18 Jun
2013
18 Jun
'13
1:47 p.m.
On Tue, Jun 18, 2013 at 07:48:35PM +0100, Tony Duell wrote:
[...]
Thers's a nice little project for somebody (given
that USB is claimed to be
simple). Make a device with a USB port on one side (and which behaves like a
normal USB-RS23s converter) and which will do the slower baud rates (it
needn't go above 9600), including 110 and 45.45 baud.
The software side is trivial :)
The Arduino Uno has actually replaced its FTDI USB-serial chip with a small AVR
microcontroller that does the same job. So it's just a case of grabbing the
source code, fixing any bugs related to very slow baud rates, and writing it to
a chip.
By far the hardest bit for me would be to design a suitable circuit and
assemble the components on a bit of stripboard. I'm not even sure where my
soldering iron is as I haven't used it in years...