Product Specifications
Walnut Pi 2 is based on the Allwinner T527 octa-core 64-bit Cortex-A55 high-performance processor.
Walnut Pi 2B
Overview
Detailed Specifications
| Specifications | |
|---|---|
| CPU | Allwinner T527 ● ARM, Octa-core Cortex-A55 64bit @1.8GHz High-performance Processor ● RISC-V @200MHz Co-processor |
| GPU | Mali G57 MC1 ● OpenGL ES 1.1/2.0/3.2 ● OpenCL 2.2 ● Vulkan 1.1/1.2/1.3 |
| NPU | 2 Tops, Supports INT 8/16/32b, Float 16/32b |
| DSP | HIFI4 @600MHz |
| Memory | 1GB / 2GB / 4GB LPDDR4 (Optional) |
| Storage | ● MicroSD card up to 512GB ● EMMC5.1 32GB Flash (Optional; other capacities available for customization) ● SPI Flash 8MB |
| Wireless | Dual-band WiFi6 (2.4G & 5G) + Bluetooth 5.0 (Onboard dual-band high-gain ceramic antenna, ipex4 external antenna optional) |
| Ethernet | Gigabit Ethernet (10M/100M/1000M Auto-Negotiation) |
| Audio Output | ● HDMI Audio ● HPOUT (FPC Connector) |
| Video Output | ● MicroHDMI 2.0a, Supports 4K@60fps ● MIPI Display (1x4 lane DSI, 2 lane compatible), Supports 1080P@60fps |
| Camera | MIPI Camera (1x4 lane CSI, 2 lane compatible) |
| Peripherals | ● PCIe 2.1 x 1 (Supports NVMe SSD) ● USB 3.0 x 1 ● USB 2.0 x 3 ● IR Receiver x 1 ● Button x 1 (Programmable) ● LED x 1 (Programmable) ● 40-Pin GPIO Header (Raspberry Pi Compatible) ● 3-Pin UART (Serial) Debug Header Note: PCIe 2.1 and USB 3.0 are mutually exclusive; switch between them via command. |
| Power | ● Type-C Port 5V@2A Input ● PoE (Power over Ethernet) |
| Operating Systems | Walnut Pi OS (Debian), Ubuntu, Android, Home Assistant |
| Physical Specifications | |
|---|---|
| Dimensions | 85 x 56 x 21mm (Length & width are PCB dimensions) |
| Weight | 43g (Bare board) |
GPIO Pinout
Dimension Diagram
Walnut Pi CM2
Overview
Pinout
Detailed Specifications
| Specifications | |
|---|---|
| CPU | Allwinner T527 ● ARM, Octa-core Cortex-A55 64bit @1.8GHz High-performance Processor ● RISC-V @200MHz Co-processor |
| GPU | Mali G57 MC1 ● OpenGL ES 1.1/2.0/3.2 ● OpenCL 2.2 ● Vulkan 1.1/1.2/1.3 |
| NPU | 2 Tops, Supports INT 8/16/32b, Float 16/32b |
| DSP | HIFI4 @600MHz |
| Memory | 1GB / 2GB / 4GB LPDDR4 (Optional) |
| Storage | ● MicroSD card up to 512GB (via BTB connector) ● EMMC5.1 16GB Flash (Optional; other capacities available for customization) ● SPI Flash 8MB |
| Wireless | Dual-band WiFi6 (2.4G & 5G) + Bluetooth 5.0 (Onboard dual-band high-gain ceramic antenna, ipex4 external antenna optional) |
| Ethernet (BTB Connector) | Gigabit Ethernet (10M/100M/1000M Auto-Negotiation) |
| Audio Input (BTB Connector) | MIC x 2 |
| Audio Output (BTB Connector) | HPOUT x 1 |
| Video Output (BTB Connector) | ● MicroHDMI 2.0a, Supports 4K@60fps ● MIPI Display (1x4 lane DSI, 2 lane compatible), Supports 1080P@60fps |
| Camera (BTB Connector) | MIPI Camera (1x4 lane CSI, 2 lane compatible) |
| Other Peripherals (BTB Connector) | ● PCIe 2.1 x 1 (Supports NVMe SSD) ● USB 3.0 x 1 ● USB 2.0 x 1 ● IR Receiver x 1 ● Button x 1 (Programmable) ● LED x 1 (Programmable) ● ADC x 1 (1.8V Range) ● 40-Pin GPIO (Raspberry Pi Compatible) ● Debug Serial Port (UART) ● BOOT Pin ● Power Input (5V) Note: PCIe 2.1 and USB 3.0 are mutually exclusive; switch between them via command. |
| Power | 5V@2A Input |
| Operating Systems | Walnut Pi OS (Debian), Ubuntu, Android, Home Assistant |
| Physical Specifications | |
|---|---|
| Dimensions | 55 x 40 x 4mm |
| Weight | 9.6g (Bare board) |
Dimension Diagram
Walnut Pi CM2 IO Baseboard
Overview
PCB Project Files
CM2 IO Baseboard PCB project files: Click to open >>
