Wedo HD22

From linux-sunxi.org
Jump to: navigation, search
Wedo HD22
HD22 front.jpg
Manufacturer WeDo Innovation
Dimensions 93mm x 52mm x 17mm
Release Date December 2012
Website WeDO HD22
Specifications
SoC A20 @ 1Ghz
DRAM 1GiB DDR3 @ 432MHz
NAND 8GB
Power DC 5V @ 1.5A (0.75mm/2.35mm barrel plug - center positive)
Features
Video HDMI (Type A - Full), 3.5mm A/V connector
Audio HDMI, 3.5mm A/V connector, 3.5mm microphone connector, internal microphone
Network WiFi 802.11 b/g/n (Realtek RTL8188ETV)
Storage µSD
USB 1x USB2.0 Host, 1x USB2.0 OTG
Camera 5.0MP (2592x1944) front (Samsung S5K4EC/OmniVision OV5640)

The WeDoInnov HD22 is an A20 based HTPC designed to look like a webcam. It comes with a mounting bracket so it can sit on the top of a TV set.

Identification

In android, under Settings->About Tablet, you will find:

  • Model Number: TV BOX
  • Build Number: HD22_4.2.2_V2.0_20140422

Sunxi support

Current status

Everything but the Samsung S5K4EC camera is supported.

Images

HW-Pack

BSP

Manual build

  • For building u-boot, use the EU3000 target.
  • The .fex file can be found in sunxi-boards as eu3000.fex

Everything else is the same as the manual build howto.

Tips, Tricks, Caveats

FEL mode

There is an extra button on the PCB which can be pushed via small hole on the device's right side, in the middle before the grill. Push it during power up and it will enter into FEL mode.

Camera

Some of the early models have OmniVision OV5640 camera. More recent models come with the Samsung S5K4EC, for which no driver is currently available.

Adding a serial port (voids warranty)

HD22 UART pads

Device disassembly

The device is held together with three smalls screws and some plastic clips. Unscrew the three screws (one is under the QC label, this is slightly bigger then the rest), and a bit slide the bottom cover to the right (towards the two screw hole). This will unclip the plastics and you can easily detach them.

The PCB held in place by two screws on the top casing.

Locating the UART

The UART pads can be found between the SoC and USB OTG connector. Just solder on some wires according to our UART howto. Be careful though, as the pads are tiny.

Pictures

Also known as

See also

Manufacturer images