[Moon-net] Moontracking - PIC

Walter Crauwels, ON4BCB on4bcb at skynet.be
Tue Feb 5 03:02:54 CST 2008


Jean-Marc

In the past about 10years ago there was a very powerfull standalone tracker 
with a 8051 (these days antique)
It was called "Trakbox", there is also OE5JFL's stand alone tracker.
But I agree with you that it is more than time to have a
modern standalone tracker now that such a powerfull
MCU's excists like microchip and atmel

If you have any knowledge of someone who is develloping this please let me 
know

Walter

----- Original Message ----- 
From: "Jean-marc BORD" <jmbord at teaser.fr>
To: "MOON_NET" <moon-net at list-serv.davidv.net>
Sent: Tuesday, February 05, 2008 8:10 AM
Subject: [Moon-net] Moontracking - PIC


Hello,

With the availability of powerfull new Pic families , I am looking from
someone from the EME community who succeeded in computing  the moon
position  (AZ,EL, 0.1° accuracy)  on a seldom 'rather small' _*microchip
Pic*_ (like a 4550 or equiv) and in C langage (on the paper, one just
need a realtimeclock , lat lon coordinates + the right algo).

I need to substitute (translate remove) the link between the tracker and
the Pc for Expe purpose. My first experiences on a 16F877 went
unsuccessfull, too many stack calls and the trigo was 'Pic consuming'.
I am currently working on another solution based on a static table
containing downloaded moon positions but 5 days of tracking with 0,1°
infos with a 8k eeprom is the far end, and I need roughly 10 full passes.

Please answer to me offline,
Kind regards
Jean-marc F1HDI
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