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Re: [Paparazzi-devel] recommended remote / radio control for SUMO-like p
Re: [Paparazzi-devel] recommended remote / radio control for SUMO-like ppz-system
Wed, 20 Nov 2013 10:05:24 +0100
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the idea of the SUMO instructions is to describe a well tested system
that can be build by scientists that have little or no
RC/electronics/software experience. The mentioned parts have been used
in harsh conditions (mainly low temperatures) and worked without issues.
SUMO still uses a LPC-2148 processor based (Umarim) board as it just
worked over the years and there were no features missing that the new
processors/boards can give (as an additional UART for Spektrum). That
should not mean that new boards should not be used...
A PPM signal is needed for the LPC boards. The Graupner HOTT would also
work as Sergey mentioned. As he said, some receivers can be programmed
to give a PPM sum signal, some (sort of hidden) instructions for the
GR-16/MC-32 are in
On 11/19/2013 10:51 PM, Andreas Philipp wrote:
I'm completely new to PPZ and only have some (not much) experience with
conventional rc-flight using a spektrum dx6i and a graupner mx16 radio.
Now I have to buy a new radio control (among the rest) in order to build
a SUMO-like drone for meteorological measurements at university (and it
should be done quickly as always at the end of the year).
The plan is to build a SUMO-like prototype which should require as few
work and troubles as possible in order to have a working system for
learning first and then address to modifications later. The plan is to
work through the bill of material at
http://paparazzi.enac.fr/wiki/SUMO/prepare_electronics and order the
parts from different dealers. However concerning the radio control I
don't know what's the best to do.
In the SUMO description
(http://paparazzi.enac.fr/wiki/SUMO/rc_transmitter) the Futaba T8FG and
the Futaba T7C are used, but in fact I would tend to the DX8 radio
control which allows to use the receiver satellites (some thing I do not
understand fully yet, but which seems clever to me).
However I figured out in the wiki that "Proper Spektrum support is only
provided for the STM32 based autopilots. ", however I am not sure
whether we need to have a Umarim lite for building a SUMO or if the
Umarim could be replaced easily by an APOGEE (with all the sensor
connections and so on). It is important for me first to have a more or
less trouble free system, in order to learn how everything should work.
The RC should be easy to use (i.e. 2,4 GHz) have some additional
telemetry (especially a vario beside the PPZ system if possible) and
allow a range of up to 1-2km (as usual radios do as I understand). Eight
channels are preferred (even it is now used only with a flying wing
which just needs 3 channels for throttle and 2 rudders). A three way
switch is also important for the autopilot mode it seems. Costs for the
RC including receiver should not exceed 400 euros (550 dollars).
As far as I understand any other RC than Spektrum needs ppm-support,
which the Futaba seems to have. A ppm-encoder should be avoided.
Can anyone please give advise, which RC can be recommended for this set
up (or in general for ppz-support)?
Thanks a lot!
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