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Re: [Paparazzi-devel] Arduimu Integration Problem

From: Rafael Espino Gómez
Subject: Re: [Paparazzi-devel] Arduimu Integration Problem
Date: Wed, 9 Feb 2011 17:51:27 +0100

Thanks Nicola,

This problem is present for me in MANUAL, AUTO1 and AUTO2. I'm going to buy inmediatly the new version with 16Mhz resonator and new sw and try it as soon as possible.


Rafa Espino.

2011/2/9 address@hidden <address@hidden>
Hi Rafael,

Seems to be normal. My servos behave the same in MANUAL, in AUTO1/2 they're dead solid. Seems to be the PPM
Encoder, allegedly there is a new version out there with new hw/sw which solves this.

In the mailing list i found this
statement of the creator (hendrix aka chris e);

This seems to be the explanation, however
i never could be bothered to order a new one so i fly with jittering, no relevant problems at all.



----Ursprüngliche Nachricht----
Von: address@hidden
Datum: 09.02.2011 09:24
An: <address@hidden>

Betreff: [Paparazzi-devel] Arduimu Integration Problem

Hi all,

Does anybody know about this problem?

Are these periodic pulses normal?



El 4 de febrero de 2011 09:21, Rafael Espino Gómez

> Hi Chris,
> I tried
thiis week disconnecting the modem and powering the servos with and
> external BEC and the result was the same.
Later, I tried to test with the airframe of other model and a remix between
> EasyStar and twinstar airframes.
> The
fast crazy movements disappeared!!! But I have still a little problem.
> You can see at this link:
> The servos (aileron and elevator, not
rudder) have a  periodic movement of
> two or three pulses. This pulse is higher if the attitude is far from the
objetive attitude. What is the problem? In MANUAL mode there isn't  this
> periodic movement.
> El 23 de enero de
2011 22:06, Rafael Espino Gómez <address@hidden>escribió:
> Hi Chris,
>> Yes, I power the Servos from the
TWOG 5V rail.
>> Tomorrow I will try the things you say:
>> -Power the servos from a external BEC.
>> -Disconnect
the modem (XBEE PRO 2.4GHZ).
>> -Test with the IR sensors.
>> I'll report you the results.
>> Rafa.
2011/1/23 Chris <address@hidden>
>> Do you power the servos from a high amperage BEC or from the autopilot's

>>> 5v rail?
>>> Generally it is a bad idea to power the servos (any servo in fact) from
>>> the autopilot's 5v rail.

>>> Well if the elevator moves in AUTO1 (not AUTO2) without moving the rc
>>> transmitter stick then there is
>>> a
problem as in AUTO1 the elevator should only move if you move the plane
>>> or the rc transmitter stick.
>>> If this is
the case i can't think of anything else that could move the
>>> elevator other than a low voltage
>>> source with small
current ability causing a reset, bad wiring, rf noise
>>> from the modem
>>> (you could try and disconnect the modem)
or a defective unit.
>>> Also if you have the IR sensors you could try and test the installation
>>> with those in
order to isolate the
>>> cause of the problem.
>>> Chris
>>> _______________________________________________

>>> Paparazzi-devel mailing list
>>> address@hidden

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