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A20 Linux Board, HDMI, SATA, Gigabit Ethernet, uSD, 2x USB-Host US$60.00

A20-OLinuXino-LIME2
A20 Linux Board, HDMI, SATA, Gigabit Ethernet, uSD, 2x USB-Host


A20-OLinuXino-LIME2 is a single-board computer in a very compact form. It uses the Allwinner Technology A20 Dual-Core ARM Cortex-A7 processor, and can run Arch, Gentoo, OpenWRT, Debian, Tizen, Ubuntu, and Fedora Linux distributions as well as Android 4.2.2.

This board is similar to the A20-OLinuXino-LIME but with 1GB DDR3 RAM (instead of 512MB), Gigabit Ethernet (instead of 10/100Mbps), better routing of DDR3 memory (8-layer PCB instead of 6) for increased performance, and all GPIO/LCD pin header rows swapped so they're correct when using cables.

This open-hardware board is a great alternative to Raspberry Pi or BeagleBone. It provides SATA, HDMI, 2x USB Hosts, USB-OTG, native Gigabit Ethernet, 160 GPIOs, plus a connector for a TFT LCD and the ability to be powered by a LiPo battery complete with built-in charging circuit. It can be powered by battery, USB-OTG or though a barrel jack to a regulated 5V DC supply. The latter two sources will recharge a connected LiPo battery also.

The whole thing isn't much larger than a credit card. In the options below, you can add a plastic case that encloses the system into a nice-looking "finished" product.

  • Download LIME vs Raspberry Pi Comparison (comparing the original A10 LIME specs)
  • This tiny computer does not come with a pre-built OS, as it doesn't have NAND Flash (there is a footprint on the PCB for adding one, or you can purchase the A20-OLinuXino-LIME2-4GB that has 4GB Flash installed). It can boot from a microSD card. A pre-built Debian Linux image is 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 the Debian image already installed. An Android image is available also.

    In addition, the official Debian 8.0 Jessie release now has a Device Tree Blob specific to this board, and it is supported now in openSUSE Factory.

    This board is an open-source hardware and software project; see the links below to participate in the development discussion.

    A20 Single-Board Computer Features

    • A20 Dual-Core Cortex-A7 CPU 1GHz and Mali 400 GPU
    • 1GB DDR3 RAM
    • SATA connector with 5V SATA power jack
    • HDMI connector with FullHD support (1080p)
    • 2x USB High-Speed Host with power control and current limiter
    • USB-OTG with power control and current limiter
    • 1000Mbps native Ethernet
    • LiPo battery connector with battery-charging capabilities (see compatible batteries)
    • LCD connector (see Display Options below)
    • 160 GPIOs on four GPIO connectors with 0.05" pin spacing
    • microSD card connector
    • DEBUG-UART connector for console debug with USB-to-Serial cable (see options below)
    • GPIO LED
    • Battery charge status LED
    • Power LED
    • 2KB EEPROM for MAC address storage and more
    • Buttons for Android functionality
    • Reset button
    • 4 mounting holes for optional case (see options below)
    • 5V input power supply; noise-immune design
    • Dimensions: 84 60 mm
    NOTE: The input through the power jack must be a regulated 5V DC supply. It is a 2.5mm barrel connector, positive inner. You can use the MIKROE-192 voltage regulator/rectifier board and the PWR-CABLE adapter for an easy, solderless solution if you don't have a regulated 5V supply available. The board also can be powered from the USB-OTG port or by a LiPo battery.

    LIME2 Board Layout

    The version you purchase from this page does not have the optional 4GB NAND memory installed.

    A20 Single-Board Computer Resources

    Note that the current Olimex Debian Linux build has Ethernet disabled by default, to improve boot speed for those not using it. The Wiki page has instructions for enabling the Ethernet controller.

    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.

    Display Options

    If you want to use one of the optional LCDs listed below, you'll also need the 0.05"-pitch 2x20-pin IDC Ribbon Cable to connect it, so be sure to select that in addition to the display. The 15.6-inch display will require a dedicated external 5V supply as well. Please take note of the following:

    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).


    Optional Recommended Products for this Item
    Plastic Box for A10-OLinuXino-LIME, Enclosure with End Plates+ US$9.67
    Bootable microSD Card with Debian Image for A20-OLinuXino-LIME2+ US$13.99
    Bootable microSD Card with Android Image for A20-OLinuXino-LIME2+ US$13.99
    GPIO and LCD Port Adapter for OLinuXino-LIME2, Plus UEXT Port+ US$4.32
    2x20 (40-pin) 0.05+ US$4.81
    4.3-inch LCD Touchscreen for OLinuXino and LIME/LIME2, 480x272+ US$49.50
    7-inch LCD for OLinuXino and LIME/LIME2, 800x480+ US$63.00
    7-inch LCD Touchscreen for OLinuXino and LIME/LIME2, 800x480+ US$76.95
    Frame Kit for 7" LCDs, e.g. Olimex A13-LCD7+ US$7.55
    10-inch LCD for OLinuXino and LIME/LIME2, 1024x600+ US$99.95
    10-inch LCD Touchscreen for OLinuXino and LIME/LIME2, 1024x600+ US$106.56
    15.6-inch LCD for OLinuXino and LIME/LIME2, 1366x768+ US$91.45
    15.6-inch LCD for OLinuXino and LIME/LIME2, 1920x1080+ US$104.00
    USB-to-Serial Cable, 6 Female Header Wires, 3.3V I/O+ US$14.90
    1000V DC USB Isolator+ US$41.33
    Polymer Lithium Ion Battery, 850mAh, JST Connector+ US$9.95
    Polymer Lithium Ion Battery, 2000mAh, JST Connector+ US$16.95
    Polymer Lithium Ion Battery Pack, 6Ah, JST Connector+ US$29.95
    SATA Data and SATA Power Cable Set for A20-OLinuXino+ US$7.45
    HDMI Cable, 6 ft., Standard, A Male to A Male+ US$4.95
    USB 2.0 Cable, 6ft., A-Male / B-Male+ US$6.00
    USB 2.0 Cable, 6ft. A-Male / Mini-USB (5-pin) B-Male+ US$6.00
    USB 2.0 Cable, 6ft. A-Male / Micro-USB (5-pin) B-Male+ US$6.00
    Ethernet Cable, CAT5E 350MHz Unshielded, 7ft.+ US$3.60
    Ethernet Crossover Cable, CAT5E 350MHz Unshielded, 5ft.+ US$7.00

    This product was added to our catalog on Friday 19 September, 2014.

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    Power Supply Adapter Cable, Bare Wires to 2.5/5.5mm Barrel PlugPower Supply Adapter Cable, Bare Wires to 2.5/5.5mm Barrel PlugUS$0.85

    Bootable microSD Card with Android Image for A20-OLinuXino-LIME2Bootable microSD Card with Android Image for A20-OLinuXino-LIME2US$13.99

    15.6-inch LCD for OLinuXino and LIME/LIME2, 1920x108015.6-inch LCD for OLinuXino and LIME/LIME2, 1920x1080US$104.00

    HDMI Cable, 6 ft., Standard, A Male to A MaleHDMI Cable, 6 ft., Standard, A Male to A MaleUS$4.95

    2x20 (40-pin) 0.05" pitch IDC Connector Flat Ribbon Cable, 10cm2x20 (40-pin) 0.05" pitch IDC Connector Flat Ribbon Cable, 10cmUS$4.81

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