ArduPlane User Group

Discussion group for ArduPlane users

Members: 1470
Latest Activity: on Tuesday

Discussion Forum

Quad plane pitch problem

Started by Andrew Ferry. Last reply by Chris Anderson Apr 9. 2 Replies

Hi I have been setting up 2 quad planes, pretty standard setups...flying wing with 4 vtol motors and a rear mounted pusher motor. Both builds wich are on different firmware versions have reversed…Continue

Tags: Quadplane

PreArm Check Error : Gyros inconsistent

Started by Victor Adrian Toledo. Last reply by Victor Adrian Toledo Feb 28. 2 Replies

Hi guys, I have a Pixhawk from Radiolink and always in every first attempt of armed I get the error "PreArm: Gyro Inconsistent".The most strange thing is that i'm using only the external…Continue

Tags: gyros, prearm, arduplane

ArduPlane 3.4 - can not arm APM with a rudder

Started by Pavel. Last reply by allen baliton Nov 1, 2018. 3 Replies

I am trying to setup and to configure my APM 3.1 mini with FliteTest Blunt Nose Versa flying wing and ArduPlane 3.4 firmware. I have more or less everything connected, setup, configured and working,…Continue

Tags: arming, APM, 3.4, ArduPlane


Started by Rick Kwan Oct 30, 2018. 0 Replies

Hello, I'm new to ArduPilot, but not to computing or open source.  I'm working with a group building a tailsitter with a single pair of props for both hover and horizontal cruise.  (For type of VTOL,…Continue

Comment Wall


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

Comment by Colin on December 1, 2011 at 4:42pm

This is the main difference between the sentry and the plush, the 5v line is using a switching regulator on the sentry, instead of a linear BEC

Comment by Colin on December 1, 2011 at 4:22pm

Turnigy sentry ESCs might be worth a look in, they have switching BECs built in, so can handle something like double the current on the 5v line whilst also being more efficient

Comment by Anish on December 1, 2011 at 4:06pm
Castle seems to be better, I do have castle Mamba xl for my "baja ardurover" I haven't tested it yet ....but my test bench gave decent results
Comment by David Long on December 1, 2011 at 3:41pm

I bought a Castle BEC a few months ago and I've been staring at it :) wondering: Is the BEC necessary because the ESC is designed poorly?  Why doesn't someone make an ESC that isolates the motor pulse circuit from the BEC?

Comment by Anish on December 1, 2011 at 11:15am

@David i tend to use BEC's i do admit having doing some analysis and it doesnt look that great. I generally use hobbywing pentium or similiar once for ESC

Comment by David Long on December 1, 2011 at 10:37am

I really am of a mixed on this.  On the one hand, the amount of current that the ESC must supply to run the servos, APM, Rx, and Xbee is trivial compared to the motor's draw.  (This points to quality, not quantity.)  But the fact that longer servo leads causes the APM to send erratic signals makes it seem like power threshholds might be involved.  I guess what I need to do is throw an oscillascope on the leads coming out of the good and bad ESC and find out what's happening. 

Comment by David Long on December 1, 2011 at 10:30am

Warren... Yep, the Xbee is on there too.

Comment by Warren Eather on December 1, 2011 at 12:33am
David, that is interesting! I,ll have try the shortening of aileron cables. Do you have a xbee connected? Maybe the extra cables are acting as an antenna inducing a bit of voltage ripple on the apm.
Comment by David Long on November 30, 2011 at 10:51pm

Warren, I agree with you on the quality of the current being the big factor.  However, capacity comes to mind... when I removed the aileron servos (which together have leads about a meter long) and attached a single lightweight servo with no extensions, the problem vanished.  When I added two or three servo extensions to this "good" servo, the problem reappeared.  Somehow, the added resistance of the long servo leads puts an unworkable load on the APM.  (I fly RC pattern planes and I have noticed that larger ESCs increase servo performance and resolution.)

Comment by Warren Eather on November 30, 2011 at 9:58pm
Hi David, I think your right about a funky ESC being the cause of your issue, but I believe that it's due to the quality of the BEC's regulated 5 volts than the current rating of the ESC. My ESC was suppling a noisy 4.5 volts with similar results that you experienced. I.E. Pulsing servos and intermittent APM rebooting.

© 2019   Created by Chris Anderson.   Powered by

Badges  |  Report an Issue  |  Terms of Service