[Moon-net] Digital Elevation Readout

[jmbord at teaser.fr]

Nando,

You should get in touch with F1OAT frible at teaser.fr or have a look at
j79di.blogspot.com/.
There is a 2125 PIC to rs485 project done to 'feed' the tracking system we
were using for the J79DI expe. The accuracy & stability are good, with a
very small PIC handling the X/Y PWM and some CORDIC computation to extract
the elevation angle ...

Regards
Jm F1HDI




nando.pellegrini at tiscali.it écrit :

> Dear All,
> Being almost QRT on the operational aspect (lost half of the antennas
> first and now the elevation capability) I finally could address some
> new projects.
> I have got some time ago (thanks to DF2ZC) the famous digital
> elevation readout, interesting on its own but not enough, my goal was
> to integrate the acceleration sensor into a PC controlled tracking
> system.
> At the moment I made a prototype PIC based board communicating with a
> PC via a serial comm. The PC hosts a test application (Windows) to
> receive the information on the PC and be able to send commands to
> control the elevation motor.
> I am using the original digital elevation readout to check the
> validity of the results and bought an extra MXD2125 to be used as
> gravity info pick up, from the compared test I can say i have achieved
> the same type of precision
> Next step will be the attempt to add in the same board also the
> azimuth but since I did not identify yet what type of sensor to use
> (potentiometer or Hall Effect encoder) for the moment I postponed the
> activity.
> I am posting this info to the net because someone else can be
> interested in the same, if so, get in touch with me directly and I will
> be happy to echange my experience (I am not trying to sell anything).
>
> 73
> I1NDP Nando
>
>
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