On 3/23/2019 10:07 AM, Mike Stein wrote:
As to RS-232, it can provide TTL or 0-3.3V
'pseudo-RS-232' which usually works in my experience, but if you need
'true' RS-232 there are tiny TTL<>RS-232 adapters on eBay for < $2.00
But $80 shipping over night to canada with my luck.
I believe Rich Cini built one; maybe he can add
Australia is a good ways away from here.
The link is here for the micro controller and PCB.
It is a good deal if you have the other parts,
but I am looking for a older terminal with a
real keyboard and screen. The first computer
I used had the TTY I/O and I liked that keyboard feel.