Using a MUCH cheaper uBlox GPS unit to do exactly the same thing as the Adafruit version. Be aware that from a cold start it took mine about 30 mins on the windowsill indoors on a dark gloomy, cloud covered day. But one it achieved lock it works fine.
If you want to modify the uBlox unit, go here: [ Ссылка ] and get u-center 2, a usb to serial adapter and you can mod the GPS unit for higher accuracy.
[ Ссылка ]
