Data Sheet

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The integration is quite simple, just mount Witty Pi 2 over Raspberry Pi and mount the
USB hub under Raspberry Pi, you can do either part first. The Witty Pi comes with 4
female-female standoffs, while the USB hub comes with 4 female-male standoffs,
thus they could be connected together and has Raspberry Pi board in the middle.
Since Witty Pi 2 is the power manager, it should be the only one that gets connected
to the power supply.
For Raspberry Pi A+, B+ and Raspberry Pi 2/3 (B model), you can put the two
pogo pins in place, so they connect the +5V and GND between the USB hub and
Raspberry Pi. This is the same setup for back-powering Raspberry Pi when power
supply is connected to the USB hub. However, the purpose is different in this scenario.
The power supply will be connected to Witty Pi 2 only, and the pogo pins will take
power from the Raspberry Pi’s GPIO pin header, and power the USB hub.
With this setup, the USB hub will work in self-power mode, which maximizes the
output current of all USB ports.
For Raspberry Pi B+, Raspberry Pi 2 and Raspberry Pi 3 (B model), you can also put
another two pogo pins in place to make the USB data connection, so you don’t have
DC 5V Power Supply
Raspberry Pi USB Hub
Witty Pi
40-pin header
Pogo pins