This repository contains documentation and hardware resources for the BIGTREETECH CB1 single-board computer. It does not include executable software but provides comprehensive setup instructions for two system images: a Klipper-based 3D printing firmware and a minimal Armbian Linux system. The documentation covers WiFi configuration, hardware overlays (e.g., WS2812 LED, TFT35 display, MCP2515 CAN bus), eMMC flashing procedures, and detailed GPIO pinout mappings. The repository serves as a reference guide for hardware configuration and system initialization rather than a deployable application.