Re: Low cost GPS receiver?

[Daniel O'Connor]

> On 30 Mar 2023, at 08:37, Hal Murray <halmurray@sonic.net> wrote:
> Is there a popular low cost GPS receiver that requires (at most) only 
> moderate 
> amounts of soldering?
> 
> If I had asked 20(?) years ago, the answer would have been Garmin GPS-18.
> 
> I'm looking for something with a good PPS.  I'm assuming it goes in via a 
> modem control signal on a serial port.  So USB is out.  I'm interested in 
> PCs/servers that have PCI slots.
> 
> Half the battle is power.  I'm happy to steal power from USB.
> 
> I have a couple of PCI/Serial cards with a jumper option to supply 5 or 12 
> volts.  (I'll have to check which pin the power comes out on.)
> 
> 
> There are several GPS-HATs for Raspberry Pi.  Does anybody have an up to date 
> list?
> The PPS goes in via GPIP.  It works well.  The Pi 4 has a real (not USB) 
> Ethernet.  It makes a good NTP server.

For NTP purposes USB is fine, and solves both the communications and power in 
the same cable and you don't have to do any soldering either :)


--
Daniel O'Connor
"The nice thing about standards is that there
are so many of them to choose from."
-- Andrew Tanenbaum