Atmega32U as USB storage

Other Hardware Storage
1

Heslo everyone. I would like to asi fór experience with my plán:
Central unit Atmega32U connected to PC.
Unit taking data from sensors or whatever.
PC Is seening external "USB disk" with many files.
Atmega create every Hour small file.
After refreshing directory on PC we see new files.

Is IT technically feasible? Only with atmega oř with other microproc. ?

Thank you!!

2

You can use an ATmega32U4 to write data to an SD card.
Use a dedicated USB-to-SD bridge (like the CH376S or CH559) to expose the SD card as a USB mass storage device to the PC.
The ATmega would log data to the SD card, and when the PC queries the "USB disk," it will see new files.
If you wanna switch to a more capable MCU like the RP2040 (Raspberry Pi Pico) or an STM32, you can use the TinyUSB library.