[aprssig] NMEA output GPS or compass?

Fred Hillhouse fmhillhouse at comcast.net
Thu Jun 28 10:17:06 EDT 2018

Hi David,


The two big shopping networks have things like this:




Connect puck to RS232 via DE9 connector.


Connect puck to USB.



If you are into putting pieces together …


I have one of these. No case for the PCB but with the external antenna, the module can be place out of harm’s way. The module will support RS232-TTL (great for RPi or ESP8266) and USB. You will need a 12V-5V DC-DC converter. Mine is actually connected to an ESP01 and provides NMEA over TCPIP.



A simple ~12V to 5V to possibly power the GPS module. I have several of something similar to this.



Have fun!


Best regards,

Fred N7FMH




From: aprssig [mailto:aprssig-bounces at lists.tapr.org] On Behalf Of david vanhorn
Sent: Thursday, June 28, 2018 9:25 AM
To: TAPR APRS Mailing List
Subject: [aprssig] NMEA output GPS or compass?



I'm reactivating an old project, and I would like to find an NMEA output GPS unit like the old Garmins with their four pin connector, or a compass with similar output.


What I've seen in compasses are crazy expensive ($500), and GPS units seem to all be USB output now if they have any external data connection at all.


What I absolutely need at a minimum is a compass or GPS with an NMEA output. The system has NMEA+ NMEA-, +12V power to compass/GPS and ground.  If it's a GPS unit, I would prefer some sort of simple "puck" style unit rather than something with a display and buttons to misconfigure.


Any sources coming to mind?



K1FZY (WA4TPW) SK  9/29/37-4/13/15

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