[time-nuts] Reading data from Thunderbolt using an Arduino

[Russ Ramirez]

Thanks Chris. The reason for the LEDs is that I am re-purposing a Netgear
VPN Router case, which is steel and a bit more difficult to work-over than
aluminum or plastic :-) The size of the case is good and a very good fit
for this project. I may change my mind and go with a smaller case  and one
of the 2x16 LCDs I already have, but other than the clock, the rest of it
was already there and seemed sufficient for an "at a glace" kind of display.

I guess I didn't know that the TBolt could be placed in NMEA mode. After
posting this I did an RTFM and found a few answers in the TBolt manual :-)

Russ


Some kind of uP really is a good idea.  But why use LEDS?   Get a 2x16
> LCD.  They cost $6 and are much easier to drive with an Arduino.  They
> can have scrolling text.
>
> Yes. you are getting binary data.  You are going to need to red the
> manual.  Or put the t-bolt into NEMA mode.
>
> On Thu, Apr 4, 2013 at 7:56 PM, Russ Ramirez <russ.ramirez at gmail.com>
> wrote:
> > I've been playing around with the idea of using an Arduino UNO to read
> > information out of my Thunderbolt GPSDO via the serial port rather than
> > using a PC (99% of the time anyway). The idea here is to get the time and
> > some status info to drive an LED display and some LEDs to show the time
> > adjusted to Central time, light up to 8 LEDs to represent the birds that
> > are currently locked onto, and one LED for a Major alarm.
> >
> > I just received the RS232 to TTL converter breakout board today and I can
> > see received data over the hardware serial RX pin. Now I know that TB
> uses
> > TSIP and not NMEA msgs, but is TSIP binary? I am getting this kind of
> thing
> > at 9600:
> >
> > ?V??F?.?? ??'N?/??@p q:y?   etc....
> >
> > about once per second. I found this code on Google Code and the header
> file
> > here
> >
> >
> https://code.google.com/p/arduino-trimble-thunderbolt-gpsdo/source/browse/trunk/libraries/Tsip/Tsip.h?r=31
> >
> > implies to me that I should use this as a starting point as this sure
> ain't
> > ASCII coming over the wire. Does this sound right?
> >
> > Thanks,
> > Russ
> > K0WFS
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>
>
> --
>
> Chris Albertson
> Redondo Beach, California
>
>