SAKATA 3D PETG filament is suitable...
The ATmega328p-PU microcontroller is initially programmed with additional hardware devices, called ICSP (In-Circuit Serial Programming) pins.
This ATmega328p-PU microcontroller comes pre-programmed with a bootloader for Arduino UNO compatible boards.
STM32F401CCU6 Microcontroller Development Board
MCU 7KB 192 RAM 22 I / O 8-bit
CPU 8B 1MHZ 68RAM
MCU 14KB 368 RAM 33 I/O 8-bit