Stm32multiserial

Dual usb2serial converter based on stm32f103

Dmitry Shapovalov

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Description

It's a "two in one" usb2serial converter based on cheap chinese stm32f103 board. It implements standard USB CDC class, so it will work without additional drivers.

Details

Currently, it supports only 8 bit word length, none parity and 1 stop bit.

If you need other options, drop me a line ;)

Components

1 × stm32f103 "blue pill" board actually any stm32f103 board will work

Discussions

allankliu wrote 05/22/2018 at 22:43

Have you tested in previous Linux? I had one F103 project running USB CDC, which works in Ubuntu 15.04 or newer. But it doesn't work well in 12.04/14.04 and OpenWRT.

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Boris van Galvin wrote 10/18/2017 at 04:23

Wish you could do the same for a parallel port. :)
My CNC machine relies on 2 parallel ports and its becoming increasingly hard to find boards that have them. I should really just bite the bullet and upgrade the whole system.

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Dmitry Shapovalov wrote 10/18/2017 at 04:44

Definitely, usb2lpt converters are exist. But they are not standard. If your software using default lpt io ports, it won`t work. So yea, upgrade might be the only one choice.

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Stm32multiserial

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