Lloyd DeForrest
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  • Sierra Madre, CA
  • United States
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Lloyd DeForrest's Discussions

Unable to reliably repeat missions

Started this discussion. Last reply by Lloyd DeForrest Dec 17, 2012. 5 Replies

Now that my loiter performance is rock solid using AC 2.8.1, I’ve moved onto flying missions.  So far, only about 40% of mission sorties are a success. My basic mission is 1) takeoff, 2) Delay, 3)…Continue

Tags: 2.8.1, Arducopter, planning, mission

Help- Compass deviates with increased motor current

Started this discussion. Last reply by Neil Flournoy Jan 26. 15 Replies

My compass decreases its reading as much as 90 degress with take-off motor power (high current).  It does this both on an APM 2.5 and an APM1 board.  I've moved the APM board to the secnd deck in the…Continue

Cannot use a MinimSD and a 3DR radio in 2.7.1 (worked under 2.5.5 - Mavlink .9)

Started this discussion. Last reply by Lloyd DeForrest Aug 19, 2012. 1 Reply

I'm running 2.7.1 (Mavlink 1.0) on an APM1.4.  Just turned on the MinimOSD with the 3DR (900mhz) radio at the same time.  The OSD comes up, but with no data (e.g. 0 degrees on the heading).  3DR…Continue

Flight Modes: Can I configure a "SImple FPV" mode?

Started this discussion. Last reply by Bradley J Carr May 24, 2012. 6 Replies

 Not being an accomplished RC pilot, I only fly in Simple mode.  My quad now has a camera.  Moving around in Simple mode and manually yaw'ing to point the camera is a pain. Is there a way that I can…Continue

 

Lloyd DeForrest's Page

Latest Activity

Lloyd DeForrest replied to Frank giglio's discussion External Magetometer
"Hi Jan, Well, I disconnected my external compass and got the same results you did.     First, in CLI, it reported "Not healthy" as expected. But like you observed, in the HUD, the HUD's compass still…"
Feb 18
Lloyd DeForrest replied to Frank giglio's discussion External Magetometer
"Jan, I do not understand what you mean by putting the APM board along two sides of a book.  If you point the APM board (input pins forward) toward North, do you see 0 (or thereabouts) on the CLI?  If you then point the APM west, do you see…"
Feb 17
Lloyd DeForrest replied to Frank giglio's discussion External Magetometer
"ummm.  I would NOT cut the trace deeper - who knows what damage you could do.  Especially if the ohmmeter shows lots more than 0 ohms.  Let me think about it and get back to you. Perhaps someone else has an Idea.…"
Feb 17
Lloyd DeForrest replied to Frank giglio's discussion External Magetometer
"Hi Jan, I know of three tests. First - take an ohmmeter reading between the two pads that you cut the trace between.  If you cut the trace, you will see an ohm reading of much more than 0 ohms - like…"
Feb 17
Lloyd DeForrest replied to Randy's discussion ArduCopter 2.9 / 2.9.1 released
"Hi All. I flew a 3 WP test mission today twice. The first time it performed flawlessly except for the last 6 feet of the landing were very fast. The second test run again performed flawlessly except for the last 6 feet, where it was like the motors…"
Feb 10
Neil Flournoy replied to Lloyd DeForrest's discussion Help- Compass deviates with increased motor current
" I had the battery wires in my Bixler going over the APM which probably caused most of the wondering flight paths (and almost crashes), which caused most of my grumbling about 3DR and their APM. I simply fastened the wires up to the top of…"
Jan 26
Lloyd DeForrest replied to Scott Berfield's discussion Trouble building ArduCopter code
"Scott, I had a similar issue Saturday while trying to compile the Ardurover code.    The latest Ardurover code requires the Arduino IDE in the downloads area becase the next generation of firmware (3.0+ I guess) includes…"
Jan 14
Lloyd DeForrest replied to Peter Kweon's discussion Store issue
"Peter -   I believe QTY 1 means one spacer or one bolt.  If you are buying 4 or 8, then its pretty easy to buy from 3DR.  If buying 100, I'd look elsewhere.   Also, this is really not the right forum to post…"
Jan 12
Lloyd DeForrest commented on Thomas J Coyle III's group ArduRover User Group
"Linus, Like everything new and undocumented, I'm a little confused.  I couldn't find in APM_Config.h the normal hardware board directive:  #define CONFIG_APM_HARDWARE APM_HARDWARE_APM2 And I couldn't find the…"
Jan 8
Lloyd DeForrest commented on Thomas J Coyle III's group ArduRover User Group
"Linus.  That worked  Thanks! I guess this new "HAL Board" handling is new?  Is that why we need a modified version of the IDE now? Thanks again. Lloyd  "
Jan 8
Lloyd DeForrest commented on Thomas J Coyle III's group ArduRover User Group
"Thomas, I have been unable to compile ArduRover v230 firmware.zip using the Arduino IDE 1.0.3.  ArduRover v220 firmware compiles just fine.   Is there a trick to compiling ths version? Thanks!"
Jan 7
Lloyd DeForrest replied to Randy's discussion ArduCopter 2.8 / 2.8.1 released
"I too have been having problems repeating missions that begin with the Takeoff command.  It sounds like I have results similar to those experienced by Mike Borland.  Could it be something with our configuration?…"
Jan 4
Lloyd DeForrest replied to Randy's discussion ArduCopter 2.8 / 2.8.1 released
"Mike - is the takeoff bug fixed in 2.9?  I can't find a reference to it in the change log.  Everything works oh so nice for me in 2.8.1 except for takeoff, which is hit and miss. "
Jan 2
Lloyd DeForrest replied to Greg's discussion Sonar Noise Reduction update
"Redemptioner, I had a lot of problems with my sonar - much like you.  In the end, the cause and fix were simple.   I have two suggestions.  First, if you haven;'t already, build a test jig. Something that…"
Jan 1
Lloyd DeForrest replied to Hugues's discussion Power for analog pins (servos for roll/tilt, sonar, etc)
"Hugues, I power the camera stabilization servos from a separate ESC - APM is pwered, like you, from the 3DR power module.  I also filter the +5v with a 50 uf and a .1 uf cap for good measure., but you probably don't need…"
Dec 27, 2012
Lloyd DeForrest replied to Randy's discussion ArduCopter 2.8 / 2.8.1 released
"Vincent - I tried that today.  flew in stab mode for 10 seconds, laned and then switched to auto.  Same behavior.  Just knda hovers around 3 feet above the deck.  Never did execute a successful takeoff command all day.  But…"
Dec 22, 2012

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Electrical Engineer working for NASA
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Building Autocopter

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