GPS Module

Ublox GPS Module

GPS devices are getting very small and very cheap, and they pretty much all use the NMEA standard. This transfers simple human-readable serial data at 9600 baud.

To use a GPS module, just wire it up as follows. I'm using the Ublox NEO6MV2 module:

GPS Espruino
VCC Bat
RX C10
TX C11
GND GND

Note: The Ublox NEO6MV2 has a voltage regulator on board - however if you have a different module then it might need a 3.3v supply.

For software, just do something like the following:

Serial4.setup(9600,{tx:C10,rx:C11});
var gps = require("GPS").connect(Serial4, function(data) {
  console.log(data);
});

This will return data every second that looks a lot like:

...
{ "time":"16:35:29", "lat":53.068403,"lon":-4.076282,"fix":1,"satellites":7,"altitude":1085.0 }
...

The latitude and longitude are in degrees North and East respectively, and altitude is in meters.

There's a lot more data available from the GPS (such as velocity), and hopefully the amount of data returned to the callback will increase as the library gets more full-featured.

Using

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