GPS coordinates in a loop

[SteveJG]

Welcome Przem.

Yours is not a silly question.

@Przem_K

show a message when I'm at specific location

The method you are trying to determine if you have arrived at a specific location will not work for numerous reasons. Some of these reasons are discussed in Using the Location Sensor . To solve your issue, requires an understanding of how a GPS works, the article explains that.

Here are methods that will work

Location sensor (ringed fence / circular ringed fence)

I do not believe what you tried will work unfortunately. How to tell you if your device is near a destination is either to create a ringed fence and determine whether you are in the polygon of the geocoordinate limits or to calculate your distance from point of interest and when that distance is within certain limits; do something. A simple way to determine how far you are from a destination is described here: Geofence - using the MIT Map and Circle components to define a circular geofence b…

@Przem_K

GPS coordinates are refreshing with interval of 1 second

unfortunately this is not how a GPS receiver works. The LocationSensor only will report a location change after a satellite satellite fix. Most cell phone gps receivers, at best, refresh after about 20 seconds.

Good luck with your Project.