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ToT-40A Allwinner A40i Android Smart Display Controller Board with LVDS and HDMI Output
The ToT-40A is a full-featured Android smart terminal controller board powered by the Allwinner A40i quad-core Cortex-A7 processor. It supports Android 7.1, Full HD LVDS and HDMI output, five USB interfaces, TTL and RS232 serial communication, GPIO, ADC, I²C, Wi-Fi, optional Bluetooth 4.0 and PCI-E 4G connectivity. Its compact standard board design is suitable for advertising displays, digital signage, electronic menu boards, charging terminals, industrial automation equipment and intelligent self-service terminals.
Core Advantages
- Allwinner A40i quad-core Cortex-A7 processor
- Maximum CPU clock speed up to 1.2 GHz
- ARM Mali-400 MP2 GPU
- Android 7.1 operating system
- Full HD LVDS and HDMI output
- Five USB 2.0 interfaces
- TTL, RS232, GPIO, ADC and I²C expansion
- Built-in Wi-Fi and optional Bluetooth 4.0
- PCI-E 4G mobile network support
- TF card and USB firmware upgrades
High-Performance Quad-Core Platform
The ToT-40A uses the Allwinner A40i processor with four Cortex-A7 CPU cores and a maximum clock speed of up to 1.2 GHz. It delivers stable and cost-effective performance for commercial displays, smart terminals and industrial applications.
Mali-400 MP2 Graphics Processing
The integrated Mali-400 MP2 GPU supports decoding and playback of commonly used video and image formats, providing smooth multimedia performance for digital signage and advertising systems.
Optimized Android 7.1 System
Android 7.1 reduces system resource consumption and improves application installation and startup efficiency, creating a reliable software platform for smart display applications.
Classic Standard Board Design
The board dimensions and mounting-hole positions are compatible with the ToT-20A and DS831, helping simplify direct replacement and reduce equipment redesign and upgrade costs.
Full HD LVDS and HDMI Output
One LVDS output can directly drive compatible 50 Hz or 60 Hz LCD panels, while one HDMI output supports resolutions up to 1080p for external monitors and commercial display equipment.
Rich Expansion Interfaces
- 5 × USB 2.0 interfaces
- 2 × TTL serial ports
- 2 × RS232 serial ports
- 1 × I²C interface
- 4 × GPIO interfaces
- 1 GPIO configurable as ADC
- 1 × TF card interface
Flexible Network Connectivity
The ToT-40A supports built-in Wi-Fi and 10/100 Mbps auto-negotiation Ethernet. Optional Bluetooth 4.0 provides additional wireless peripheral connectivity.
PCI-E 4G Network Expansion
A compatible PCI-E 4G communication module can be connected for mobile network access in locations where wired Ethernet or Wi-Fi is unavailable.
High-Power Stereo Audio
The integrated stereo amplifier supports up to 2 × 20 W with 4 Ω speakers or 2 × 10 W with 8 Ω speakers, providing powerful audio output for commercial display applications.
ShiMeta Information Publishing
The ToT-40A can be integrated with ShiMeta information publishing software for multimedia scheduling, centralized content management and remote information distribution.
Android System Customization
Customized Android system functions, system APIs and reference code can be provided for upper-layer APP development, peripheral control and project-specific software integration.
Convenient Local Upgrades
Local firmware upgrades are supported through a TF card or USB flash drive, simplifying system deployment, maintenance and after-sales support.
ToT-40A Android Smart Display Controller Board Interface Diagram
Core Configuration
| Model | ToT-40A |
|---|---|
| CPU | Allwinner A40i quad-core Cortex-A7 processor, maximum clock speed up to 1.2 GHz |
| GPU | ARM Mali-400 MP2 |
| Operating System | Android 7.1 |
| Memory | 1 GB standard memory |
| Storage | 8 GB standard onboard storage |
Display Interfaces
| LVDS Output | 1 × single-channel or dual-channel LVDS output capable of directly driving compatible 50 Hz or 60 Hz LCD panels |
|---|---|
| HDMI Output | 1 × HDMI output supporting resolutions up to 1080p |
| Maximum Resolution | Up to 1920 × 1080 |
Expansion Interfaces
| USB | 5 × USB 2.0 interfaces |
|---|---|
| TTL Serial Ports | 2 × TTL serial ports |
| RS232 Serial Ports | 2 × RS232 serial ports |
| I²C Interface | 1 × I²C interface for compatible touch-panel controllers and external peripherals |
| GPIO | 4 × GPIO interfaces, including one interface configurable as an ADC input |
| Storage Card | 1 × TF card interface |
Network Support
| Wi-Fi | Built-in Wi-Fi |
|---|---|
| Bluetooth | Bluetooth 4.0 optional |
| Ethernet | 10/100 Mbps auto-negotiation Ethernet |
| Mobile Network | Supports PCI-E interface 4G connectivity with a compatible communication module |
Audio Configuration
| Audio Output | Stereo left and right channel speaker output |
|---|---|
| 4 Ω Speaker Output | Integrated 2 × 20 W amplifier output |
| 8 Ω Speaker Output | Integrated 2 × 10 W amplifier output |
Software and Development
| Information Publishing | Supports integration with ShiMeta information publishing software |
|---|---|
| System Customization | Customized Android system functions are available according to project requirements |
| API Support | System APIs and reference code can be provided for secondary application development |
Compatibility and Replacement
| Compatible Models | Board dimensions and mounting-hole positions are compatible with the ToT-20A and DS831 |
|---|---|
| Replacement Benefit | Suitable for direct replacement in compatible devices, helping reduce redesign and upgrade costs |
Other Specifications
| Board Dimensions | 123.8 × 87.7 mm |
|---|---|
| RTC | Supports RTC real-time clock |
| System Upgrade | Supports local upgrades via TF card or USB flash drive |
| Power Supply | 12 V DC, 3 A |
| Remote Control | Infrared remote control supported |
Typical Applications
- Commercial advertising displays
- Digital signage systems
- Electronic menu boards
- Electronic information displays
- Shared power bank terminals
- Electric vehicle charging stations
- Self-service terminals
- Industrial automation terminals
- Smart display terminals
- Video playback terminal equipment
Related information
