Arduino nano 33 ble head tracking

This tutorial was made with arduino nano and sensor board.

I am doing a head tracker with arduino nano 33 ble. It has no eeprom memory, so i need to rewrite a code little bit. Can someone help, I would greatly appreciate.

Not sure what you want to achieve.
If you want to keep const variable in the code - just do it,
if they should be reconfigurable - :you can connect an eeprom IC via I2 or SPI intreface then change calls for EEPROM read/write to your(or new library) functions.

take a look here, maybe it helps:

at least it helped me...

but I tell you : all kind of IMU need's proper calibration to work "ok"!

yeah I'm struggling with calibration. Can you tell me which one did you use?
many thanks