Home | ESP32 Emu Turbo

SNES-first retro game emulation on ESP32-S3 with SIMD/PIE and 8MB Octal PSRAM.

Rechargeable LiPo battery with USB-C charging and a 3.95" 320x480 parallel TFT display.

Fully open source hardware and software. Schematics, PCB design, firmware and 3D models included.

Interactive tools

Generated from the live design files on every change — never hand-maintained.

Interactive board viewer: components by side and layer, per-pin “where does this go”, full net membership and trace paths.

Visual assembly aid — click a BOM row and the part lights up on the board. Generated from the live .kicad_pcb.

Photorealistic raytraced renders of the PCBA and the OpenSCAD enclosure, straight from the design files.

Schematics, PCB layout, GPIO mapping and the full component BOM with LCSC part numbers.

124-test DFM suite, DFA, JLCPCB rules, KiBot CI — every commit is checked before it can ship.

Honest post-mortems of real fabrication bugs — including the v4.3.1 systemic rotation error — and what now guards against each.

Simulation-first hardware debugging: SPICE models and analyses standing in for the bench instruments we do not have.

ESP-IDF v5.x firmware: display driver, controls, SD card ROM loading and the emulator bring-up plan.

The Claude Code agent/skill architecture and the KiCad + JLCPCB ecosystem analysis behind the pipeline.