ساخت پنکه با قطعات رباتیک

http://www.pishrobot.com

Hello,
I am Amir Reza.
I have learnt Robotics at PishRobot's Educational Center.
I have made a fan using OLLO parts and Sensors...
This fan is not a fixed one, it can turn around about 170 degrees and flow air in each direction. The fan is turned on and off by this key.
I've put motor lower than the blade's shaft to increase the speed with gears.