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ToT-3288A RK3288 4K Dual-Screen Android Smart Terminal Controller Board
The ToT-3288A is a full-featured Android smart terminal controller board powered by the Rockchip RK3288 quad-core Cortex-A17 processor. It supports Android 7.1 or Android 11, HDMI, LVDS and eDP display output, 4K multimedia playback, independent dual-screen display, seven USB ports, multiple serial interfaces, SD card expansion, Wi-Fi, Bluetooth, Ethernet and PCI-E 4G communication with compatible voice-call functionality.
Core Advantages
- Rockchip RK3288 quad-core Cortex-A17 processor
- Maximum CPU clock speed up to 1.8 GHz
- ARM Mali-T764 graphics processor
- Android 7.1 or Android 11 support
- HDMI, LVDS and eDP display output
- 4K multimedia decoding and output
- Independent dual-screen display support
- Seven USB 2.0 interfaces
- PCI-E 4G mobile network and calling support
- Android system customization and API support
Powerful Quad-Core Performance
The ToT-3288A uses the Rockchip RK3288 processor featuring four ARM Cortex-A17 CPU cores and a maximum clock speed of up to 1.8 GHz. It provides reliable performance for multimedia playback, interactive applications and intelligent terminals.
Android 7.1 and Android 11
The board supports Android 7.1 and Android 11 system configurations, providing flexible compatibility for existing commercial applications and newer Android terminal software.
Mali-T764 Graphics Processing
The integrated ARM Mali-T764 GPU provides efficient graphics rendering and multimedia acceleration for digital signage, video playback, user interfaces and interactive terminal systems.
Highly Integrated Hardware Platform
USB, HDMI, LVDS, eDP, Ethernet, Wi-Fi, Bluetooth, audio and storage functions are integrated on one board, helping simplify product design, reduce wiring and shorten terminal development time.
4K Ultra-HD Display Support
The ToT-3288A supports HDMI output at up to 4K × 2K at 60 Hz and multimedia decoding at resolutions up to 3840 × 2160, delivering detailed image quality for compatible commercial displays.
LVDS and eDP LCD Compatibility
LVDS and eDP interfaces support direct connection to compatible LCD panels with different sizes and resolutions, including customized bar-type and cropped display panels.
Independent Dual-Screen Display
Compatible HDMI, LVDS and eDP display combinations can show different content on two screens, supporting customer displays, information screens and multi-screen intelligent terminals.
Seven USB Interfaces
- 7 × USB 2.0 interfaces
- Five internal pin-header USB ports
- Two standard external USB ports
- USB storage and media import support
- Camera, scanner and peripheral support
Rich Serial and Control Interfaces
- 1 × TTL serial interface
- 2 × RS232 serial interfaces
- 1 × Bluetooth multiplexed serial interface
- 3 × GPIO interfaces
- 1 × ADC interface
Flexible Network Communication
The board supports 10/100 Mbps Ethernet, built-in Wi-Fi, Wi-Fi hotspot sharing and Bluetooth connectivity, providing stable wired and wireless communication for intelligent terminals.
PCI-E 4G Connectivity
A compatible PCI-E 4G module can provide mobile network access and voice-call functions, allowing terminals to operate in locations where wired Ethernet or Wi-Fi is unavailable.
Digital Signage Playback Functions
The platform supports landscape and portrait playback, split-screen video, scrolling subtitles, scheduled power control, USB data import and playlist management for advertising and information displays.
High-Power Stereo Audio
The integrated amplifier supports stereo left and right speaker output at up to 2 × 10 W with 8 Ω speakers or 2 × 20 W with 4 Ω speakers, subject to power and thermal conditions.
Android System Customization
Android system customization, hardware control APIs and reference code can be provided to support upper-layer APP development, peripheral integration and customized software deployment.
ToT-3288A 4K Dual-Screen Android Smart Terminal Board Interface Diagram
Core Configuration
| Model | ToT-3288A |
|---|---|
| CPU | Rockchip RK3288 quad-core processor with 4 × ARM Cortex-A17 cores |
| Maximum CPU Frequency | Up to 1.8 GHz |
| GPU | ARM Mali-T764 graphics processor |
| Operating System | Android 7.1 or Android 11.0 |
| Memory | 2 GB DDR3 standard memory |
| Storage | 16 GB standard onboard eMMC storage |
Display Interfaces
| HDMI Output | 1 × HDMI output supporting 1080p at 60 Hz and up to 4K × 2K at 60 Hz |
|---|---|
| LVDS Output | 1 × single-channel or dual-channel LVDS output capable of directly driving compatible 50 Hz or 60 Hz LCD panels |
| eDP Output | Supports direct connection to compatible eDP LCD panels with multiple resolutions |
| Maximum Decoding Resolution | Up to 3840 × 2160 |
| Dual-Screen Display | Supports compatible independent dual-screen display combinations |
| Custom LCD Support | Supports compatible standard LCD panels, bar displays and customized cropped screens |
Expansion Interfaces
| USB | 7 × USB 2.0 interfaces, including five internal pin-header interfaces and two standard USB ports |
|---|---|
| TTL Serial Port | 1 × TTL serial communication interface |
| RS232 Serial Ports | 2 × RS232 serial communication interfaces |
| Multiplexed Serial Port | 1 × serial interface multiplexed with the Bluetooth function |
| GPIO | 3 × GPIO interfaces for external signal input, output and device control |
| ADC | 1 × analog-to-digital input interface |
| Storage Card | Supports SD cards for media storage, data import and local system upgrades |
Network Support
| Wi-Fi | Built-in Wi-Fi with hotspot-sharing support |
|---|---|
| Bluetooth | Built-in Bluetooth 4.2 |
| Ethernet | Supports 10/100 Mbps Ethernet |
| Mobile Network | Supports compatible PCI-E 4G communication modules for mobile network access |
| Voice Calling | Supports compatible voice-call functions when used with a suitable 4G module and software configuration |
Audio Configuration
| Speaker Output | Stereo left and right channel speaker output |
|---|---|
| 8 Ω Speaker Output | Supports up to 2 × 10 W |
| 4 Ω Speaker Output | Supports up to 2 × 20 W |
| Headphone Output | 1 × headphone interface supporting compatible three-pole or four-pole plugs |
Digital Signage Functions
| Screen Orientation | Supports landscape and portrait playback |
|---|---|
| Split-Screen Playback | Supports compatible video and multimedia split-screen layouts |
| Scrolling Subtitles | Supports scrolling text and information display functions |
| Scheduled Operation | Supports scheduled power-on and power-off functions |
| USB Data Import | Supports local multimedia and playlist import via USB flash drive |
| Playlist Management | Supports compatible playlist creation and advertising content management software |
Software and Development
| Android Customization | Supports customized Android system functions according to project requirements |
|---|---|
| API Support | System APIs and reference code can be provided for secondary application development |
| APP Development | Supports upper-layer APP development, peripheral control, digital signage integration and customized software deployment |
Other Specifications
| Board Dimensions | 146 × 100 mm |
|---|---|
| RTC | Supports RTC real-time clock |
| System Upgrade | Supports local firmware upgrades via SD card or USB flash drive |
| Power Supply | 12 V DC, 3 A |
| Remote Control | Infrared remote control supported |
Typical Applications
- Intelligent digital signage
- Commercial advertising displays
- Lottery self-service terminals
- Electronic classroom signs
- Smart telephone terminals
- Electronic bus stop displays
- Retail self-service terminals
- Smart healthcare equipment
- Government service terminals
- Industrial control equipment
- Interactive information kiosks
- Smart education terminals
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