Design Ideas

Goal

The goal is to create a portable, 8-bit computer from base components, that is at least as functional as an Alphasmart or Freewrite device, and preferrably, has functionality more similar to a Tandy WP-2. Would also be good if the device can improve on some of the design problems of those devices, such as having a positionable screen.

Architecture

Currently, the best looking architecture to build the computer around looks like the RC2014.

This will mean that the computer is a Z80 based system.

Operating System

Still looking into operating systems. Potential options include CP/M and CollapseOS, but definitely would prefer other options if they exist.

Serial Terminal

Originally was looking into epaper for a display, but am leaning against it due to issues with slow refresh rates. Instead, looking for LCDs that can be driven by an Arduino that might be able to serve as a full TTL terminal. If that fails, can also use a diy-VT100 for the display, and a USB Host or E1115 converter for keyboard input.

Case Inspiration

The final product will likely use a 3d printed case, potentially using a modified version of the HALGRID P-1 Raspberry Pi Laptop Computer Shell (itself, based on the GRID Compass).