Build the Battery Marvel
November 2011, Page 34
This easy-to-build 12V battery monitor will alert you well before your car, truck, boat, or motorcycle battery fails.
Build the rCube: A Talking Memo Alarm Clock
May 2009, Page 40
This unique talking clock and MP3 speaker can record voice memos or your favorite song for your alarm, plus it's an interactive nightlight too!
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