How to use GT-521F52

I am using GT-521F52.

There is “setdatabase” in the sample code, but this does not work.

I am in trouble because the template obtained with “getdatabase” cannot be uploaded to the module again.

Does anyone know how to solve it?

Hi Takahiro Kitano,

Which example code are you using and what development board are you using with the GT-521F52? The “getDatabaseStart” or “getdatabaseEnd” functions are [not supported in the Arduino library so I am not entirely sure what code you are using here.](Fingerprint_Scanner-TTL/src/FPS_GT511C3.cpp at master · sparkfun/Fingerprint_Scanner-TTL · GitHub)