https://www.arduino.cc/
123d.Circuits.io
https://123d.circuits.io/
Instructubles
http://www.instructables.com/
Makezine
http://makezine.com/
Fritzing
http://fritzing.org/home/
Homofaciens
http://www.homofaciens.de/technics_en_navion.htm
Сайт Паяльник
http://cxem.net/arduino/arduino.php
Robotev
http://robotev.com/

Common
http://wiki.amperka.ru/
https://evantoh23.wordpress.com/

CNC

http://www.homofaciens.de/technics-machines-cnc-v2_en_navion.htm
http://www.homofaciens.de/technics-computer-arduino-uno_en_navion.htm