Solar powered FM radio and mp3 player
Khaleel123 has posted an Instructable on how he built a solar-powered FM radio/mp3 player using some leftover wood flooring, salvaged pc speakers, four ni-cad rechargeable AA batteries, and inexpensive FM Radio/mp3 player module and solar panels that he bought on ebay. The FM radio module cost him less than $3 and is capable to play mp3 audio through an SD card or USB drive. Khaleel123 writes, The one I used has an operating voltage range between 5-12 and it is 4 ohm stable @ 3 watts rms x2. So knowing this its safe to use the following combination of components for the power source.
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