Thermalright Trofeo Vision 360 ARGB - LCD Technical Reference

Document Version: 1.0 Date: January 2026 Source: Reverse-engineered from TRCC.exe v2.1.0.0 (decompiled) + web research

Product Overview
USB Device Identification
USB HID Protocol
Image Transfer Protocol
Color Format & Encoding
Display Modes
LED Control Protocol
Theme System
Existing Linux Projects
Implementation Notes

Product Overview

Hardware Specifications

Specification	Value
Product	Thermalright Trofeo Vision 360 ARGB
Display Type	IPS LCD
Display Size	6.86 inches (diagonal)
Resolution	1280 × 480 pixels
Aspect Ratio	8:3 (ultra-wide)
Color Depth	16-bit (RGB565) or JPEG compressed
Connection	USB 2.0 (9-pin internal header) + USB Type-C data
Pump Speed	Up to 6400 RPM
ARGB	3-PIN 5V connector

Display Characteristics

Persistence: Display does NOT retain images - requires continuous streaming
Refresh Rate: ~64 Hz (15.625ms per frame based on code analysis)
Orientation: Supports 0°, 90°, 180°, 270° rotation
Brightness: Software controllable

Official Resources

USB Device Identification

Thermalright USB HID Devices

The TRCC software supports multiple Thermalright products with different USB identifiers:

Device ID	VID (Hex)	VID (Dec)	PID (Hex)	PID (Dec)	Packet Size	Description
Device 1	0x0416	1046	0x8001	32769	64 bytes	Small digital display (PA120 Digital, etc.)
Device 2	0x0416	1046	0x5302	21250	512 bytes	Trofeo Vision LCD (primary)
Device 3	0x0418	1048	0x5303	21251	64 bytes	Secondary controller
Device 4	0x0418	1048	0x5304	21252	512 bytes	Extended LCD support

Source: UCDevice.cs:166-201

Vendor Information

VID 0x0416 is registered to Winbond Electronics Corp. in the USB-IF database
Device Hunt - VID 0416

Linux Device Detection

# Check if device is connected
lsusb | grep "0416:5302"

# Detailed device info
lsusb -d 0416:5302 -v

# Check HID interface
ls -la /dev/hidraw*

USB HID Protocol

Packet Structure Overview

All communication uses USB HID reports with the following general structure:

┌─────────────────────────────────────────────────────────────┐
│ Offset │ Size │ Description                                 │
├────────┼──────┼─────────────────────────────────────────────┤
│ 0-3    │ 4    │ Header bytes (magic signature)              │
│ 4      │ 1    │ Command type                                │
│ 5-7    │ 3    │ Reserved / command-specific                 │
│ 8-11   │ 4    │ Parameter 1 (e.g., width/height)            │
│ 12-15  │ 4    │ Parameter 2 (e.g., data length)             │
│ 16-19  │ 4    │ Parameter 3 (command-specific)              │
│ 20+    │ var  │ Payload data                                │
└─────────────────────────────────────────────────────────────┘

Header Signatures

Two header patterns are used depending on device/command:

Header Type	Bytes (Hex)	Bytes (Dec)	Usage
Primary	`DA DB DC DD`	218 219 220 221	LCD image data
Alternative	`12 34 56 78`	18 52 86 120	Some control commands
Legacy	`DC DD`	220 221	Older devices (64-byte)

Source: FormCZTV.cs:172-173, FormCZTV.cs:2790-2791

Command Types

Command ID	Hex	Name	Description
0x00	0	ONOFF	Power on/off control
0x01	1	STATE	Set device state
0x02	2	GET_STATE	Query device state
0x04	4	AUDIO	Audio control features
0x05	5	MOTOR	Pump/motor control
0x06	6	FAN	Fan speed control
0x10	16	LED	LED lighting control
0x30	48	LCD	LCD display data
0x68	104	LEDMS	LED millisecond timing

Source: UCDevice.cs, FormKVMALED6.cs:23-32

Image Transfer Protocol

1280×480 LCD Image Packet Structure

For the Trofeo Vision display, image data is sent with this 20-byte header:

