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.
The set includes step-by-step building instructions and an example of program (in Lego Wedo 2.0 environment).