By paul2d3d
DFrobot make a number of MEGA boards, which is the best to use with a robot projects (lots of serov's and four DC motors etc) alone with the dfrobot DF Mega Multi -Arduino Mega Expansion shield board

You can not give to much information, any books or good reading data on DFboard

Thanks for you help
By techsupport
Each product has a detailed description and instructions, we called WIKI, at the bottom of the product page. In addition to arduino's official products, there are many infro on arduino's official website.