pd200x

Rust driver for the Maono PD200X USB microphone.

Controls microphone gain, mute, EQ, noise cancellation, compressor, limiter, and RGB lighting over USB HID - no official SDK required.

Installation

[dependencies]
pd200x = "0.2"

Quick start

use pd200x::PD200X;

fn main() -> pd200x::Result<()> {
    let mic = PD200X::open()?;

    mic.set_mic_gain(80)?;
    mic.set_mic_monitor(true)?;
    mic.set_rgb_color(pd200x::RgbColor::Blue)?;

    Ok(())
}

Linux USB permissions

Install the udev rule so the device is accessible without root:

sudo cp 99-pd200x.rules /etc/udev/rules.d/
sudo udevadm control --reload-rules && sudo udevadm trigger

Then unplug and replug the microphone. The rule grants access to the logged-in user automatically via TAG+="uaccess".

API overview

// Microphone
mic.set_mute(true)?;
mic.set_mic_gain(80)?;          // 0–100
mic.set_mic_monitor(true)?;     // routes mic to headphone output

// Headphone & noise
mic.set_headphone_volume(70)?;  // 0–100
mic.set_noise_cancellation(true)?;
mic.set_nc_strength(20)?;       // 0–40

// EQ - named presets (reverse-engineered from MAONO Link)
use pd200x::presets;
mic.set_eq_preset(&presets::BRIGHT)?;
mic.set_eq_preset(&presets::DEEP)?;
// available: FLAT, LOW_CUT, MID_BOOST, LOW_CUT_MID_BOOST,
//            BRIGHT, NATURAL, CLASSIC, DEEP

// EQ - custom (full 7-band parametric control)
use pd200x::{EqBand, EqBandParams, FilterType};
mic.set_eq_preset(&[
    (EqBand::Band1, EqBandParams { enabled: true, filter_type: FilterType::Peaking,
                                   frequency: 120, gain_db: -3.0, q: 1.5 }),
    (EqBand::Hpf,   EqBandParams { enabled: true, filter_type: FilterType::HighPass,
                                   frequency: 80,  gain_db:  0.0, q: 1.0 }),
])?;

// EQ - single band
mic.set_eq_band(EqBand::Band1, &EqBandParams {
    enabled: true,
    filter_type: FilterType::Peaking,
    frequency: 120,
    gain_db: -3.0,
    q: 1.5,
})?;
mic.set_hpf(true, 80)?;         // high-pass at 80 Hz
mic.set_lpf(false, 22000)?;

// Dynamics
mic.set_compressor(true, 1800)?;
mic.set_limiter(true, 1900)?;

// RGB lighting
use pd200x::RgbColor;
mic.set_rgb_enabled(true)?;
mic.set_rgb_brightness(80)?;    // 0–100
mic.set_rgb_color(RgbColor::Cyan)?;

Supported features

Feature	Set	Get
Mute	✅	✅
Mic gain	✅	✅
Mic monitor	✅	✅
Headphone volume	✅	✅
Noise gate	✅	✅
Noise cancellation	✅	✅
NC strength	✅	✅
EQ presets (×8)	✅	-
EQ bands (×5)	✅	-
HPF / LPF	✅	-
Compressor	✅	-
Limiter	✅	-
RGB enable	✅	-
RGB brightness	✅	-
RGB color	✅	-
Lighting linkage	✅	-

License

see LICENSE.