:


    I hope that they take account of this request. I see we are many in the community those would like to see the RSSI and the voltage of a second battery.


    Regards from Spain,


  • I have made a new function.

    It is OSD on/off

    At the moment it works this way;

    If you switch between stabilized, and manual mode faster than 1,5s but slower than 1s than it will turn off/on.

    It is not the best solution of this function, but i did not have better idea. Not yet.

    Also i think that my code on this function is a bit too circumstantial.

    So, if you know a better way, please write it down! ;)

    If warnings function is on, and any warning is present than it will turn osd on automatically, and osd can't be turned off, till warning is off.

  • Using Arduino IDE 1.0.1 I am still getting compile errors.  Says conflicting return type associated with uint8_t. Any ideas?

    There are 2 source codes in your zip file. Is the OSD the original and the beta your changes?

  • Any way to add the current value. mavlink now sends it out to the mission planner and I display it my Minimosd using the value


    I have hard coded a lot of things I use but like what you have done with the config tool.

    Other things that you might think about adding is

    a. way to change from meter to feet, m/s to mph

    b. a way to display a message. (some of us need to display a call sign)




  • Big Thx, it work.

    But ist also no real solution, becouse i also cant upload chars wirh this firmware.

  • I have an idea on turning OSD on and off in flight without the use of extra channels.

    I might do that next.

  • Found a bug in warnings part.

    So here is the version before.

This reply was deleted.


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