Last Updated or created 2024-03-05

Using a LilyGo TTGO ESP32 VGA32, I’m connecting my breadboard 6502 to a serial vga terminal with its own keyboard.

Due to a lot of moving around, new places, new homes I dumped a lot of terminal hardware.
Also are those old terminals too big and use too much power.

I’m going to use this DIY screen.
https://www.henriaanstoot.nl/2021/03/24/broken-or-slow-laptop-screen-still-works/

Using the Libraries from Fabrizio Di Vittorio, named FabGL, you can transform this device into a dumb terminal, game device, VIC-20, a 8086 pc and more.
There are even some projects to turn this into a C64.

But the main thing I want to do: A simple terminal.
(I probably revisit the other options again at a later stage)

My Wozmon bios has bare minimum support for serial communication, so i have to do some bitbanging.
(6502 is using a 6551 ACIA)

Sound from the ESP32 VGA board.

• Chipset: TTGO Micro32 (ESP32 240Mhz dual core processor)
• Flash memory: 4MB
• SRAM: 520KB
• Built-in Bluetooth
• Built-in Wi-Fi
• Supply voltage: 3.3V DC or 5V DC
• GPIO voltage: 3.3V*
• USB to serial converter: CP2102 or CH9102F (drivers)
• VGA connection
• PS/2: keyboard connection
• PS/2: mouse connection
• Built-in Li-ion/Li-Po battery charging circuit: TP4054 chip can charge up to 500mA