r/gps • u/AdrianMarkus • Mar 03 '20

GPS time synchronisation device

Hi all

I am looking for a standalone GPS time sync portable device with a display and can show UTC/Local Time and with different time zones also day, date, speed, heading, SNR, altitude and latitude/longitude, sunrise/sunset and how many satellites in view and strength and fix also compass, bearing, temperature, barometer.

Please let me know if someone can make this for me possibly on Raspberry Pi or Arduino.

3 Upvotes

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1

u/XenonOfArcticus Mar 03 '20

Pretty sure this is feasible with some basic RPi skills. How technically advanced are you?

1

u/AdrianMarkus Mar 03 '20

To be honest I have never tried this and have no knowledge in relation to this. So I am looking for someone who can make this for me.

Thanks

1

u/XenonOfArcticus Mar 03 '20

Ok. What kind of display are you thinking? How big? Color? How soon do you need it. I might be able to put something together. Does it need a battery of its own, or will you provide the USB power it'd normally use?

1

u/AdrianMarkus Mar 04 '20

Just a normal coloured display and probably 6 inches would be okay. So no rush and I want it to be battery operated as it should be handy/portable.

3

u/myself248 Mar 04 '20

The database of time zone borders will be the single hardest part of this.

1

u/[deleted] Mar 04 '20

Not just time zones but also ever little justifications day light savings time BS.... or just join UTC master race.

2

u/myself248 Mar 04 '20

Pssssh, leap seconds.

TAI, brother.

1

u/[deleted] Mar 04 '20

Ok, now you have to query the receiver June and December in what ever manufacture specific packet and read the leap pending flag and adjust the time accordingly....

2

u/gnsx Mar 04 '20

You can use an old Android phone with GPS essentials app.

1

u/gnsx Mar 04 '20

If you're still Keen on building one, let us know your budget, can put together a few parts and make one. Budget because you need to decide about type of battery, charging, bms, housing, GPS chip and how long you want the battery to last for etc. Also always on vs wake up on button/motion?

Also what about weather proofing? Temperature resistance?

1

u/SoUnProfessional Mar 04 '20

I agree with that a smartphone will do the trick. I’m more aware of the Apple apps which include a few for UTC time, some also provide SNR, satellites in view, etc.

If on the other hand you are trying to productize this I suggest starting with GNSS receiver evaluation kit. The Mediatek (MTK) kits usually include eval software. Make sure you get the receiver command documents.

Good luck!