[rescue] Anyone build this kit?

[Andy Wallis]

> On Nov 13, 2021, at 6:07 PM, Doug McIntyre <merlyn at geeks.org> wrote:
>
> o;?On Sat, Nov 13, 2021 at 05:49:22PM -0500, Andy Wallis wrote:
>> If you set the serial kit to RS232, nothing will come up. If I set the
>> option for TTL, you'll get different character glyphs based on if the
>> character set is set to UTF-8, ISO-8851, or IBM-437 encodings. It's
>> possible that I have a bad solder somewhere, but everything else comes up
>> fine.
>
>
> I've seen serial TTL levels be either 3.3V or 5.0V.
> Are you matching your TTL voltage levels correctly with your RS232 adapter?
>
> I have an RS232 adapter that jumpers for 3 settings, it even does 1.8V TTL,
> but I don't know what equipment that works with. I do have some gear that
> does 5V TTL, and some that are 3.3V TTL, so the jumpering comes in handy.
>
> It sounds a bit like like an undervoltage threshold garbage.

According to the original documentation, the serial is 3.3V TTL. I do have a
converter coming in tomorrow that will both 3.3V and 5V.
https://geoffg.net/terminal.html

This revision may be 5V, webll see what happens tomorrow when I get my
converter.