ArduCopter User Group

Discussion group for ArduCopter users

Members: 2492
Latest Activity: 6 hours ago

Discussion Forum

Quadcopter X

Started by Umut TEKİN. Last reply by Eric Krasting 6 hours ago. 4 Replies

Hi everyone. I am new here. I have apm 2.6 and 3DR quadcopter x. I finished assemblying and setup arducopter programs to apm 2.6 via missionplanner. At last, i connect to battery and give the…Continue

A New Flight Mode

Started by Garry. Last reply by Gustav Kuhn yesterday. 2 Replies

I was flying my quad yesterday and It nearly hit me!  This is simply because I'm a pretty rubbish pilot, but on the upside I am getting better at flying these great machines.This got me…Continue

Gps Fix

Started by ismail karpuz. Last reply by Vinnie Tsoi on Friday. 1 Reply

my gps is happymodel.I keep trying but i can not gps fixContinue

altitude shoots up in alt_hold

Started by Ben Willistein. Last reply by Forrest Frantz on Friday. 4 Replies

For anyone experienced at interpreting logs, see attached...I'm assuming that I have a vibration issue, just wondering if anyone has any other opinions.  Stabilize mode first, then switched to…Continue

Comment Wall


You need to be a member of ArduCopter User Group to add comments!

Comment by Dennis Fuente on January 8, 2014 at 2:16pm

I have checked the voltage at the regulator and it is above 3.3 v so i have ordered a replacement for it my hope is that nothing else has gone down.

Thanks for the help


Comment by Bo Wingo on January 8, 2014 at 12:25pm


This regulator is being used to take the 5V board input and regulate it down to 3.3V.  When a regulator fails, it could fail multiple ways, no output (Hi-Z), output grounded, or output shorted to input, for example.  This one in particular seems to favor failing with the output (normally 3.3V) shorted to the input (5V).  You will need to perform the check documented in the video on the page that I linked to confirm if this is indeed the issue that you are observing.  It's a pretty simple test if you have a basic multimeter.  If that's the issue, replacing the regulator should get you back up and running.

Comment by Dennis Fuente on January 8, 2014 at 11:24am

Ok so help me wrap my head around this the regulator blows but it dose not blow open as i would expect it leaks a higher voltage i think the chip quality is the issue.

  So after the regulator is replaced everything works normally ?


Comment by Steve Lewis on January 7, 2014 at 2:43pm

Thank you Bo Wingo! This is exactly what I need.

Comment by Bo Wingo on January 7, 2014 at 2:38pm

Take a look at the "AC3.1 & blown 3.3V regulator" blog post to understand the issue of the blown 3.3V regulator and how AC3.1 uncovered the issue.  This information should also help you zero in on identifying whether this is actually what happened to your hardware.

Comment by Steve Lewis on January 7, 2014 at 2:33pm

@John McGrath and others. I am curious about the regulator that has been mentioned. Do you have a location on the board or schematic? I ask because I bought a used APM 2.5 and have had issues with it concerning updating to 3.1. I'd like to replace mine and see what my results are.

Comment by John McGrath on January 7, 2014 at 2:14pm

Guys if you have a bad regulator why not fix it? Most are all DIY types on here get a soldering iron (low wattage) and replace it then get the better update. If mine was blown thats what I would do.

Comment by Dennis Fuente on January 7, 2014 at 2:01pm

So i went back and installed 2.9b and the same thing occurred bad gyro health prearm health bad on the flight data page and i cannot arm the ESC's funny it all worked prior to updating to 3.1 is there a way to fix it ? not going to purchase another APM any help appreciated.


Comment by Dennis Fuente on January 7, 2014 at 12:30pm

Hi Sean 

 Yes i see that this is a common problem after updating to 3.1 i would think that 3dr would take care of the issue guess not. 

Thanks for the information i am going to try and go back to previous 2.9


Comment by ShadowAir Ltd. on January 7, 2014 at 12:25pm

[Moderated comment as an advertisement]



Season Two of the Trust Time Trial (T3) Contest 
A list of all T3 contests is here. The current round, the Drone Delivery Challenge, is here

© 2015   Created by Chris Anderson.

Badges  |  Report an Issue  |  Terms of Service