1. Arduino homepage,
http://www.arduino.cc/
2. Blockly: a visual programming editor,
http://code.google.com/p/blockly/
3. Raspberry Pi homepage,
http://www.raspberrypi.org/
4. Tornado web server,
http://www.tornadoweb.org/
5. Alemany, J., Cervera, E.: Appealing robots as a means to increase enrollment rates: a case study. In: Proc. 3rd Int. Conf. on Robotics in Education (RiE 2012), Prague, Czech Republic, pp. 15–19 (2012)