GPS RTK Tests

18.01.2020

I have been testing the RTK system in my garden and I am very impressed! Here is a map of the coordinates read (in U-Center) as I walked around the garden and all the obstacles with the GPS module.

 

My GPS fence software was however showing me as being positined outside the garden at most points....?  Then I realised that the RTK GPS module is showing coordinates to 8 decimal places!

My fence data taken from Google maps is only 6 decimal places accurate.  Of course with the rounding the software was calculating my walk as outside the fence.

I will now work on a better way to input the GPS coordinates into the module.  Im thinking a button on the GPS module which saves the coordinate data to EEPROM on the Arduino.  This would be a great way to enter the fence data and ensure no bad coordinate data is inputted due to the long numbers involved.