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Here’s another one of our kits with instructions, up on Instructables –

This is an updated version of the detailed instructable by this device’s inventor, Ladyada. The updated version has some extra components. Also if you’re having trouble be sure to read the extra section in step 4 about modifying the MintyBoost to work with some newer MP3 players. (It’s quite simple).

MintyBoost! Kit V1.1 – Link & get on @ the Maker store.