Offset  Size  Value           Description
──────────────────────────────────────────────────────────
0       1     0xDA            Header byte 0
1       1     0xDB            Header byte 1
2       1     0xDC            Header byte 2 (220)
3       1     0xDD            Header byte 3 (221)
4       1     0x02            Command: Image data
5       1     0x00            Reserved
6       1     0x00            Reserved
7       1     0x00            Reserved
8       1     0x00            Width low byte (1280 & 0xFF = 0x00)
9       1     0x05            Width high byte (1280 >> 8 = 0x05)
10      1     0xE0            Height low byte (480 & 0xFF = 0xE0)
11      1     0x01            Height high byte (480 >> 8 = 0x01)
12      1     0x02            Compression type (0x02 = JPEG)
13      1     0x00            Reserved
14      1     0x00            Reserved
15      1     0x00            Reserved
16      4     [length]        Image data length (little-endian uint32)
20+     var   [jpeg_data]     JPEG image bytes

Source: FormCZTV.cs:3558-3581

Supported Resolutions

The TRCC software supports these LCD resolutions:

Resolution	Width×Height	Aspect	Notes
240×240	Square	1:1	Small square displays
320×320	Square	1:1
360×360	Square	1:1
480×480	Square	1:1
320×240	Landscape	4:3
640×480	Landscape	4:3	VGA
800×480	Landscape	5:3	WVGA
854×480	Landscape	16:9	FWVGA
960×540	Landscape	16:9	qHD
960×320	Ultra-wide	3:1
1280×480	Ultra-wide	8:3	Trofeo Vision
1600×720	Ultra-wide	20:9
1920×462	Bar	~4:1

Source: FormCZTV.cs:3558-3679 (multiple resolution handlers)

Transfer Modes

Mode	Compression	Packet Content	Use Case
Mode 1	RGB565 raw	Uncompressed pixels	Direct framebuffer
Mode 2	JPEG	Compressed image	Network/efficient transfer

Source: FormCZTV.cs:1957-1960

JPEG Compression Settings

// Default JPEG quality
public int myDeviceJpgYSL = 95;  // 95% quality

// Compression function signature
private static byte[] CompressionImage(Image image, long quality)

Source: FormCZTV.cs:34, FormCZTV.cs:2471-2480

Color Format & Encoding

RGB565 Format (16-bit color)

When sending raw pixel data (Mode 1), images are converted to RGB565:

Bit layout (16 bits per pixel):
┌─────────────────────────────────────┐
│ 15 14 13 12 11 │ 10 9 8 7 6 5 │ 4 3 2 1 0 │
│     R (5 bits) │   G (6 bits) │ B (5 bits)│
└─────────────────────────────────────┘

Memory layout (little-endian):
Byte 0: GGGBBBBB  (G lower 3 bits + B 5 bits)
Byte 1: RRRRRGGG  (R 5 bits + G upper 3 bits)

Conversion Algorithm

// From 32-bit ARGB to RGB565 (little-endian)
byte R = source[offset + 2];  // Red component
byte G = source[offset + 1];  // Green component
byte B = source[offset + 0];  // Blue component

// Standard RGB565 encoding:
rgb565[0] = (byte)((G << 3) & 0xE0) | (byte)(B >> 3);
rgb565[1] = (byte)(R & 0xF8) | (byte)(G >> 5);

// Some devices use big-endian (bytes swapped):
rgb565[0] = (byte)(R & 0xF8) | (byte)(G >> 5);
rgb565[1] = (byte)((G << 3) & 0xE0) | (byte)(B >> 3);

Source: FormCZTV.cs:3791-3816

Raw Frame Size Calculation

1280 × 480 × 2 bytes/pixel = 1,228,800 bytes (~1.17 MB per frame)

Display Modes

Theme Display Modes

Mode ID	Name (Chinese)	Name (English)	Description
0	背景显示	Background Display	Static image or GIF animation
1	投屏显示	Screen Projection	Mirror PC screen region to LCD
2	视频播放器	Video Player	Play video files
3	系统信息	System Info	Real-time hardware monitoring
4	蒙版显示	Mask/Overlay	Transparency effects

Source: FormCZTV.cs mode handling

System Information Display

Available metrics for on-screen display:

Category	Metrics
CPU	Temperature, Usage %, Frequency, Power
GPU	Temperature, Usage %, Memory, Frequency
Memory	Usage %, Used/Total
Storage	Disk activity, Usage
Network	Upload/Download speed
Custom	User-defined text overlays

LED Control Protocol

LED Packet Structure

Offset  Size  Description
─────────────────────────────
0       1     Header (0xDC = 220)
1       1     Command (0x10 = LED)
2       1     Mode
3       1     Brightness (0-100)
4       1     Speed (animation speed)
5-7     3     RGB color 1
8-10    3     RGB color 2 (for dual-color modes)
11+     var   Per-channel settings

