Arduino stuff

[chese]

Hello everyone, I have a small problem. I need precision, but all I can obtain are the first 6 decimals, and I need 19. Does anyone know how to achieve this?
D = String(latitude,6) + "," + String(longitude,6);
I need a final result as a String.

 

[VBService]

Have you tried:

Gammon Forum : Electronics : Microprocessors : Arbitrary precision (big number) library port for Arduino

Gammon Forum : Electronics : Microprocessors : Arbitrary precision (big number) library port for Arduino

www.gammon.com.au

GitHub - nickgammon/BigNumber: BigNumber library for the Arduino

BigNumber library for the Arduino. Contribute to nickgammon/BigNumber development by creating an account on GitHub.

github.com

 

[Phro0244]

Thank you for the quick response! Chese is my other account. In fact, the fact that they are large numbers works very well, and I manage to have all my decimals when my number is in Float. The problem is that if I want to convert it to a string, it only gives me the first 6 decimals.

Serial.print(latitude, 19);
Floating-point real number: -62.4277725219726562500

D = String(longitude,19);
Number as a String: -62.4277730000000000000

Thank you for any possible response!