45Pcs Power-Function Technic-Parts Kit M/L/XL/Servo/Train-Motor IR Speed Remote Control Battery Box IR Receiver Extension Wire Light Cord Control Switch Compatible with Lego-Motor-Kit.

LEGO Arduino = Brickduino (1. the LED)

LEGO Ideas Grand Piano 21323 Model Building Set for Adults, Collectible Home Décor Kit, Gift for Music Lovers with Motor and Power Functions