Hey friends. I’ve connected the board according to this image
and I can see the picture when the Telem2 is not connected, but once I connect it the image is disappeared.
Is it a board’s fault and I simply need to try another similar board, or there might be some settings on the Pixhawk 6C Pro side?
What image you can see where?
Double check your wiring and pinouts of your FC and OSD module. I think your GND wire is not correct on minimOSD Module.
EDIT: when you say “image” do you mean the entire video feed, or just the OSD overlay?
Check the Optional Setup in the ardupilot doco - there’s jumpers to use the flight controllers +5v and in that case you DO NOT connect an external 12v (or battery) on the video side.
Set the protocol to Mavlink 1
and the SR2 parameters (for SERAIL2/TELEM2) something like:
SR2_EXT_STAT, 2 //2hz for waypoints, GPS raw, fence data, current waypoint, etc
SR2_EXTRA1, 5 //5hz for attitude and simulation state
SR2_EXTRA2, 2 //2hz for VFR_Hud data
SR2_EXTRA3, 3 //3hz for AHRS, Hardware Status, Wind
SR2_POSITION, 2 //2hz for location data
SR2_RAW_SENS, 2 //2hz for raw imu sensor data
SR2_RC_CHAN, 5 //5hz for radio input or radio output data
I see the image from the camera on my receiver screen, but it’s always without OSD.
I tried different combinations of wiring: 12v on the video in/out side without 5v on the pins which connect to the FC and vice versa. I can either see the bare image from the camera without OSD or nothing.
Again, on your picture shown above GND is connected to a wrong pin. If your real connection is like the picture than this might be one problem
I also tried to connect it to another GND pin (the second one from the bottom), but it didn’t help
Which module you have really as there are some different (clone) modules are existing on the market? Showing just pictures from the wiki are not so helpful as showing your real world to understand what you have
I think with this module you have also the possibility to display some direct data without connection to the FC if you apply these signals to the 8 pads. For example if you connect a fixed voltage to VOLT2 and corresponding GND and FC disconnected, this voltage has to comeup on the screen.
If not you have a problem with the modul itself.
Either with the Firmware of the board, or the configuration of the firmware, or the hardware itself.
It’s probably an issue with the board itself because I couldn’t configure it or update the firmware. I’ve ordered another, similar board to try.
Hello again friends.
I’ve bought another osd board, this time it was micro minimosd. I couldn’t flash it too, so I decided to buy a specific kind of board for flashing that has DTR pin and it worked out this time, I could flash and configure the OSD. I also tried doing it with the normal size minimosd board and it worked out as well, but I still have problems making it work with the autopilot.
I’m still having the same issue - if it has 12v on one side - the red lights on both side of the board are on and I see video from the camera but without any OSD, and when I connect the UART to the autopilot I see no red lights on the minimosd board and no video from the camera.
They usually have jumpers to configure which voltage source powers which part of the OSD board.
Those analog days were such fun 
Okay guys, it turned out to be quite a funny issue: I was confused the order of the Pixhawk’s Telem2 port, so + and - were reversed, after I fixed that both parts of the Minimosd board were lit and I could see the picture from the camera with Telem2 being connected, but I didn’t see any OSD or “Booting…” text from Minimosd.
Could someone help me debugging it?
Is it the problem on the Ardupilot’s autopilot part? Should I still see at least some text even if the autopilot’s part not configured correctly, or the issue is on the firmware side? (I flashed it with minimosd firmware (not micro minimosd) for Ardupilot and for Multicopter and then could connect to the board to configure the actual osd text)
Ok nvm. I beleive I just fried somethig on the first board because the second I got (micro minimosd) works fine except of the character set which is a bit wrong. I’ve already wired it to the autopilot and could see battery stats and flight mode info.
upd: uploading fonts I found as part of the configurator fixed everything
