Allwinner A20 User Manual download pdf (Page 9)

- USB-SERIAL-CABLE-F – for Android/Linux debugging on UART0

- CABLE-IDC40-15cm – cable used for LCD_CON ↔ Olimex LCD display

- Adapter cable for the 6-pin VGA connector to standard VGA 15-pin connector

Additional items include:

- Audio device for HEADPHONES jack

- Ethernet cable for wired Ethernet

- A number of extension modules that can add functionality or interface to the board on the UEXT

connector; these can be explored here: https://www.olimex.com/Products/Modules/

Some of the above-suggested items can be purchased by Olimex, for instance:

SY0612E – reliable power supply adapter 50Hz (for EU) 12V/0.5A for A20-OLinuXino-MICRO

SY0612E-CHINA – cheaper power supply adapter 50Hz (for EU) 12V/0.5A for A20-OLinuXino-

MICRO

A20-Android-SD – a tested class 10 micro SD card with the latest (by the time of leaving the

Olimex facilities) official Android release

A20-Debian-SD – a tested class 10 micro SD card with the latest (by the time of leaving Olimex

facilities) official Debian Linux release

USB-SERIAL-CABLE-F – USB serial console cable female

USB-MINI-CABLE – standard USB type A to USB type mini cable

A20-VGA-CABLE – adapter from 6-pin connector to 15-pin one

CABLE-IDC40-15cm – cable for LCD to LCD_CON connection

A13-LCD43TS – low-cost 4.3'' LCD display with touchscreen component – 480×272

A13-LCD7 – low-cost 7'' LCD display with optional touchscreen component – 800×480

A13-LCD10 – low-cost 10'' LCD display with optional touchscreen component – 1024×600

SATA-HDD-2.5-500GB – 5GB 2.5'' SATA hard disk

SATA-CABLE-SET – cables that allow the connection of a 2.5'' hard disk to the board

ALUMINIUM-HEATSINK-20×20×6MM – heatsink radiator for better processor heat dissipation

2.3 Powering the board

There are three possible ways of powering A20-OLinuXino-MICRO-4GB – via external supply

providing 6-16V DC at the power jack, from 5V USB port via USB_OTG connector or from 3.7V

Li-Po battery via the LIPO_BAT. Note that the board consumes around 300mA of current at 12V

when there are no peripherals connected to the USB hosts, so make sure the power supply is able to

provide at least 500mA before plugging. Depending on your preferred way of powering you might

need additional hardware.

Important: Not all USB ports would be able to provide enough power for the board. Try using

another USB port/USB hub or a cable of higher quality. The best practice is not to count on the mini

USB-OTG as a single power source!

The preferred way of powering the board is via the PWR jack with 6-16V DC with a power of 5W

(e.g. 6Vx0.8A; 16Vx0.3A). This will make the board fully powered and able to power all the

peripherals connected to it.

Note that when powering the board from the USB_OTG, the power provided might be insufficient

to also power a bigger LCD connected to the LCD_con. However, this power option is capable of

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Allwinner A20 User Manual Page 9