Distinctive Excellence

Babylon Five Imitation Doorbell

This unique project replicates a sound from the “Babylon 5” TV series  (WB) for a doorbell. Using few external components, including an audio amplifier and power supply regulators, the CY8C2213 microcontroller-based system recreates the show’s signature sound with three short 366-Hz bursts followed by a longer 733-Hz burst.

Sigurd Peterson
sig3@nwlink.com
U.S.
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Contest ended December 6, 2004

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