1.b. Included Components

The m3pi is available fully assembled with a 3pi robot base or as an expansion kit for the 3pi robot.

Fully-assembled Pololu m3pi robot.

Fully-Assembled m3pi Robot with mbed Socket

The following connectors and components are already installed on the fully-assembled m3pi robot (as shown in the picture on the right):

• mbed socket
• XBee socket
• USB A connector
• 2-pin battery-charging header
• Power pushbutton
• Two general-purpose pushbuttons
• 6-pin shrouded ISP connector
• All of the pins needed to connect to the 3pi robot base (male headers on the expansion PCB and matching female headers on the 3pi base)

Hardware included with the Pololu m3pi robot.

The fully-assembled m3pi robot also includes some optional hardware and connectors:

• One 1×11 0.1″ female header and one 1×12″ female header for adding a Wixel socket to the m3pi
• Three red shorting blocks, three yellow shorting blocks, and three black shorting blocks (the 3pi base ships with three blue shorting blocks already in place)
• Two red LEDs and two green LEDs
• One 12″, 6-pin ISP cable

m3pi Expansion Kit for 3pi Robot

Pololu m3pi expansion kit.

The m3pi expansion kit PCB has all of the surface-mount components populated, but none of the through-hole components ship soldered in. When combined with a 3pi robot (not included), the m3pi expansion kit includes everything required to make your own fully-assembled m3pi robot as pictured in the section above. These components are shown in the picture on the right and include:

• Two 2×20 0.1″ female headers for adding an mbed socket
• One 1×11 0.1″ female header and one 1×12″ female header for adding a Wixel socket
• Two 1×10 2mm female headers for adding an XBee socket
• One extended 2×7 0.1″ male header and two extended 1×2 0.1″ male headers for connecting the expansion PCB to a 3pi base
• One 2×7 0.1″ female header and one 1×2 0.1″ female header for soldering to the 3pi base so it can accept the male connectors of the m3pi expansion PCB
• One 1×2 0.1″ female header for use as a charge port on the expansion PCB
• Three 1×2 0.1″ male headers for use with shorting blocks for optional configuration of m3pi PCB connections (three blue shorting blocks are also included)
• One 6-pin shrouded ISP connector that can be used with the included 12″, 6-pin ISP cable to optionally let the mbed program the 3pi base
• One USB A connector (can be used when the mbed is acting as a USB host)
• Three pushbuttons for use as a power button and two general-purpose buttons on the expansion PCB
• Four screws, spacers, and nuts for mounting the expansion PCB to the 3pi base