30 Nov
2022
30 Nov
'22
5:10 p.m.
On Nov 30, 2022, at 7:43 PM, Chuck Guzis via cctalk
<cctalk(a)classiccmp.org> wrote:
On 11/30/22 14:45, Eric Moore via cctalk wrote:
5V tolerant does not mean 5V compatible. I have right now some 5V devices I want to
control, and it's not exactly clear whether a 3.3V device will drive outputs high
enough to reliably make 5V devices see them as high. Arduinos can be had in actual 5V
models (5V power, standard 5V logic levels in and out). Not the fast ARM ones but for
many purposes good enough.
paul
I have a kennedy 9100 with an unformatted pertec
interface that I would
love to use for imaging tapes from my AS/400
It seems like strapping a logic analyzer to the read connector, and an
arduino on the command connector, may be fairly easily done? Has anyone
done that?
I have to confess that I've never understood the Arduino thing. It
seems to be limiting the functionality of an MCU in the name of convenience.
An inexpensive STM32F4 or F7 MCU can have, depending on the package,
over 100 5V tolerant GPIOs, ...