About

Gender

Male


Location

Warrenton, VA


About Me:

Newbie Drone / Quad Enthusiast


Please tell us a bit about your UAV interest

FPV Racing and trying to get into automated flight.


Hometown:

Warrenton


Activity Feed

Jeff Lunglhofer replied to Vasilis Samaritakis's discussion Apm 2.6 crash - Can't find out why
"On the mode change question the logs are pretty unambiguous.  You made 5 mode changes, or at least your board and receiver were pretty convinced you did.  That said, I don't think that made any difference - but the mode changes are expected given…"
Feb 23, 2016
Jeff Lunglhofer replied to Vasilis Samaritakis's discussion Apm 2.6 crash - Can't find out why
"Sorry didn't see the previous reply before I posted. +1 on the "you lost a motor" theory.  I believe that's almost certainly what happened here."
Feb 23, 2016
Jeff Lunglhofer replied to Vasilis Samaritakis's discussion Apm 2.6 crash - Can't find out why
"Are you sure that you have you checked all of your motors and ESCs?  You aren't logging RCOUT data which would show the PWM going to each motor which would be very helpful - but based upon your log the quad succeeded in maintaining Yaw control but…"
Feb 23, 2016
Jeff Lunglhofer replied to Jeff Lunglhofer's discussion Inexplicable Altitude Drops in Alt_Holt and Loiter Mode
"PROBLEM SOLVED - The issue has nothing to do with my settings and everything to with APM which is behaving extremely erratically for me on my Macbook.  APM is arbitrarily changing settings when I use the sub-menus such as "Basic Tuning" "Extended…"
Feb 21, 2016
Jeff Lunglhofer replied to Jeff Lunglhofer's discussion Inexplicable Altitude Drops in Alt_Holt and Loiter Mode
"I've tried now with various settings to get the IMU values to graph properly and simply put, they do not.  I can sometimes get AccX to graph, but the others simply show: ERR status when I mouse over the graph to pull values.  Maybe I've got an issue…"
Feb 21, 2016
Jeff Lunglhofer replied to Jeff Lunglhofer's discussion Inexplicable Altitude Drops in Alt_Holt and Loiter Mode
"Okay, I turned on the "nearly everything" LOG_BITMASK.  Attached is an updated log that beautifully illustrates the problem.  Note that in this case the quad is climbing steadily in response to the DAlt going up vs. down.  But again the quad seems…"
Feb 21, 2016
Jeff Lunglhofer replied to Jeff Lunglhofer's discussion Inexplicable Altitude Drops in Alt_Holt and Loiter Mode
"Funny you should ask, that's on my agenda for tomorrow. The APM is currently on top of a plate with rubber "earplug" feet. So it's fairly isolated from the main quad body. I plan to enable vibration logging tomorrow and review that output. I could…"
Feb 20, 2016
Jeff Lunglhofer posted a discussion
Hi Folks, I'm really struggling with an altitude problem on my quad. I've tried every tweak Google and other postings could bring up.  The problems is this:1) In Alt_Hold or Loiter mode the quad will gradually rise, or more often than not it will…
Feb 20, 2016