March 2, 2011 AT 8:40 am


 Images Tech Build Fp-Front

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John writes in

A friend wanted me to modify a toy music player to play her choice of music. I ended up using a Waveshield as an SD card reader, player, and amplifier, a Mintyboost to power the whole thing from the toy’s existing 2xAA cell holder, and an Arduino Pro Mini 328 as the CPU.

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