[time-nuts] GPS seconds conversion on an Arduino

Chris Albertson albertson.chris at gmail.com
Mon May 15 18:01:11 EDT 2017

On Mon, May 15, 2017 at 1:49 PM, Ben Hall <kd5byb at gmail.com> wrote:

> Hi Chris and list,
> On 5/15/2017 1:22 AM, Chris Albertson wrote:
>> Are you still going for Sidereal time?  If so that is floating point
> I'm not sure how Sidereal time came up...it wasn't one of my goals and
> after reading the discussion, it's going to be way past what I think I can
> understand, never mind program onto *anything*.  ;)
> This is my favorite under $2 boards now - http://r.ebay.com/9UasSq
> That blows my mind!  $1.62 shipped.  Amazing!  I read what you wrote on
> different boards and I've got a lot of poking around and reading to do. The
> idea of dropping a file onto a USB-looking drive is very appealing to me.
> And they seem to be very cheap.  To be honest, being more towards the
> "idiot" end of the embedded programming spectrum, I'm really thinking I
> should stay with slower, simpler, and more well documented stuff.  If I
> knew what I was doing...I'd probably be ordering up some of cheaper, more
> off-the-beaten-path stuff that's way less expensive.
> One more bit of advice.  Buy a logic analyzer.   I was using one today and
> I've been on the lookout for a dedicated bench one at a good price...but
> nothing has tickled my fancy.  I'm going to order one of those $10 Saleae
> clones this evening.  That Saleae clone analyzer would be just the ticket
> to see if the time information is coming from the serial port before the
> 1PPS tick.  This is what is written in the little TruePosition information
> we have and would be nice to verify.  :)
> Thanks much and 73,
> ben, kd5byb
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Chris Albertson
Redondo Beach, California

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