GPS speedometer

zoli2496 · Post by **zoli2496** » Sun Sep 11, 2022 6:02 am

Hello.

I want to build a speedometer with a 7 segment display. I want to use the GPS macro for this. What should I set in the GPS settings? How and which macro component should I use to read the speed value in km/h from the GPS?

I guess it's not that simple. I have attached a file.

Thank you very much.

GPS_TESZT_SPEED_NANO.fcfx: speedometer; (10.81 KiB) Downloaded 146 times

zoli2496 · Post by **zoli2496** » Sun Sep 11, 2022 6:59 pm

Hello.

Does "ReadGroundSpeed" in the macro return that international nautical mile? (nmi)
I converted the value to km/h.

Thank you.

Post by **Steve-Matrix** » Mon Sep 12, 2022 9:23 am

Raw GPS data returns ground speed in knots (nautical miles per hour) and so I assume the figure returned is in those original units.

Post by **chipfryer27** » Mon Sep 12, 2022 9:31 am

Hi

This might be of help.

https://m2msupport.net/m2msupport/tutor ... -nmea-gps/

Regards

Post by **BenR** » Mon Sep 12, 2022 10:21 am

Hello,

Looks like your program should be about right. If it's not working then maybe check the baud rate of the GPS is correct and that the GPS is in a place where it can get a signal.

GPS speedometer

GPS speedometer

Re: GPS speedometer

Re: GPS speedometer

Re: GPS speedometer

Re: GPS speedometer