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== TIAO Raspberry Pi Zero Buddy User Manual ==

This manual helps you to connect Raspberry Pi Zero to TIAO Raspberry Pi Zero Buddy purchased from [http://www.diygadget.com/tiao-zero-buddy-usb-ethernet-expension-board-for-raspberry-pi-zero.html http://www.diygadget.com].

This is the board layout:

[[Image:Zeroboard.png||none]]

# USB uplink  1 (Can only use uplink 1 or 2, but cannot use both)
# USB downlink 1
# USB downlink 2
# USB downlink 3
# Ethernet RJ45 receptacle for wired internet connection
# USB uplink 2 (Can only use uplink 1 or 2, but cannot use both)
# USB Power selection.  Jumper on 1-2: power from uplink 2.  Jumper on 2-3: power from uplink 1

=== Up link selection ===
This board can be used with a raspberry Pi zero to expand Pi zero to have 3 more USB port and a wired network connection.  It can also be used as a USB hub with wired network connection.

If you plan to use it together with Raspberry Pi Zero, it is recommended to use the include cable to make the connection.  The supplied cable is a special custom made cable.  One end connect to the
micro usb port of the Raspberry Pi Zero, the other end connect to the header #5 on the board.  The pinout for the header is:

# (square pad) Vin (5v)
# USB D-
# USB D+
# GND
# GND

The supplied cable only has 4 wires, so the missing one towards to the upside of the board as shown below:

[[Image:zero2.png||none]]

If you would like to use it as a USB hub with wired network, move the power jumper to 2-3, remove plugs from uplink 2 and run a USB A to A male cable from uplink 1 to the host, then you are down.

If you need more power for both scenarios, remove power jumper from header 6, then connect a 5V power to pin 2 (middle) of header 6, and GND to pin 4 of header 5, then you are all set.