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Joe commented on Hugues's blog post PIXHAWK powering critical attention points - Wiki complementary information
"You say that "power port ground is NOT (connected to) the ground of the main output ports on the Pixhawk board"Also, above your diagram you state that there is "Ground isolation between power port and PWM ports on pixhawk"
However your…"
Jun 15, 2014
Joe replied to Randy's discussion AC3.1 & blown 3.3V regulator (was AC3.1-rc5 SPI speed problem)
" Bill Isenberger Do you have any evidence other than your story about what was found on your board by some unnamed person.Isn't that your second board ?
Didn't you also damage your  first board?Kendall at UAVOBJECTS assures me that he tested both…"
Mar 7, 2014
Joe replied to Randy's discussion AC3.1 & blown 3.3V regulator (was AC3.1-rc5 SPI speed problem)
"Here is my explanation as to the root causehttp://www.rcgroups.com/forums/showpost.php?p=27707120&postcoun...I proposed that fix a fair while ago http://www.rcgroups.com/forums/showpost.php?p=27214895&postcoun... and I was ridiculed."
Mar 6, 2014
Joe replied to Randy's discussion ArduCopter-3.1 released!
"I believe we can rule out vibrations
I am talking about a wobbly Loiter that holds position but pitches and rolls randomly not smooth straight and level as it should be and is with 3.1
With 3.1.1 If a gust of wind hits the hex or octa it pitches and…"
Feb 14, 2014
Joe replied to Randy's discussion ArduCopter-3.1 released!
"Thanks Randy, will do some further testing when it stops raining."
Feb 14, 2014
Joe replied to Randy's discussion ArduCopter-3.1 released!
"Hi Reuben, I did not have anything heavy attached to the F1000-M8 as I was initially trying 3 different motor sets with various prop combinations. In hindsight I am now aware that I had the same issue when using 3.1.1 in loiter on an RCT800 Hex, a…"
Feb 13, 2014
Joe replied to Randy's discussion ArduCopter-3.1 released!
"Hi Randy, thanks for all the work you and the other developers have put into AC.I spent the last few days battling a pendulum like effect on an F1000-M8 Octa in Loiter on APM 2.5.2 with AC 3.1.1, had real bad pendulum effect and  if hit by a gust of…"
Feb 13, 2014
Joe replied to Randy's discussion AC3.1 & blown 3.3V regulator (was AC3.1-rc5 SPI speed problem)
"I have a proposed fix for the APM2.5.x 3.3V regulator issues herehttp://www.rcgroups.com/forums/showthread.php?t=2053670&page=10...Texas Instruments is the only manufacturer, we are all in the same boat with this issue.
It has to do with the 5V…"
Jan 16, 2014
Joe replied to Randy's discussion ArduCopter-3.0.1 released!
"I was testing 3.1-rc4 auto tune on a HAL Quad to see what difference it made having the weight of a small Lumix FT1 camera or not .
with camera
without camera
Riding Auto tune on-board video from the Lumix camera, when auto tune is over I switch…"
Oct 15, 2013
Joe replied to Randy's discussion ArduCopter-3.0.1 released!
"I have successfully used Auto tune in ArduCopter 3.1-4c3 on a Quad and 2 Hexas, all work much better than I could ever tune them the old fashioned way, string tune and all that.A video tuning one of the Hexas


 
Congrats to the dev team on a job…"
Oct 13, 2013
Joe replied to Craig Elder's discussion APM Copter 2.9.1.b has been released
"Testing ArduCopter 3,1-rc2 Loiter in hot strong gusty winds with turbulence from surrounding tall trees, minimal PID tuning, good vibration isolation, compassmot and GPS antenna location, couldn't ask for more, liked it so much I did 2 flights over…"
Sep 26, 2013
Joe replied to Randy's discussion ArduCopter-3.0.1 released!
"Hi randy, I loaded ArduCopter 3.1-rc2 on my Talon Hex, it flew like mushy dog poo, then I swapped the cheap plastic props for some Rctimer CF 9 x 5 and WOW, 3.1-rc2 flies the Hex beautifully now, had no idea CF props could make that much…"
Sep 25, 2013
Joe replied to Randy's discussion ArduCopter-3.0.1 released!
"Hi Randy and all the developers, we often forget to post how good things are, a big thank you to you all for all the hard work! on  ArduCopter 3.1-rc1 and rc2, they  are the best fun one can have legally with one's clothes on.
 
My HAL quad with an…"
Sep 23, 2013
Joe commented on PX4's blog post Pixhawk Details #1: Overview of the PX4 board series (old and new)
"I am bored reading yet another Bill Of Materials BOM.This is not a receiver which can be mounted anywhere using double sided tape, it requires correct alignment with the frame, it needs mountings tabs or mounting holes,"
Sep 1, 2013
Joe commented on PX4's blog post PX4 and 3D Robotics present Pixhawk: An Advanced, User-Friendly Autopilot
""This announcement is a service to our users and developers to allow them to plan their hardware roadmaps in time, and to show what we're currently working on."I don't see a clear explanation of the concept or architecture or where PX4 is heading or…"
Aug 31, 2013
Joe commented on PX4's blog post PX4 and 3D Robotics present Pixhawk: An Advanced, User-Friendly Autopilot
"I do understand, I also know USA shipping rates rose recently, it makes this whole thing rather difficult for those outside USA, imagine you need to order one extra cable which often happens, maybe 3DR needs to look at a Chinese distributor."
Aug 30, 2013
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