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Tutorial on Instructables - Video Demonstration

"Electronic LEGO Super Mario Bros. Mushrooms" - original creations and photography by Baron Julius von Brunk. Technical specs per model: ~300 LEGO pieces, 6 Volts DC (2x 3V CR2032 coin cells), two LEDs, sound: piezo speaker, microcontroller: Amtel ATtiny85 programmed with Arduino Uno.

Using the same design principles and technology as my electronic Invincibility Starmen, I’ve built a new series of interactive LEGO creations with a retro video game theme! Tapping the small tactile buttons on the backs of the mushrooms causes the eyes to blink in sync with melodies generated by Arduino. The green mushrooms play the 1-up sound effect, two of the red ones play a segment of the Overworld theme from Super Mario World, and the third red mushroom plays the airship victory music from Super Mario Bros. 3!

-Baron von Brunk

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