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Jack-o-lanterns are cool, but with extra time on my hands, why not go the extra mile...
LEDs are better than candles, but I think I can do better.
Yup, that’s an ultrasonic sensor on his chin.
The Sloppy electronics to make my pumpkin the best one ever.
A 2S2C LiPo battery to drive the vibration motor, a Red Lithium USB battery to power the MCU, LEDs, ultrasonic sensor and control the motor driver
With sound, you could hear the pumpkin hopping across the table when someone gets close
Scary enough to surprise my roommate? indeed :)