3pi Expansion Kit without Cutouts - Red

This kit gives you everything you need to add a second level to your 3pi robot. In this version,
the LCD pins are brought up to the expansion board from the base via extended headers for your own custom use.
This red printed circuit board can also serve as a general-purpose round prototyping board.

The expansion PCB matches the diameter of the 3pi chassis and mounts just
above the tops of the wheels using the four included screws and spacers. Once assembled, the PCB has electrical
connections to the base that allow you interface your own electronics with the 3pi robot, which is sold separately.
These connections give you access to the ATmega168’s LCD pins, ISP programming pins, and free/jumpered pins,
 

as well as to the three on-board voltages: VBAT (battery voltage), VCC (regulated 5 V), and VBST
(regulated 9.25 V that is supplied to the motors).
Additionally, the expansion
PCB connects to the base’s power button and battery charge port,
allowing you to add your own power buttons and charge ports.

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