Pololu 3pi Robot - Manual (Page 20)

You can download a pdf version of the schematic here [http://www.pololu.com/file/download/3pi-schematic.pdf?file_id=0J119]
(481k pdf).
Pololu 3pi Robot User's Guide © 2001–2014 Pololu Corporation
5. How Your 3pi Works Page 20 of 63