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From the MAKE Flickr pool

Ryan made this doorbell unit with customizable melodies -

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

Ringtones aren’t just for cellphones anymore! – Link

For more info check out his helpful video explanation of the project – Link

Related:

Wine glass door bell – Link

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The doorbell that plays WAVs – Link

Collin Cunningham

Born, drew a lot, made video, made music on 4-track, then computer, more songwriting, met future wife, went to art school for video major, made websites, toured in a band, worked as web media tech, discovered electronics, taught myself electronics, blogged about DIY electronics, made web videos about electronics and made music for them … and I still do!


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