Hi all, hope somebody can shed a light on my problem.
I have been flying 2 quads and a Skywalker for 1,5 years and many hundreds of flights with APMs and never had a problem. This time though, I can't get my head around what is going on.
I have replaced a normal APM 2.6 with HobbyKing's HKPilot Mega Mini which thanks to its small form factor fits my XuGong-10 frame nicely. I use the standard Y-cable to split telemetry across my MinimOSD and the 3DR Radio air module. But it doesn't work when I connect both!
1) Only 3DR Radio connected
- Solid telemetry connection to both Mission Planner and DroidPlanner2. Link stats show no dropped packets
2) Only MinimOSD connected
- Solid OSD data streams, everything working normally
3) Both connected
- MinimOSD displays 'No mav data!'
- 3DR Radio has green solid light, no blinking red light (link ok, no data)
When I have both connected, the moment I unplug one, the other starts working right away. After migrating to the HKPilot Mega Mini I have never used the dual setup and therefore I am unsure if this is due to hardware or software differences.
I already thought it could be a brownout/power problem but adding a 5V UBEC for separate power doesn't fix it.
HKPilot Mega Mini (APM 2.5.2) running APM:Copter 3.1.5
MinimOSD running minimosd-extra 2.4-r726
3DR Radio 915 MHz module running SiK firmware 1.9