desk2ha-agent 0.4.1

Multi-vendor desktop telemetry agent for Home Assistant

Desk2HA Agent

Multi-vendor desktop telemetry agent for Home Assistant.

Collects hardware metrics, peripheral status, and display settings from Windows, Linux, and macOS — and exposes them via HTTP and MQTT for the Desk2HA HA integration.

Features

• Cross-platform: Windows, Linux, macOS
• 3-tier collector model: Platform (OS) → Generic (DDC/CI, HID, BLE, Bluetooth, UVC) → Vendor (Dell, HP, Lenovo, Logitech, Corsair, SteelSeries, Razer)
• Display control: Brightness, contrast, volume, input source, KVM switch, PBP mode via DDC/CI
• Webcam control: Brightness, contrast, saturation, white balance, focus, zoom, pan/tilt via UVC
• Litra control: Power, brightness, color temperature for Logitech Litra Glow/Beam
• Wireless receivers: Dell Universal, Logitech Bolt/Unifying/Lightspeed, Jabra Link, Corsair Slipstream, Razer HyperSpeed
• Dual transport: HTTP API (OpenAPI v2.0.0) + MQTT with HA Discovery
• Auto-discovery: Zeroconf/mDNS (_desk2ha._tcp.local.)
• Self-update: Version check via GitHub Releases + pip upgrade
• Elevated helper: Separate process for admin-only metrics (Dell DCM WMI)
• Vendor images: Tier 1 generic + Tier 2 vendor-specific SVG device silhouettes
• System tray: Windows tray icon with status menu

Collectors

Tier	Collector	Metrics
Platform	Windows (WMI + psutil)	CPU, RAM, disk, battery, network, GPU, OS info
Platform	Linux (sysfs + psutil)	Same as above
Platform	macOS (IOKit + psutil)	Same as above
Generic	DDC/CI	Monitor brightness, contrast, volume, input, power, KVM, PBP
Generic	UVC Webcam	Brightness, contrast, saturation, white balance, focus, zoom, pan/tilt, resolution
Generic	USB PD	Charger connected, voltage, charging state
Generic	HeadsetControl	Headset battery, sidetone, LED, chatmix
Generic	HID Battery	USB peripheral battery levels
Generic	Bluetooth Peripheral	Paired BLE + Classic devices, GATT battery levels, device type classification
Generic	Network	WiFi RSSI/signal/SSID, Ethernet speed
Generic	USB Devices	Connected peripherals with VID/PID and friendly names
Generic	Wireless Receiver	Dell Universal, Logitech Bolt/Unifying, Jabra Link, paired device count
Vendor	Dell Command Monitor	CPU/GPU/SSD/skin thermals, fan speeds, AC adapter wattage (via elevated helper)
Vendor	HP WMI	BIOS settings, thermal profile (Windows)
Vendor	Lenovo WMI	Thermal mode, battery thresholds (Windows + Linux sysfs)
Vendor	Logitech Litra	Power, brightness (20-250 lm), color temp (2700-6500K)
Vendor	Corsair iCUE	HS80, Void, K70, K100, Dark Core detection
Vendor	SteelSeries	Arctis Nova 7/Pro, Rival, Aerox, Apex detection
Vendor	Razer	DeathAdder, Viper, Huntsman, BlackWidow, Kraken detection

Installation

pip install desk2ha-agent

# Windows extras (WMI, tray icon):
pip install desk2ha-agent[windows]

Quick Start

1. Create a config file (desk2ha-agent.toml):

[http]
enabled = true
bind = "0.0.0.0"
port = 9693
auth_token = "YOUR_RANDOM_TOKEN"

2. Run the agent:

desk2ha-agent --config desk2ha-agent.toml

3. In Home Assistant, add the Desk2HA integration and point it to http://<agent-ip>:9693.

Elevated Helper

Some metrics (e.g. Dell Command Monitor WMI) require admin privileges. The elevated helper runs as a separate process with admin rights and serves metrics via localhost HTTP:

# Start manually:
desk2ha-helper --port 9694

# Or install as Windows service (run as Administrator):
powershell -File scripts/install-helper-service.ps1

The agent automatically queries the helper at http://127.0.0.1:9694 if it's running. If not, DCM metrics are simply skipped.

