/gpstime

adjust local system time and location via gps (nmea) dongle (usb/serial) (app/lib/api)

Primary LanguageGoBSD 3-Clause "New" or "Revised" LicenseBSD-3-Clause

OVERVIEW

Go Reference Go Report Card Go Build

paepcke.de/gpstime

  • needs go1.20 (currently:rc-status) to compile (sorry)
  • set local system time from usb gps dongle (nmea mode)
  • set local site coord information from usb gps dongle
  • focus on embedded systems, environmental friendly systems
  • focus on low energy use and secure and relyable operation
  • not the right choice for sub second critical applications (!)
  • 100% pure go, minimal(internal-only) imports
  • use as app or api (see api.go)

INSTALL

go install paepcke.de/gpstime/cmd/gpstime@latest

DOWNLOAD (prebuild)

github.com/paepckehh/gpstime/releases

SHOWTIME

set time

gpstime
Apr 25 06:50:25 rpi2b32-pnoc gpstime[49152]:  ### INFORMAL ### LARGE [initial] TIMEJUMP ### TRYING FAST FORWARD 
Apr 25 06:53:02 rpi2b32-pnoc gpstime[49152]: srv  time: 2022-04-25 06:53:02 +0000 UTC 
Apr 25 06:53:02 rpi2b32-pnoc gpstime[49152]: loc  time: 2022-04-25 06:50:25.734559739 +0000 UTC m=+1.230512813 
Apr 25 06:53:02 rpi2b32-pnoc gpstime[49152]: diff time: 2m36.265440261s

set localtion

gpstime location /dev/gps0
cat /var/gps/.location]
#!/bin/sh
export GPS_MODE="gpstime"
export GPS_LAT="53.56409"
export GPS_LONG="9.95747"
export GPS_ELEVATION="0"
export AIRLOCTAG="128@X3UR-KY-LURRJI-UJ-DXHY"
export GPS_SUN_RISE="03:02:02"
export GPS_SUN_SET="19:33:42"
export GPS_SUN_NOON="11:17:24"
export GPS_SUN_DAYLIGHT="16h31m40s"

DOCS

pkg.go.dev/paepcke.de/gpstime

CONTRIBUTION

Yes, Please! PRs Welcome!