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Here is how it looks: (This video is a bit outdated, sorry.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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For anyone looking for a firmware that utilizes the new micro board aux pins, (such as PWM RSSI!) then check out this branch.


Also looking for this option.

can someone compile this to run at baud 19200 or tell me where i can fine the source code for MinimOSD_Extra_R800 plane

Hi, I have recently updated my MinimOSD (3DR version 1.1) to the latest OSDExtra firmware from github, and started to install it on my Pixhawk (AC3.3.3).

I have the solder jumpers on the board bridged so I can power my camera/video tx seperately.

At first I wasnt getting any data through at all, nor was I able to switch screens (3 pos switch), then I changed some settings in MP in the full tree:





SR2_PARAMS=0 (Didn't Change)


SR2_RAW_CTRL=2 (Didn't Change)




And confirmed that:



Now I can see some data updating on the screen, but can not switch the screen.

On boot, and with the switch in POS1, the OSD starts off blank, then as I toggle through the switch positions, every position stays as screen 1. It doesn't look like it's changing or switching after that, my 2 OSD screens are very different so I can tell if they were changing.

So I confirm that my Channel 7 3-way switch is working correctly by checking in MP:




Still no luck.

Does anybody have any further info for me to get the screen switching to work?


Have you calibrated that channel?

Open MP so you also can read the current valuses.



Gábor!! It's so good to see you here. I hope all is well with you and your family. I miss the great discussions we used to have on this thread. You put in so much free personal time into this project, and I appreciate you every time I fly.
It doesn't look like anyone has risen to fill your spot after you left. The Github site is dead.


Yes. At first I had channel 7 as:


which matches what the wiki says

screen 1: 0 to 1233 screen 2: 1233 to 1467 screen off: 1467 to 1701 (or abowe. the abowe range can be used for additional things)

But then going in to https://github.com/diydrones/MinimOSD-Extra/blob/master/MinimOsd-Ex...

I found this:

if channel < 1200, then panel 0
if channel >= 1200 & <= 1800, then panel 1
if channel > 1800, then panel off

(One of them needs to be revised)

So I have now changed the channel 7 to be 984, 1501 , 2016, but still not able to change panels.

I've attached my OSD parameter file


Glad to hear Gabor.Every time I fly, I remember who created this software.And so for several years.Thanks.

I'm having the same issue with the extra pitch attitude character in the exact same spot, always showing zero. I only have one MinimOSD that does this. It's one of those micro minimosd's. I have tried wiping everything off the screen and adding it back, but it persists. Very strange. @Janne, did you ever find a solution?

I tried changing to switching to ch8, still no change.

Is there anybody that has panel switching working on AC3.3.3?


Are you sure the channel data is configured? So it is present on the port for the OSD?

Also the code itself can be changed easy to have the channel value displayed for debuging!

Best regards,


Hello Iskess,

Yes it was a long time since! :)

I cannot promise these days. I am very occupied.

Also have a 7 month old daughter! She is my hobby now! ;)

However i was able to build a plane but haven't fly it yet. Just showed the R/C airport to it once so they can be friends, but that was all my activity on flying since almost 2 years now. :(

But in case you are facing some unresolvable issue, contact me!

If i am able to i will help.

Best regards,


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