Pi Block Functional Diagram

• USB Power - used to provide 5V to Pi Block and power the Edison.

Note that the data lines are not connected to the Edison.

• Power Button - The power switch is connected to the “PWRBTN” line

on the Edison. This give the user the ability to place an Edison in

sleep or power down the module completely. This does not affect

power to other Blocks in the stack.

• Power LED - The power LED illuminates when power is present on

VSYS. This can come from the onboard USB Power or any other

powered Block in the stack.

• Expansion Header - The 70-pin Expansion header breaks out the

functionality of the Intel Edison. This header also passes signals and

power throughout the stack. These function much like an Arduino

Shield.

• LED Jumper - If power consumption is an issue, cut this jumper to

disable the power LED.

• VSYS Jumper - By default, a USB cable must be attached to the

USB Power port to provide power to the 5V pins on the RPi B

Header. You can power the Edison and Pi Block from another Block

(e.g. Base Block), but there will not be 5V on the pins labeled “5V”.

By closing this jumper, you can power the Edison and Pi Block from

another Block, and ~4.2V (VSYS) will appear on the pins labeled

“5V”.

• RPi B Header - Same configuration as the old Raspberry Pi Model B

pinout.

Using the Pi Block

To use the Pi Block, attach an Intel® Edison to the back of the board, or

add it to your current stack. Blocks can be stacked without hardware, but it

leaves the expansion connectors unprotected from mechanical stress.

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