Boxer Lego Wedo 2.0

The Boxer is built from the Lego Wedo 2.0 educational kit. The robot’s drive is implemented on a combination of spur and bewel gears. Due to two belt drives, the rotation is transmitted to the crank, and the hands in “boxing gloves” perform a reciprocating motion. You can activate the robot by shouting “Go ahead” loudly — the microphone sensor will register the sound change and start the motor.

You can buy step by step building instruction of Boxer
https://roboinstruction.com/downloads/boxer-lego-wedo-2-0/

Видео Boxer Lego Wedo 2.0 канала Roboinstruction