|95mm x 145mm x 27mm
|Indiegogo Product Page
|A20 @ 1Ghz
|1GiB DDR3 @ 480MHz
|DC 9V @ 2A
|HDMI, TOSLINK S/PDIF
|10/100Mbps Ethernet (Realtek RTL8201CP)
|3 USB2.0 Host (GL850G hub), 1 USB2.0 OTG (port 4)
The Itead IBOX is a variation of the Iteaduino Plus A20. It uses the same mainboard module, but a different baseboard, and it comes with a nice case as well.
The IBOX is easily identifiable by the "IBOX" branding on the side, the aluminium case and high-gloss finish on the top of the case.
The IBOX is very similar to the Cubieboard2 and boots most images build for the Cubieboard2 without issues. Images which Itead Studio themselves suggest actually have Cubieboard2 as the board type in u-boot. Thus, support is on-par with the Cubieboard2.
Cubieboard2 images will work for this board. Itead lists some images here
You can build things for yourself by following our Manual build howto and by choosing from the configurations available below.
Use the Cubieboard2_defconfig build target unless Itead_Ibox_A20_defconfig is available.
Use the Cubieboard2 build target.
Use the iteaduino_plus_a20.fex file.
Use the sun7i-a20-itead-ibox.dtb device-tree file for the mainline kernel.file.
Tips, Tricks, Caveats
The Uboot button, left of the USB ports, triggers FEL mode. Hold the button in while plugging in power.
3 of the 4 USB ports are connected to the outputs of the USB hub IC. However, USB 4 is connected directly to the port and supports USB OTG. Pins 1 and 2 of the expansion header export the same USB OTG port.
Power is supplied by an MP2307 switching regulator. Theoretically, you should be able to power this board with 12V (which is more convenient than 9) without issues. The regulator provides a maximum of 3A @ 5V.
The device will also run if powered over the USB OTG port, which means you can run it from a 5V supply. Be careful as this is not intended operation and there is no protection for over-current, reverse polarity etc. That being said, I've measured a peak draw of about 700-800mA over 5V so a 1A supply should work well. Try this at your own risk - it is a hack.
The IBOX also has a dual-colour LED (red/green) and in infrared receiver connected to PB4 of the A20.
The 32pin expansion header provides access to
- Stereo analogue input/output
- 4 UARTs (2 dedicated, 2 shared by SPI pins)
- Duplication of USB port 4
Board can be disassembled by removing the 4 screws on the bottom of the box. It is intended to be a development platform in a consumer package, so they have not made it difficult.
Locating the UART
The UART can be found on pins 9 (TX) and 10 (RX) with ground on pin 29 on the expansion header. Read the UART howto for more information.
Also known as
The IBOX shares the core board with the Iteaduino Plus A20.