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Here is how it looks: (This video is a bit outdated, sorry.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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Actually i have to disagree with you. If you are using MinimOSD Extra Copter (most of us do) you need to change SR0 and SR1 Parameters (https://code.google.com/p/minimosd-extra/wiki/APM). If you do that with the latest MP, those parameters keep resetting to default once you connect to MP or restart the APM. With an older MP (like the one i posted in the link) those parameters will be saved and won't reset to default.

I'm not very experienced OSD'er but that's what I did, a dedicated ubec to OSD, and only powering 5V side, it solved any stability issues I had.


There's missing GND connection:

- between APM and OSD,

- between OSD and VTx/camera.

On video side there're also mixed colours of power wires (usually GND is black and positive power is red).

Ops, you are right, standard wires colours were mixed, but connections are OK, there must be some kind of pass thru, cause I've only power 5v side with ubec and haven't solder or jump anything else, also I've connected video In and Out between Osd (Micro Hk OSD) and Vtx/camera (ET600) and nothing more. And between OSD and APM (MiIcro HKPilot) only telemetry, no GND cable among them, and I have a very stable overlay data.

Well, you misunderstood me what I am saying is that resetting SR params is the intended behaviour, not a bug. MP simply does what you (defaults) are requesting from it. Ifyou do kot like those you need to change connection setrings in the MP "Planner" tab or use a different telemetry port like 2, 3, 4 or 5 :) and adjust SR settings for those separately. Juat do not use any of those serial ports to connect to MP(in any way: usb or wifi or bluetooh) 

I would like to say thanks to you guys. MiniOSD is an excellent and cheap OSD system for APM and others. The additions you made are really valuable.


Agreed Hotwire, excellent device!

Hey, sorry if this question has been asked before, but i am very new to the miniosmd.

Thanks for the effort you all have put into this.

I have the following problem:

My camera (Xiaomi Yi) outputs the video at the AV out as 4:3 but with black bars at top and bottom.

See the picture here: 

Now my screen just supports stretching the video to 16:9. The Problem is, the image then looks like this:

So despite the video itself having the right aspect ratio, I can just use that small 4:3 image on my screen, if I want to have the video in the aspect ratio on my display.

The problem is, that the camera outputs the video in the wrong way.

So my question is: can the miniosmd "compress" the video like in this image? (photoshopped):

because if the video was transmitted like this, i could set my screen to 16:9 and have the fullscreen video on it!

the technique is called anamorphic widescreen and is used with dvd video!


thank you very much in advance!

So my question is: can the miniosmd "compress" the video like in this image?

Here comes the long answer: NO

MinimOSD with APM, website changed to:



The link above by AlbEagle was blocked by Mcaffe. Proceed with caution. It nay be a glitch, but, better to be carfull

Looked OK to me...nothing dodgy there that I could tell :)

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