LED Modes

Mode	Name	Description
1	Static	Solid color
2	Breathing	Fade in/out
3	Colorful	Cycle through colors
4	Rainbow	Rainbow wave effect

LED Channel Control

Up to 10 LED channels supported:

Per-channel on/off
Per-channel mode selection
Master brightness control
Animation speed control

Source: FormKVMALED6.cs:38-80

Theme System

Theme File Structure

Themes are stored in: Data\USBLCD\Theme\{resolution}\{theme_name}\

File	Purpose
`Theme.zt`	Theme configuration (binary)
`Theme.png`	Preview thumbnail
`config1.dc`	Device configuration
`Color.dc`	Color settings
`*.gif`	Animation frames

Web Theme Download

Themes can be downloaded from Thermalright's CDN:

Base URL: http://www.czhorde.com/tr/
Pattern:  bj{resolution}/{theme_id}/

Example:  http://www.czhorde.com/tr/bj1280480/theme001/

Source: FormCZTV.cs:446, UCThemeWeb.cs

GIF Animation Support

Maximum frames: 20,000
Frame timing: Stored in gifDelays[] array
Loop support: Continuous or single-play

Existing Linux Projects

Reference Implementations

Project	URL	Target Device	Status
digital_thermal_right_lcd	GitHub	PA120 Digital (0x8001)	Active
Peerless_assassin_and_CLI_UI	GitHub	Peerless Assassin 120 D	Active
liquidctl	GitHub	Various AIOs	No Thermalright support

Key Differences from Trofeo Vision

Feature	PA120 Digital	Trofeo Vision
PID	0x8001	0x5302
Packet Size	64 bytes	512 bytes
Display	Segment/digit	Full LCD
Data Format	Simple values	JPEG/RGB565 images

Implementation Notes

USB HID Access on Linux

# Install hidapi
sudo apt install libhidapi-hidraw0 libhidapi-libusb0

# Create udev rule for unprivileged access
# /etc/udev/rules.d/99-thermalright-lcd.rules
SUBSYSTEM=="usb", ATTR{idVendor}=="0416", ATTR{idProduct}=="5302", MODE="0666"
SUBSYSTEM=="hidraw", ATTRS{idVendor}=="0416", ATTRS{idProduct}=="5302", MODE="0666"

# Reload udev rules
sudo udevadm control --reload-rules
sudo udevadm trigger

Recommended Libraries

Language	Library	Notes
.NET	HidSharp	Cross-platform, well-maintained
.NET	HidApi.Net	Wrapper around hidapi
Python	hidapi	Used by existing projects
Rust	hidapi	Rust bindings for hidapi
C/C++	libhidapi	Native library

Performance Considerations

Frame Rate: Target 30-60 FPS for smooth animation
JPEG Encoding: Use hardware acceleration if available
USB Latency: HID reports have ~1ms latency minimum
Buffer Size: 512-byte HID reports, may need multiple reports per frame

Packet Fragmentation

For large images (JPEG > 512 bytes), data must be split across multiple HID reports:

Report 1: [Header 20 bytes] + [JPEG bytes 0-491]
Report 2: [JPEG bytes 492-1003]
Report 3: [JPEG bytes 1004-1515]
...
Report N: [Remaining JPEG bytes] + [Padding]

Appendix: Code References

Key Source Files (from TRCC decompilation)

File	Lines	Purpose
`FormCZTV.cs`	~7,000	Main LCD control, theme management
`UCDevice.cs`	~1,400	USB HID communication layer
`FormKVMALED6.cs`	~1,900	LED controller
`UCScreenImage.cs`	~800	Display rendering
`UCSystemInfo.cs`	~600	Hardware monitoring

Protocol Constants

// Headers
const byte USB_PACKED_Head = 220;      // 0xDC
const byte USB_PACKED_Head_NEW = 221;  // 0xDD

// Commands
const byte USB_PACKED_ONOFF = 0;
const byte USB_PACKED_STATE = 1;
const byte USB_PACKED_GET_STATE = 2;
const byte USB_PACKED_AUDIO = 4;
const byte USB_PACKED_MOTOR = 5;
const byte USB_PACKED_FAN = 6;
const byte USB_PACKED_LED = 16;        // 0x10
const byte USB_PACKED_LCD = 48;        // 0x30
const byte USB_PACKED_LEDMS = 104;     // 0x68

Document History

Version	Date	Changes
1.0	January 2026	Initial reverse-engineering documentation

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