ESPion V1
V1 Drawing Packet
Early prototype drawings done using Onshape for the ESPion V1 enclosure, showing the ESP32/e-ink housing, keyboard assembly, battery housing, and full exploded assembly.
Overview
ESPion V1 is a compact ESP32-based e-ink note and utility device built as a hands-on embedded systems project. The design combines an Adafruit ESP32 Feather V2, a 2.13" e-ink FeatherWing, an M5Stack CardKB keyboard, local SD-backed storage, and a custom 3D-printable PETG enclosure.
The purpose of this first revision is to create a stable hardware and firmware foundation while developing practical experience in embedded C/C++, hardware integration, CAD, enclosure design, and iterative prototyping.
V1 Scope
The first version serves as a proof of concept device and is scoped as such. Version One is set to be a small keyboard-driven note and utility device rather than a full cyberdeck or wireless multitool. Core goals include reliable display output, keyboard input, SD card storage, battery-powered operation, and a usable enclosure. Should Version One be sucessful the scope will expand upon the inital framework.
Mechanical Prototyping
The current V1 work focuses on packaging the core electronics into a compact handheld form. The enclosure drawings define the display and ESP32 housing, keyboard stack-up, battery compartment, wire-routing paths, mounting posts, friction-fit joinery, and access for the USB-C interface.
These drawings represent early prototype documentation and are expected to evolve after print testing, tolerance checks, and hardware fitment validation.
Gallery
Next Steps
- Print and test-fit the V1 housing components.
- Validate ESP32, e-ink display, keyboard, and battery clearances.
- Revise initial tolerances and joinery based on physical fitment, then expand the enclosure to include additional components such as an inline power switch.
- Begin firmware bring-up for display output, keyboard input, and SD storage.
- Develop a basic menu system and short-note save/load functionality.