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Lego WEDO Wind turbine programmed with Scratch

Build a wind turbine with lego and program it with Scratch using the microphone of the computer as the wind input.
Implemented by students from the robotics club of the Experimental Elementary School of Florina, during the 2015-2016 season. We followed instructions from WEDO Bots ( with some changes for better stability.

The motor is controlled by a microphone that serves as a wind sensor (loudness). A Scratch program instructs the motor to spin faster as the wind picks up (loudness of the microphone).