HomeMy first TK project, a wall-wart sized device that plugs into a wall and plays audio from a sd/mmc card to a mono speaker, completely self contained. No track selections, no LCD, not even a power switch. Volume is about all I want. I want to make several of these little babies and spread them through-out the office and my apartment with sounds from the beach. So soothing.
So I found some super cheap MP3 SD player ($5) and some super cheap PC speakers ($7). I figured I could just take it from there. My flaw was in power, the MP3device's interface is horrible and requires several button presses to get to play. Infinite repeat is even worse. So, if the power goes out, or I have one attached to a switch, it's a pain to get going again. The device I want should 'just work'.
It's back to the drawing board, and it looks like I'm going to need an audio player that i can program at a much lower level than an off the shelf consumer device. Any suggestions? The key here is cheap (I want to make 20 or so)...
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It's probably not cheap enough but the WaveShield (http://www.adafruit.com/index.php?main_page=product_info&cPath=17_21&products_id=94) for the Arduino is pretty cool. I think it only plays 22k 16-bit mono wav files but you have a lot of flexibility regarding what plays and when. I built mine a week or so ago but I'm still waiting for a small SD card to come in the post before I can use it.
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