Plug Shield description:
The Plug Shield allows using I2C-based JeePlugs with any Arduino or compatible clone. It acts as interface between the hardware I2C port and the plugs. There is a level converter on board, as well as a 3.3V regulator to supply power to the plugs. The reset button and ISP signals are duplicated on the shield.
Plug Shield specification:
Plug Shield pinout:
For more detail: Plug Shield
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