Re: Low cost GPS receiver?

[Chris Kuethe]

Both of these have worked well for me. One has an SMA connector if you already have an antenna somewhere, or are putting the receiver inside a chassis. They both have 5 pins: power, ground, tx, rx, and 1pps .. and you can power them from their USB interfaces while using their tx/rx/1pps for timing.

https://www.amazon.com/Microcontroller-Compatible-Sensitivity-Navigation-Positioning/dp/B07P8YMVNT/r

https://www.amazon.com/HiLetgo-Satellite-Positioning-Arduino-Replace/dp/B07X5GVW6Q/

On Wed, Mar 29, 2023 at 3:07 PM 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.

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