GPS Distance calculation from 2 coordinates

Other Hardware Robotics
1

Hey everybody,

I'm working on a GPS navigated robot and I want to calculate between current coordinates and past coordinates. anybody can teach me?

2

Doesn't your GPS library do this for you?

3

See Calculate distance and bearing between two Latitude/Longitude points using haversine formula in JavaScript

The standard Arduino does not support double precision floats, and is not accurate for GPS navigation.

4

in my gps programing not include library yet. 'cause in my programming still processing change gps raw data to actual coordinate and combine it to controll robot. so what must I do?

5

so what must I do?

Study the web page linked in reply #2, or use libraries like TinyGPS++ or neoGPS.

6

Or (for short distances) Google "Pythagoras"

7

Mr. Pythagoras' contribution is discussed as "the equirectangular approximation" here.

8

but if the program like this? is it working? 'cause if im apply it in my arduino ide, nothing show in serial monitor.. here

9

If nothing shows in the serial monitor, it is not working.

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