Sipeed Lichee Nano is an SD Card Sized Linux Development Board Powered by Allwinner F1C100s ARM9 Processor.

Features/Specifications:

CPU	-Allwinner F1C100s, ARM 926EJS processor,up to 900MHz
Memory & storage	-32MB DDR integrated into SoC -16MB SPI Flash for WiFi Version -Onboard TF Slot, can be boot from TF Card,
Display	-40-pin RGB LCD FPC connector supporting 272×480, 480×800, 1024×600 and other resolutions resistive displays(and capacitive displays trough the adapter board). -Support 720P video output, support video stream decoding such as H.264 / MPEG
Communication Interface	-SDIO for WiFi module -SPI x2, TWI x3, UART x3 -OTG USB x1, TV out
Other interface	-PWM x2, LRADC x1 -Headphone output x2, Mic x1
Electrical characteristics	-Input 5V via micro USB port, 3.3 to 5V via pin -Output – 3.3V, selectable input RTC voltage -Power Consumption – 54mA (idle) with Linux, 250mA with display -Storage Temperature: -40~125°C; operating: -20 to 70°C

Software and development environment:

Target application scenario:

IoT applications using more complex communication interfaces and protocols
The application of human-computer interaction interface that needs more beautiful and complex logic
Application scenarios that require more operations (as opposed to common MCUs)
Need to use open source software under Linux for rapid development scenarios
High-end geek players balance in size, performance and ease of use.
Entry level player, software engineer, hardware diy using familiar language

Size and weight:

Core board size	25.4x33.0mm
Core board weight	4.2±0.2g

Precautions:

start up	Nano needs card boot (or solder SPI flash), only plug in USB without any phenomenon
System debug serial port	UART0, specific position reference pin diagram
USB interface	OTG usb, power and communication
Operating temperature	-20~70℃