[bars] Alive! It's alive!

Marla A. Wallace wa1gsf at comcast.net
Sun Jun 11 13:57:34 EDT 2023


More frequently than that for nearby objects with large proper motions.😀

Me ke aloha
-- Marla

On June 11, 2023, at 13:45, KC1SOZ <kc1soz at bd5.com> wrote:

Ok, but then you have to update the catalog every hundred thousand years or so as the objects move around in the sky. 🤣🤣🤣🤣🤣


73,

KC1SOZ

Juan



On Sun, Jun 11, 2023 at 1:17 PM Marla A. Wallace <wa1gsf at comcast.net> wrote:

Ah, not having the camera input, my program works from an object catalog.  So it's running "open loop" on catalog data, location and time rather than with the feedback from the autoguide camera.

Me ke aloha
-- Marla



On June 11, 2023, at 13:04, KC1SOZ <kc1soz at bd5.com> wrote:


Yes. I get that. But what I found more challenging was taking the image from the autoguide camera, allowing the user to select what to guide on, and then tracking that as it moves. 


73,

KC1SOZ

Juan



On Sun, Jun 11, 2023 at 12:56 PM Marla A. Wallace <wa1gsf at comcast.net> wrote:

It would be essentially the same algorithm, but whereas I update the computation once a minute, your algorithm would have to use higher precision in the time and recompute every second.  Then convert alt-az to slew commands.

Me ke aloha
-- Marla



On June 11, 2023, at 12:12, KC1SOZ <kc1soz at bd5.com> wrote:


That's pretty cool. I wanted to try my hand at making an autoguider for my telescopes as well, but soon lost interest. 


73,

KC1SOZ

Juan



On Sun, Jun 11, 2023 at 11:07 AM Marla A. Wallace <wa1gsf at comcast.net> wrote:

I have been working with the Raspberry Pi Pico, myself.  In the course of experimenting, I breadboarded a device that sent a canned morse message, but my major project was for astronomy: it told me the altitude and azimuth to point a camera to take astrophotography of a given object.  That used the Pico and a GPS receiver, an LCD display and a little glue logic.  I wrote it up for the BARS newsletter a couple of years ago.

Me ke aloha
-- Marla



On June 11, 2023, at 06:47, paulacrock at fastmail.com wrote:


Very cool!  I've done a lot of work with Arduinos but haven't yet used them in this hobby. 


KC1EDA


On Sat, Jun 10, 2023, at 11:04 PM, KC1SOZ wrote:

I find it amazing how easy it is to work with these little Arduino boards. This tech is pretty cool stuff. In exactly one day I have my little ESP32 board and optorelay connecting through bluetooth to my computer and sending out picture perfect morse through the CW jack, and all for maybe $25. By doing this, I am also picking up morse code much faster. If anyone would like to do the same thing with your rig and computer let me know.  


73,

KC1SOZ

Juan



On Sat, Jun 10, 2023 at 6:17 PM KC1SOZ <kc1soz at bd5.com> wrote:

My Arduino-powered CW keyer has awakened and taken its first steps. I always get s kick when my creations wake up and say "Hey! Where in the wide, wide of world of sports am I??" 🤣🤣🤣



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  paulacrock at fastmail.com



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