≡

A20-OLinuXino-MICRO

Embedded ARM Linux computer with Allwinner A20 1GB RAM and Megabit Ethernet

https://www.olimex.com/Products/OLinuXino/A20/A20-OLinuXino-MICRO/open-source-hardware

Select Product Variant

A20-OLinuXino-MICRO
A20-OLinuXino-MICRO-e16Gs16M
A20-OLinuXino-MICRO-e4Gs16M
A20-OLinuXino-MICRO-n8G
A20-OLinuXino-MICRO-s16M
T2-OLinuXino-MICRO-e16Gs16M-IND
T2-OLinuXino-MICRO-e8Gs16M-IND
T2-OLinuXino-MICRO-IND
T2-OLinuXino-MICRO-s16M-IND

Price	41.00 EUR
10 - 49 pcs	38.95 EUR
50 - 10000 pcs	36.90 EUR

A20-OLinuXino-MICRO is OSHW certified Open Source Hardware with UID BG000040

Linux-enabled Allwinner A20 development board with Ethernet, HDMI output, 1GB DDR3 RAM memory, two SD card connectors, plenty of free GPIOs and much more.

Open source hardware and open source software A20 Linux board with 0.1" step connectors for easier access and evaluation.

We offer several variants of this board. Aside from the base version we offer a variant with extra eMMC or NAND flash memory (suffix -e4G, -e16G, or -n8G); we have a variant with 16M SPI flash memory (suffix -s16M). We also have variants of the board suitable for industrial temperature range of operation (-40+85)C - these come with the "T2" chip and have "-IND" suffix in the name.

FEATURES

Allwinner A20 (T2) dual core Cortex-A7 processor, each core typically running at 1GHz and dual-core Mali 400 GPU; capable of FullHD (1080p) video playback
1GB DDR3 RAM memory
Optional 4GB or 16GB eMMC flash memory (in xxx-e4Gyyy or xxx-e16Gyyy board variants)
8GB NAND flash memory option (in xxx-n8G variant)
2KB EEPROM for MAC address storage and more
100Mbit native Ethernet with controller and connector
Battery connector with battery-charging capabilities
SATA connector and 5V HDD power connector
HDMI connector
2 x USB High-speed host with power control and current limiter
USB-OTG with power control and current limiter
VGA output on 6-pin 1.25mm (0.05") step connector
Audio headphones output
Microphone input on connector
2 x UEXT connectors
LCD connector compatible with with 4.3", 5", 7.0", 10.1", 15.6" Olimex-made LCDs
160 GPIOs on three GPIO connectors
MicroSD card connector
SD/MMC card connector
DEBUG-UART connector for console debug with USB-SERIALcable
GPIO LED
Battery charge status LED
Power LED
10 BUTTONS with ANDROID functionality + RESET button
4 mount holes
6-16VDC input power supply, noise immune design up to Rev.I
8-24VDC input power supply, noise immune design Rev.J or later
PCB dimensions: (5600 x 3250) mils ~ (142.24 x 82.55) mm
Ambient temperature (0 - 70)°C for non industrial boards
Ambient temperature (-45 +85)°C for -IND boards

DOCUMENTS

HARDWARE

GitHub repository for the OLINUXINO project - source files, documentation, examples and more

SOFTWARE

Outdated wiki article with Linux usage and build instruction for older images

FAQ

I am an inexperienced user and I'm afraid to mess up initially. What are the most common errors in the initial start-up of the board?
The best idea is to download the latest official image provided for the board. After that ensure the image is properly written to the SD card or the flash memory. Finally, if you are expecting video output problems, ensure the image is set with the proper settings for the display or monitor you are going to use. Double check if the power supply is sufficient (especially if powering a display from the board).

I purchased A20-OLinuXino-MICRO with extra flash memory and want to install Linux to the flash. Is this possible?
Yes. Prepare a card with the official Linux image and run an install script. If your board has NAND memory you would have to use older kernel releases (3.4.x) since newer kernel releases lack NAND support (only eMMC).

I can't find Android image with VGA output. Please send me an image with the correct configuration settings.
We couldn't compile Anroid image with proper VGA output despite our numerous attempts, we have only Android image for HDMI or LCD output. Please note that: we neither have nor provide an Android image for a VGA monitor. There is a tested and working Linux image for VGA monitor.