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RK3506 Embedded Motherboard
The P3506 motherboard : Smart Display & Control Core is a highly efficient, lightweight solution for Human-Machine Interface (HMI) development, optimized for seamless integration with LVGL and providing developers with total control over their projects. With a balanced hardware configuration and a full suite of open-source tools, the P3506 is the perfect choice for creating stunning UIs for a wide range of applications.
Key Features








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| Category | Item | Specifications |
|---|---|---|
| Basic Parameters | SOC | Rockchip RK3506 |
| CPU | 4-core 32-bit processor (3 × Cortex-A7 + 1 × Cortex-M0), max 1.6GHz in overclock mode | |
| Image Processing | Built-in 2D graphics engine | |
| Video Decoding | Software decoding: 720P@30fps, 480P@60fps, supports H.264 / MJPEG | |
| Memory | Onboard 128MB DDR3 | |
| Storage | 128MB NAND Flash + 1 × TF card slot | |
| OS | Linux system supported | |
| Power Supply | 12.0V (voltage tolerance ±5%); expandable PoE, DC, AC power supply | |
| Dimension | 90mm × 70mm | |
| Power Consumption | Max: 1.5W (5V/300mA); Typical: 1W (5V/200mA); Sleep mode: Not supported | |
| Operating Environment | Operating temperature: -20°C to 60°C; Storage humidity: 10%–90%RH (non-condensing) | |
| Interface Parameters | Ethernet | 1 × 100Mbps Ethernet (RJ45, PoE power supply) |
| WIFI & BT | 2.4GHz/5GHz dual-band Wi-Fi 6, 802.11a/b/g/n/ac/ax; Bluetooth 5.4 | |
| Display | 1 × MIPI-DSI (1/2 lanes, 1280 × 1280@60fps, 40Pin-0.5mm); Max resolution 720P for 2-lane MIPI screen | |
| Audio | 2 × Speaker output (1.2W 8Ω); 1-channel analog MIC input | |
| USB | 2 × USB 2.0 Host + 1 × Type-C | |
| Touch | I2C touch & USB touch supported | |
| Buttons | 1 × Reset, 1 × Recovery, 1 × Boot | |
| Other Interfaces | 2 × UART, RGB LED, 2 × GPIO | |
| Expansion Ports | RS485, RS232, UART, etc. |
Q1: What makes the P3506 motherboard unique for Human-Machine Interface (HMI) development?
A1: The P3506 is a highly efficient, ultra-lightweight solution specifically optimized for the LVGL (v8.3+) graphics library. It features an incredibly minimal resource footprint, running smoothly on less than 50KB of RAM while maintaining high-performance display and control capabilities. This gives developers an optimized platform to create stunning UIs without heavy hardware overhead.
Q2: What is the processor architecture of the P3506, and how does it ensure smooth UI rendering?
A2: The P3506 is powered by the Rockchip RK3506 triple-core Cortex-A7 CPU. To ensure fluid graphical performance, it integrates a dedicated 2D graphics engine and display engine. This hardware acceleration offloads intense visual tasks from the CPU, enabling efficient, lag-free rendering of over 30 built-in widgets and high-quality text via the Freetype font engine.
Q3: What open-source resources are provided with the P3506 to accelerate time-to-market?
A3: We provide a comprehensive ecosystem of open development materials to grant engineering teams total control over their projects:
Open SDK: A full Software Development Kit allowing for independent, custom firmware compilation and faster development cycles.
Multi-OS Compatibility: Ready-to-deploy system firmware supporting Android, Debian, Ubuntu, and Buildroot.
Turnkey Assets: Full access to APIs, APKs, demo applications, firmware programming guides, and pre-designed reference motherboard layouts to jumpstart prototyping.
Q4: What peripheral expansion and communication interfaces are available on the P3506 layout?
A4: Designed with excellent scalability for both DIY prototyping and mass commercial manufacturing, the P3506 breaks out a versatile array of interfaces:
Networking & Advanced I/O: Advanced MAC networking, camera interface, and a customizable Localbus for seamless peripheral device interconnects.
Industrial Communication: Standard RS485, RS232, and UART serial interfaces.
Environmental Sensing: Seamless integration options for light, temperature, and humidity sensors.
Q5: What are the power output specifications of the P3506, and how does it adapt to rugged industrial deployments?
A5: A major competitive edge of the P3506 is its highly adaptable power architecture. It natively supports a broad range of power options, including 12V, 24V, 48V, and 96V power outputs, with scalability for higher voltages in industrial settings. This allows the motherboard to directly drive heavy-duty industrial peripheral systems, eliminating the need for external voltage converters and lowering procurement costs.
Q6: What are the primary application scenarios for the P3506 motherboard?
A6: Thanks to its triple-core efficiency, localized smart voice/audio processing capabilities, and low memory footprint, the P3506 is perfectly suited for:
Home Automation: Centralized smart home consoles, climate control devices, smart switches, and lighting management systems.
Handheld POS Terminals: Secure, power-efficient, and highly responsive mobile point-of-sale terminals for retail and commercial environments.
Intercom Systems: Voice and video communication terminals for modern residential, commercial, or public facilities.