A20-OLinuXino-MICRO is a single-board computer in a very compact form. It uses the Allwinner Technology A20 Dual-Core ARM Cortex-A7 processor.
This board has everything you might possibly need: HDMI, plenty of memory, two SD card connectors, and plenty of GPIOs. It is suitable for embedded programming enthusiasts, Linux gadget fans and also professionals since its low cost makes it a good solution for application-orientated embedded systems. It allows embedded software development without fully needing to understand the hardware side.
This version of the A20-OLinuXino does not come with a pre-built OS, as it does not have NAND Flash. The board can boot from a microSD card. Pre-built Debian Linux and Android images are available to download; see below. In the Optional Recommended Products list at the bottom of this page, you can choose to add a microSD card with a Debian or Android image already installed.
In addition, the official Debian 8.0 Jessie release now has a Device Tree Blob specific to this board.
There is version of this board with 4GB NAND Flash, which will run 2-3 times faster than running from a microSD card — see the A20-OLinuXino-MICRO-4GB.
This board is an open-source hardware and software project; see the links below to participate in the development discussion.
Warning: If your HDMI TV does not have a grounded power supply, it can damage the OLinuXino board. If you can't use a grounded TV, add the 1000V DC USB Isolator between your PC's USB2.0 port and the USB-to-Serial Cable, and keep that cable connected to the OLinuXino board. The cable and the isolator can be purchased from the options below.
For Linux: In the pre-built image available from the Wiki page (or on the SD card listed below), the default display setting is for HDMI 720p @ 60Hz. The Wiki page has instructions for changing to an LCD or VGA display (or for changing the HDMI settings, e.g. to 1080p).
For Android: There are separate images available to support the 7-inch LCD or the 10.1-inch LCD. Other LCD sizes currently are unsupported. HDMI 720p and LCD output work simultaneously. VGA output is not supported in the current Android image (you could use the HDMI-to-VGA adapter listed below). The SD card option below will include the image with 7-inch LCD support. If you need the 10.1-inch support, please call us to make sure we write the correct image for you.