hello,
An possible reason of yours problems, the aswer in your mail
Le 23/08/2011 22:27, Prof. Dr.-Ing. Heinrich Warmers a écrit :
Hello world,
today we have found same reasons for the malfunction:
1. One digital servo (elevator) stop moving and hang sometimes
by
collection to receiver or tiny13 . Connecting to a spectrum
2.4GHz
the servo work without problems.
Propably, your servo have a big current drink, and generaly on
numerique servo this curent is drink in very small time, and very
big current, this the perfect scheme to fail the small power supply
of the tiny.
Has someone had trouble with digital servos by using a
Graupner
35Mhz transmitter? Is the impulscheme other than by analog
servos?
generaly, it is not a transmiter problem, its a receiver problem, or
a servo spec. Some servo ask to have the same level for the pulse
and for the power.(they don't like to have a 5v signal and a 6v
power....)
2. Compiling with an old Siemens laptop results in a wrong object
code
in the LPC2148. There were no error massages given. By using a
new
laptop compiling the same sources we found no malfunction.
"very fun", good luke.....
Regards
Heinrich Warmers
Prof. Dr.-Ing. Heinrich Warmers schrieb:
Dear Christophe,
tanks for the information.
We use 868 MHz and will test the ACT-reciever from
Mikrokopter.
Regards
Heinrich
Christophe De Wagter schrieb:
The
Penta
Profi is not a good receiver in the presence of noise. E.g.
with
our 868MHz longrange modems we start getting very significant
interference at 100m and at 300m loose control. Other
receivers like
the one they sell at mikrokopter are far less sensitive to
this.
-Christophe
On Wed, Aug 17, 2011 at 10:17
PM, Prof.
Dr.-Ing. Heinrich Warmers <address@hidden>
wrote:
Hi,
we are flying the following configuration:
Graupner MC22 (9 channel impulses),
Profi Penta RC- receiver,
Tiny13,
25A Hype bruschless controller,
3 Hitec digital servos.
In manual and auto1 mode we lost often and
sporadic the control over
the aircraft.
The result is a crash.
It seems that the servos make maximum ways and the
neutral setting is
wrong.
For a configuration with:
Tworg,
MC16/20 and MC15 (8 channel impulses),
Hitec-RC-reciever and
2 Hitec analog servos
we have never seen a malfunction.
Has someone a idea how we can find the error?
Regards
Heinrich Warmers
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