OpenPelta

Open-source replacement for ASUS Armoury Crate Gear targeting the ROG Pelta headset. Cross-platform (Windows, Linux). Built with Tauri + Rust + Svelte.

Status: pre-alpha — protocol reversing in progress. See docs/protocol.md.

Why

Armoury Crate Gear is heavy, unstable, and bloated. The Pelta deserves better:

• EQ + presets without 1 GB of ASUS bloat
• RGB control that doesn't fight with Aura
• Battery, sidetone, mic-mute, sleep timer
• Works on Linux (Armoury Crate doesn't)

Features (planned v1)

• Parametric EQ + FPS / Music / Cinema / Voice presets
• Virtual surround (HeSuVi on Win, EasyEffects convolver on Linux)
• RGB modes (Static, Breathing, Wave, Rainbow)
• Battery / sidetone / mic-mute / sleep timer
• Profiles + system tray + global hotkeys (Ctrl+Alt+1..9)
• Firmware update (opt-in, behind feature flag — high brick risk)

Status

Phase 0 (USB HID reversing) is the blocker. Without it, the device control layer is stubs.

If you can run Wireshark + USBPcap on Windows with Armoury Crate installed, please:

1. Run scripts/capture-windows.ps1 as Administrator.
2. Open an Issue with the resulting .pcap files attached (or tshark -r file.pcap -V > dump.txt).

Build

Requires: Rust stable, Node 20+, pnpm 9+. Linux also: webkit2gtk-4.1, librsvg2-dev, libudev-dev.

pnpm install
pnpm tauri dev      # dev
pnpm tauri build    # release

Architecture

Frontend (Svelte + Tauri webview)
        ▼ IPC
Backend (Rust)
  ├─ hid/        — hidapi-rs, raw protocol
  ├─ audio/      — Equalizer APO (Win) / EasyEffects (Linux) config writer
  ├─ rgb/        — effect state machine
  ├─ profiles/   — TOML store at ~/.config/openpelta/profiles.toml
  ├─ firmware/   — OTA (feature-gated)
  ├─ tray.rs     — system tray
  └─ hotkeys.rs  — global-hotkey

License

GPL-3.0 — same spirit as OpenRGB. Forks must publish reversing work back to the community.

Credits

Inspired by OpenRGB, HeadsetControl, asusctl, G-Helper.