inventor simone giertz constructs alarm clock with slapping rubber arm

inventor simone giertz constructs alarm clock with slapping rubber arm
all images courtesy of simone giertz

professional maker and robotics enthusiast simone giertz solves the problem of sleeping-in with an alarm clock that will definitely get people up out of bed. using a rubber arm, a traditional bell clock and an arduino ‘UNO’ computer processor, giertz successfully built a minimal working alarm clock. she used a 165 rpm brushless DC motor that guarantees the power to slap someone effectively. using household items, simone giertz had some setbacks – overloading transistors and getting her hair stuck in the motor, but showed that with determination and persistence, you can triumphantly make an enthusiastic alarm clock that wakes you up. 

eventually the alarm ended up tangling her hair in the motor

(via mashable)