Posted by Andrew Price on December 13, 2015 at 12:14pm
Setup:Iris+, minimosd v1.1(3dr), pixhawk, gopro 3+ silver, tarot 2d gimbal1. 3dr telem radio and mini osd plugged into Telem1 via y-cable splice.2. Frysky 4dII telemetry on Telem23. Pixhawk to minimosd connection using Ground, 5V, and RX only. TX not connected.4. Minimosd connection to Vtx using separate 3S lipo connected to 12V analog side.5. Gopro 3 connected to Minimosd only with signal and ground.Symptoms:1. I can get Telem on the osd when connected to Mission planner (not a problem for me)2. I can get video on the monitor when plugged in and go pro turned on, but no osd overlay.3. If I turn off gopro, osd overlay comes back on without issue.4. I've tried minimosd -extra various firmware with no success in getting telem overlay when camera is on.5. I've changed video settings on gopro to 1080/60fps, 1080/30fps, 720/60fps, 720/30fps, 480/all fpv options with no success of video and odd telem overlay.I've read the max7456 chip may have a max resolution for it to function which is why I tried changing resolution settings on the gopro.I'm searching for a solution to use my gopro and get telem overlay from minimosd. Anyone come across this issue, solutions, anything? Scoured many forums and discussions and haven't found a solution.
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I've potentially found an issue with wiring where I had 12V (in) plugged into the OSD (out) side and back out the (in) side. In process of re-working the wiring to make sure it wasn't pushing voltage backwards through the minimosd causing the Telem overlay on the video feed to be 'overpowered'. Not sure if having power going from (out) to (in) is the cause of dropping the overlay when the camera is turned on.
If the re-wiring doesn't resolve it I'll try doing PAL-PAL. Currently the OSD and gopro are set and double confirmed to both be on NTSC.
Will report back on findings.
Andrew Price > Andrew PriceDecember 14, 2015 at 8:55pm
Resolved. 12V going in the (out) and out the (in) resolved video feed. I have full 1080p resolution and full telemetry. Simple but dumb wiring error on my end.
Replies
I've potentially found an issue with wiring where I had 12V (in) plugged into the OSD (out) side and back out the (in) side. In process of re-working the wiring to make sure it wasn't pushing voltage backwards through the minimosd causing the Telem overlay on the video feed to be 'overpowered'. Not sure if having power going from (out) to (in) is the cause of dropping the overlay when the camera is turned on.
If the re-wiring doesn't resolve it I'll try doing PAL-PAL. Currently the OSD and gopro are set and double confirmed to both be on NTSC.
Will report back on findings.
Resolved. 12V going in the (out) and out the (in) resolved video feed. I have full 1080p resolution and full telemetry. Simple but dumb wiring error on my end.