This is a modified Ben Eater 6502 Computer PCB board that I’ve been working on. It has a serial I/O port so that I can send and receive data to a display like my laptop, LCD, or CRT monitor. I used Grant Searle’s video and keyboard interface circuit and found a blog that helped with setting up the serial I/O using a 6551 ACIA chip. So far, all it is doing is running a version of Wozmon that I found on reddit, but I eventually want to port a BASIC interpreter just like the apple 1. See the links below for the sources I used.

Ben Eater 6502 videos:    • Build a 65c02-based computer from scr...  

Blog I used for adding serial to BE6502: https://mike42.me/blog/2021-07-adding...

Video and Keyboard interface: http://searle.x10host.com/MonitorKeyb...

Version of Wozmon I found on reddit: https://www.reddit.com/r/beneater/com...
https://github.com/kissmywhat/sd/blob...

Some resources for learning about NTSC and Composite video:    • Let's Learn: NTSC Part 1A (Basics)  
http://www.kolumbus.fi/pami1/video/pa...
https://sagargv.blogspot.com/2011/04/...

Here is a link to my github with the KiCAD schematics and AVR makefile: https://github.com/The-Invent0r/6502-...