Hi,
What you propose is almost exactly what I have under development.
I Tweeted it a few months ago, see
https://twitter.com/thehighnibble/status/1110861587751927811?s=21
The only differences are
- I’m using an ESP32 Wroom module on a custom designed board, in this example in the RC2014 form factor, but not the TTGO.
- I am using FabGL but have written a lot of additional code to try to faithfully simulate an actual VT100, config menus and all, with a speaker for the bell too. I’ve also added additional authentic fonts from the VT52, VT100, and others. I support 132 column mode and can produce SVGA output at 800x600 in addition to VGA resolutions.
So it connects to any VGA monitor via DB15 and requires a PS/2 keyboard, although I’m intending to add support for a USB keyboard if I can integrate a new module I’m yet to test.
I intend to also make a stand alone module, ie. not in RC2014 form factor.
The only reason why it’s not ready yet is that I’ve been really busy lately finishing my other project, the IMSAI 8080esp replica see
https://thehighnibble.com and getting into the hands of the retro computing community.
I’ll soon get back to what I’ve been calling the VT132, you know VT100 + ESP32 = VT132