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Re: [Paparazzi-devel] RC signal lost not clean and tiny reset issue

From: miles
Subject: Re: [Paparazzi-devel] RC signal lost not clean and tiny reset issue
Date: Fri, 3 Apr 2009 17:38:18 -0500

On Fri, Apr 3, 2009 at 17:19, Paul Cox <address@hidden> wrote:
2) In manual mode, moving all servos to their extremes simultaneously (rudder, ailerons, elevator) I can get the Tiny to reset. I am using a charged 3S pack and the voltage reported in the GCS looks really good (12.3), but obviously there must be some dip or spike that's affecting the processor enough to reset it. What are your suggestions?

My group has run into that also.  As a temporary work-around, we power the receiver and servos from a separate battery (not connected to Tiny2.11).  Be careful to disconnect the power line between the Tiny2.11 and receiver -- if not you will *damage* the Tiny2.11, at least the voltage regulator.

For us, the problem was even worse than reseting the Tiny2.11, it put the Tiny2.11 in a strange mode where the servos would twitch periodically and not respond to Manual RC commands.

Does anyone know of a nice way to determine the total power drawn by all the servos actuating a full strength simultaneously?  I guess there should also be a calculation to compute a rough upper bound on this.


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