1.1 Introduction & Specifications¶
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The Smart Pi One uses the Allwinner H3 Soc. It integrates Ethernet, IR receiver, video/audio output and supports HDMI and AVOUT. It can be powered via the MicroUSB port (DC 5V/2A and POWER DELIVERY CHARGER).
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In such a small board it still integrates rich interfaces and ports. HDMI, Ethernet, USB-Host, USB-OTG, DVP camera interface and AVOUT (audio and video) it has an onboard Microphone, IR receiver, a serial debug port and a Raspberry Pi compatible 40 pin GPIO pin header.
Specifications¶
- CPU: Allwinner H3, Quad-core Cortex-A7-1.3GHz
- GPU: Mali400MP2@600MHz，Supports OpenGL ES2.0
- DDR3 RAM: 1GB
- Connectivity: 10/100M Ethernet
- Audio: 3.5mm audio jack/Via HDMI
- Microphone: Onboard microphone
- IR Receiver: Onboard IR receiver
- USB Host: USB 2.0 x 3 Type A
- MicroSD Slot: 1
- MicroUSB: for data transmission and power input, OTG
- Video Output: HDMI 1.4 1080P, CVBS
- DVP Camera Interface: 24pin, 0.5mm pitch FPC seat
- Debug Serial Port: 4Pin, 2.54mm pitch pin header
- LED: Power led & Status led
- GPIO: 2.54mm spacing 40pin, compatible with Raspberry Pi's GPIO. It includes UART, SPI, I2C, IO etc
- User Key: GPIO Key x 1, Reset x 1
- PC Size: 72 mm x 60 mm
- Power Supply: DC 5V/2A or POWER DELIVERY CHARGER
- Working Temperature: -30℃ to 70℃
- Weight: 33g
- OS/Software: YumiOS, Debian 12(Armbian), Ubuntu(Armbian)
1.2 Software Features¶
Official Linux Server Image: https://wiki.yumi-lab.com/SmartPI/SmartPi_Linux/
1.3 Layout¶
[Top view]
[Bottom view]
1.4 Diagram¶
GPIO Pin Spec¶
| Pin# | Name | Linux gpio | Pin# | Name | Linux gpio |
|---|---|---|---|---|---|
| 1 | SYS_3.3V | 2 | VDD_5V | ||
| 3 | I2C0_SDA/GPIOA12 | 4 | VDD_5V | ||
| 5 | I2C0_SCL/GPIOA11 | 6 | GND | ||
| 7 | GPIOG11 | 203 | 8 | UART1_TX/GPIOG6 | 198 |
| 9 | GND | 10 | UART1_RX/GPIOG7 | 199 | |
| 11 | UART2_TX/GPIOA0 | 0 | 12 | GPIOA6 | 6 |
| 13 | UART2_RTS/GPIOA2 | 2 | 14 | GND | |
| 15 | UART2_CTS/GPIOA3 | 3 | 16 | UART1_RTS/GPIOG8 | 200 |
| 17 | SYS_3.3V | 18 | UART1_CTS/GPIOG9 | 201 | |
| 19 | SPI0_MOSI/GPIOC0 | 64 | 20 | GND | |
| 21 | SPI0_MISO/GPIOC1 | 65 | 22 | UART2_RX/GPIOA1 | 1 |
| 23 | SPI0_CLK/GPIOC2 | 66 | 24 | SPI0_CS/GPIOC3 | 67 |
| 25 | GND | 26 | SPDIF-OUT/GPIOA17 | 17 | |
| 27 | I2C1_SDA/GPIOA19/PCM0_CLK/I2S0_BCK | 19 | 28 | I2C1_SCL/GPIOA18/PCM0_SYNC/I2S0_LRCK | 18 |
| 29 | GPIOA20/PCM0_DOUT/I2S0_SDOUT | 20 | 30 | GND | |
| 31 | GPIOA21/PCM0_DIN/I2S0_SDIN | 21 | 32 | GPIOA7 | 7 |
| 33 | GPIOA8 | 8 | 34 | GND | |
| 35 | UART3_CTS/SPI1_MISO/GPIOA16 | 16 | 36 | UART3_TX/SPI1_CS/GPIOA13 | 13 |
| 37 | GPIOA9 | 9 | 38 | UART3_RTS/SPI1_MOSI/GPIOA15 | 15 |
| 39 | GND | 40 | UART3_RX/SPI1_CLK/GPIOA14 | 14 |
Debug Port（UART0）¶
| Pin# | Name |
|---|---|
| 1 | GND |
| 2 | VDD_5V |
| 3 | UART_TXD0/GPIOA4 |
| 4 | UART_RXD0/GPIOA5/PWM0 |
DVP Camera IF Pin Spec¶
| Pin# | Name | Description |
|---|---|---|
| 1, 2 | SYS_3.3V | 3.3V power output, to camera modules |
| 7,9,13,15,24 | GND | Ground, 0V |
| 3 | I2C2_SCL | I2C Clock Signal |
| 4 | I2C2_SDA | I2C Data Signal |
| 5 | GPIOE15 | Regular GPIO, control signals output to camera modules |
| 6 | GPIOE14 | Regular GPIO, control signals output to camera modules |
| 8 | MCLK | Clock signals output to camera modules |
| 10 | NC | Not Connected |
| 11 | VSYNC | Vertical synchronization to CPU from camera modules |
| 12 | HREF/HSYNC | HREF/HSYNC signal to CPU from camera modules |
| 14 | PCLK | PCLK signal to CPU from camera modules |
| 16-23 | Data bit7-0 | Data signals |
1.5 Board Dimension¶
