The MavLink_FrSkySPort project looks compelling, which converts Mavlink to FrSky telemetry using a Teensy. Would it be as simple as connecting this to P7 on your board and calling the executable with -C /dev/ttyO4 ? "
"Anyone know if the BBBMINI is compatible with any of the FrSky receiver telemetry outputs? I notice that some Pixhawk users use an RS232 to TTL converter to talk to the FrSky D and X receivers, and was wondering if BBBMINI could do the same. Am…"
"It looks like ShenZhen2U is now offering the BBBMINI PCB 1.5 plus headers and CAN transceiver for $9.90 (US) + $4.25 shipping. They also offer the option to include the sensors for and additional charge. http://www.shenzhen2u.com/BBBMINI.html
"I never did get much response on this thread (except for you Micha, thanks!). I'm guessing that is because EKF errors can be difficult to troubleshoot.I did finally find out what was wrong with my quad. I'm updating this thread so that anyone in…"
"Micha, thanks for reviewing the data and suggestion! I'm suspecting a compass issue here too. I'll run the compassmot test to see if interference could be a factor here. I don't have a current monitor, but it looks like there is a way to run the…"
"I'm going to bump this thread. I posted a week ago, still stuck and looking for answers! I'll bet there are a few folks out there with some familiarity with EKF who can tell me what might be going on. Note: I've had many hours of successful…"
"Incidentally, see plot below for GPS latitude. The trajectory below is fairly smooth, not much noise. The delta over the 2 minute time interval was 0.0004 deg, or about 7e-6 radians. This corresponds to about 44 meters over the two minutes, which…"
"Still looking for some tips on how to go about diagnosing the EKF errors. I'm suspecting a bad sensor, and am nervous about taking my quad out again before I have a good idea on what might be going on. Here is a screenshot of the EKF estimated…"
Hi All,Today's flight felt very unusual. No crashes, but I frequently felt my quad was behaving strangely. I checked the log file and note that over my 20 minute flight, it threw the error EKF_CHECK-2 (subsystem 16, error code 2, bad variance) 20…
"That's great to hear that the official release 3.3.2 supports BBBMINI. I'll probably stick with the current build I have since everything seems to be working well, and hold out for 3.4. At some point (when the right amount of new features have…"
"Had a nasty crash yesterday. Thanks Mirko for your help reviewing the dataflash log and fixing the problem! The copter flies perfectly now.
A big tip to BBBMINI users... Don't forget Step 28 on Mirko's software instructions:
Adjusting the BBB clock…"
You guys are awesome! I just had a textbook 19 minute flight with my Beaglebone Black. I reviewed the log file and unlike before, not a single missed dataflash log entry. MaxT was between 5-7 msec the entire flight (except…"