MicroPython Forum (Archive)

Hi guys,

I am trying to develop a data logger using 3 UARTs and want to use a USB mass storage instead of a default microSD card.
I think micropython should have the host function for it.
However, I can't find a suitable library or class for it.
Is there any way to use it?

Thanks for your help in advance.

Check out the Teensy port.

davef wrote: ↑

Thu Jun 17, 2021 10:55 pm

Check out the Teensy port.

Thanks for your reply..
When I visit the site, I think the boards don't seem to support Micropython.
I am looking for the board to support Micropython.
Anyway thanks~

The Teensy port of Micropython does not support USB mass storage. I do not know if any port does. There is Circuitpython for Teensy 4.x which supports SD Card, and SD card support for the MP port for Teensy 4.x - or to say better MIMXRT devices - is under construction. It may take a few weeks before it's ready.

Many of the STM32 ports support USB mass storage; most notably both the original Pyboard and the newer Pyboard D.

So you can connect e.g. a harddisk to to the board and write to it?

Oh, apologies, I misunderstood; assumed it was in the other direction (ie, can mount the device as USB mass storage). My bad! That'll teach me for reading posts late at night.

No, I'm not aware of aware of any implementation of host mass storage.