CyberFidget Emulator

A VS Code extension that emulates the CyberFidget hardware — a 128x64 OLED handheld with six buttons and an analog slider — directly in the sidebar.

Build any app from your CyberFidget firmware repository to WebAssembly and run it without flashing the device.

Features

• 128x64 OLED display rendered to a pixel-accurate canvas
• Six on-screen buttons with keyboard shortcuts (Q/E, A/D, Z/C)
• Analog slider input
• One-click WASM build of any app from the firmware's CMakeLists.txt
• Live build console with auto-reload on success

Requirements

This extension only emulates apps — you need a CyberFidget firmware checkout to build from.

• A clone of the CyberFidget firmware repo (or any compatible firmware with a wasm/ directory)
• Emscripten SDK installed and available on your PATH
• CMake 3.10+

Usage

1. Open the CyberFidget Emulator panel from the activity bar.
2. Click Change and select your firmware folder (the repo root, not the wasm/ subdirectory).
3. Pick an app from the dropdown and click ▶ Build.
4. On success, the emulator loads automatically. Use the on-screen buttons or keyboard shortcuts to interact.

Controls

The slider beneath the screen maps to the device's analog input (0–4095). You can also snap the slider to ten preset positions with the number row: 1 is fully left, 0 is fully right, and 2–9 step evenly between.

Troubleshooting

Build fails with "emcc: command not found" — Make sure you've sourced the Emscripten environment. Either run source /path/to/emsdk/emsdk_env.sh before launching VS Code, or add the Emscripten paths to your shell profile.

No apps in the dropdown — The extension scans wasm/CMakeLists.txt for WASM_APP STREQUAL "<name>" blocks. Make sure your firmware checkout is up to date and the file exists.

License

MIT