the base include:2 gearmotor driver(wheel dim=80mm),4 edge senser base,1dof head(ping senser attached).check the attachment photo for very big details.
this is a universal platform,i am going to use nano+l293d or 4channel rc+3g video or cellphone automatic answering with tone modulation code for the elec parts.the software is easy too,arduino is always best easy.i will post more details.
check here, http://makezine.com/19/makey/ it is a geart program for jiaomu bot.i have noe connected the edage senser,the nano’s I/O port was used over,i have to design some subsystem.