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KO6NMZ > ASTRO 09.08.26 07:00l 19 Lines 977 Bytes #999 (0) @ WW
BID : TJH532KO6NMZ
Subj: Celestial Navigation
Path: IZ3LSV<IK6IHL<IK7NXU<HB9ON<DK0WUE<PD0LPM<VE3CGR<VA2RIZ<WW6Q<WG3K<
N3HYM<KA3VSP<N3MEL<KQ6UP<KO6NMZ
Sent: 260808/2326z @:KO6NMZ.#SCA.CA.USA.NOAM [Grand Terrace] DP6.15 $:TJH532KO6
From: KO6NMZ @ KO6NMZ.#SCA.CA.USA.NOAM (Maria)
To: ASTRO @ WW
I just wrote a program for a little Arduino board (a tiny computer on a
chip). This little project has its own screen and allows you to enter a
sextant shot via rotary encoders to generate a Lat/Long fix. The computer
sets the clock on shore via a Wi-Fi connection to an NTP server. That time
gets stored in an RTC (clock chip) that has its own battery. This is the
only Arduino project like this that I am aware of. There are cards for the
HP48 calculator that do this, but I wanted a small, stand-alone unit.
I have breadboarded this, and it works, but there is also a simulation of
it here:
[https://wokwi.com/projects/471829116081713153](https://wokwi.com/projects/4718
Maybe someone would be interested in this, so I thought I would share it
here. Future versions will have a clock offset table to autocorrect RTC
drift. It would also be neat to have an Arduino that can sync to WWV.
-73 de Chris KQ6UP
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