I really liked the work that BenHeck did with his Arduino BASIC pocket computer, and wanted to create my own. After searching far and wide for the source code, I found that I wanted to build mine different. I wanted to use a character LCD display, but I also wanted to torture myself by creating a hand soldered matrix keyboard....
The computer features:
USB-C Arduino Nano: https://shorturl.at/nyDP3 Single lipo power converter board for 5V: https://shorturl.at/kwHM0 SSD1306 Character LCD: https://shorturl.at/pqMUV 2 pin Tactile switches, diodes, and solid copper bell wire for the keyboard matrix.