Documentation

Official docs for the One Dollar Computer (onedollarcomputer.com). Firmware uses board pins 0–19 only — never MCU pad names.

Specification

Platform spec for v1.004 R2 (RISC-V, pins 0–19, Simple Rust): Specification · odc.rs/specification · v1.004.yaml.

Pinout

Canonical board map: board.yaml (v1.004 R2). LED = 19. Pin 13 is the bootloader button only (press to Upload) — not beginner user input. See BUTTON.md.

One Dollar Computer v1.004 R2 pinout — board pins 0–19
v1.004 R2 pinout — SVG · PDF

Virtual board (emulator)

Run RV32EC firmware in the browser before flashing hardware — model 1.004 R2, same .bin as the editor compile.

Open virtual board → (local: no sign-in on localhost)

Also useful