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A worrying failed test ...

Started by Simon Gibson-Poole. Last reply by Simon Gibson-Poole 9 hours ago. 2 Replies

Hi All,Running a little survey last thursday looking for some Giant Hogweed and seemingly all went well with the flights (running a Vulcan Octocopter using Pixhawk with arducopter 3.2.1).  However on…Continue

How to set up Flight Mode?

Started by Lucs. Last reply by joel bessa yesterday. 8 Replies

Hi everyoneI am trying to use my Hitec Eclipse 7 transmitter (in aircraft mode) with the APM 2.5 so that I can set the APM flight modes (e.g.: loiter, alt hold, etc) using the 3-way "flt. mode"…Continue

Motors not spinning at low throttle

Started by Rayleigh. Last reply by Rayleigh on Tuesday. 11 Replies

Hi, guysI am having this problem when building my quadcopter. Three motors don't spin until throttle reaches 16% of full throttle. Only one of them is working fine. But once they are all spinning, it…Continue

drop height

Started by Martin. Last reply by Martin on Tuesday. 5 Replies

Hi,I need some help!When i put my quad in a circle of radius 0, they turn around , but fall suddenly 4 meters approx, stop turn, recovery height and continue turn.There are any parameter to correct…Continue

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Comment by Austin Laws on January 15, 2014 at 11:29am
Comment by Dennis Fuente on January 13, 2014 at 2:49pm

Hi Guy's 

So after checking my APM voltage regulator out put per the link it had 4.4 v so i ordered the new parts from digi key the board is the 2.5.2 they came i installed the new reg checked the out put of the new reg it measured 4.8 v so what gives ?


Comment by Essam on January 9, 2014 at 7:28pm

Hi guys,

Any advice on what gimbal model will allow me to use two cameras simultaneously? I am not sure if such a gimbal exists? Additionally, would it be possible to remotely trigger two cameras at the same time? Thanks

Comment by David Houghton on January 9, 2014 at 5:22am
Comment by David Houghton on January 9, 2014 at 5:18am
Comment by Dennis Fuente on January 8, 2014 at 2:37pm

the voltage is 4.3 v and my flight data page was not going crazy as most have described only the bad gyro health so wait and see i guess.


Comment by Bo Wingo on January 8, 2014 at 2:28pm

Good deal.  Just out of curiosity, what voltage did you measure?

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 ?



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