A Christmas tree controller that include :
 - Infrared receiver (protocol NEC)
 - StepMotor controller (full-step, half-step, with strenght control)
 - Led string controller (WS2812B compatible)
 - Pseudo-random generator (32bits)

For more details see the "README.md" file from https://github.com/JulienOury/ChristmasTreeController.git repository.