Configuration

See examples/full-config.toml for all options.

Section	Key Options
[http]	bind, port, auth_token
[mqtt]	broker, port, username, password_env, base_topic
[collectors]	disabled, intervals (per-collector poll rate)
[logging]	level (DEBUG/INFO/WARNING)

API Endpoints

Method	Path	Auth	Description
GET	/v1/health	No	Health check
GET	/v1/info	Yes	Device identity + collector status
GET	/v1/metrics	Yes	All collected metrics
GET	/v1/image/{device_key}	Yes	Device product image (SVG)
GET	/v1/commands	Yes	List available commands
POST	/v1/commands	Yes	Execute a command (e.g. set brightness)
GET	/v1/update/check	Yes	Check for new agent release
POST	/v1/update/install	Yes	Install agent update

Recommended Vendor Software

The agent works out of the box with basic metrics via standard OS APIs. For full telemetry (detailed thermals, fan speeds, battery health, thermal profile control), install the vendor-specific software for your hardware:

Dell

Software	What it unlocks	Download
Dell Command | Monitor	CPU/GPU/SSD/skin thermals, fan RPM, AC adapter wattage, thermal profile control. Requires the elevated helper for WMI access.	Dell Support
Dell Peripheral Manager	Webcam settings, keyboard backlight, mouse DPI for Dell peripherals	Dell Support

HP

Software	What it unlocks	Download
HP System Event Utility	BIOS settings, thermal profile, fan control	HP Support (search your model)
HP Notifications	Battery health, power delivery info	Included with HP Support Assistant

Lenovo

Software	What it unlocks	Download
Lenovo Vantage	Thermal mode, battery thresholds, keyboard backlight	Microsoft Store
Lenovo System Interface Foundation	WMI access for BIOS settings, fan speed	Lenovo Support

Logitech

Software	What it unlocks	Notes
Logitech Litra Glow/Beam	Power, brightness, color temperature control via HID	No extra software needed — agent communicates directly via USB HID. Close G HUB if it blocks the HID interface.

Linux (ThinkPad)

Module	What it unlocks	How to enable
thinkpad_acpi	Fan speed, thermal mode	Usually auto-loaded. Check: lsmod | grep thinkpad
ideapad_acpi	Performance mode (IdeaPad/Legion)	Usually auto-loaded. Check: lsmod | grep ideapad

Cross-Platform

Software	What it unlocks	Download
HeadsetControl	Headset battery, sidetone, LED, chatmix (SteelSeries, Corsair, Logitech, HyperX)	GitHub
OpenCV (opencv-python)	UVC webcam controls (brightness, contrast, white balance, focus, zoom)	pip install opencv-python

Note: All vendor software is optional. The agent gracefully skips collectors when the required software is not installed. You can check which collectors are active via GET /v1/info.

Windows Autostart

The agent needs an interactive desktop session for DDC/CI monitor control. Use the Startup folder (not a Windows Service):

%APPDATA%\Microsoft\Windows\Start Menu\Programs\Startup\Desk2HA Agent.vbs

The elevated helper can run as a Windows Service (Session 0 is fine for WMI):

# Run as Administrator:
powershell -File scripts/install-helper-service.ps1

Known Issues

Issue	Workaround	Status
DDC/CI not working as Windows Service	DDC/CI requires an interactive desktop session (Session 1+). Use Startup folder autostart, not NSSM/Windows Service.	By design (Windows limitation)
Dell Command Monitor needs admin	DCM WMI namespace requires elevated privileges. Use the elevated helper service.	Solved (v0.3.0+)
Logitech Litra G HUB conflict	If Logitech G HUB is running, it may hold the HID interface and prevent the agent from reading Litra status.	Close G HUB or disable Litra in G HUB

Upcoming Features

• Prometheus endpoint: /metrics in Prometheus scrape format
• More vendor battery support: Corsair, SteelSeries, Razer battery levels via HID
• macOS Bluetooth: CoreBluetooth support for paired device enumeration

License

Apache-2.0