Electronic Projects for the Raspberry Pi Book 2 Interfacing to Analogue Signals by Seggy T Segaran, Book Free Download
Experimenting With AVR Microcontrollers Fun Projects with AVR, From Practical AVR Microcontrollers by Alan Trevennor
Raspberry Pi Hacks, Tips and Tools for Making Things with the Inexpensive Linux Computer by Ruth Suehle and Tom Callaway
Build Your Own Teams of Robots with LEGO Mindstorms NXT and Bluetooth by Cameron Hughes, Tracey Hughes, Trevor Watkins and Bob Kramer, Books Free Download