The Bells

My homebrew doorbell circuit. ATMEGA8 with 2 L293D push/pull driver chips running each of 12 solenoid-driven christmas bells. Songs are stored in EEPROM, and selected randomly when the doorbell is rung:

 

HOWTO:

youtube.com/watch?v=NW5ECcRoueI

 

Demo:

www.youtube.com/watch?v=j54ae5fqsAs

 

Foster's Home for Imaginary Friends:

www.youtube.com/watch?v=o6kTDrX4ep4

 

Katamari Damacy:

www.youtube.com/watch?v=DLoZ9kI6pZs&feature=related

 

Jetsons:

www.youtube.com/watch?v=M7MUJ7HPFug&feature=related

 

Hope this isn't too late for the MAKE contest!

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Taken on February 10, 2008