Powered by a lithium rechargable battery, commands are given by an Arduino Nano hooked up to a MPU6050 3-axis gyroscope. ... 10 thoughts on “ Surfboard LED Strips Light Up The Waves ” ...

A custom and home-etched PCB using an ATtiny4313 instead of an Arduino are the clock’s brains, a Maxim DS1307 for time-keeping, and a simple rotary encoder as the input for setting the time.