Hey Bruce http://www.jameco.com/webapp/wcs/stores/servlet/StoreCatalogDisplay?storeId=10001&catalogId=10001&langId=-1 jameco is the place to get your hardware. I would suggest an arduino if you want to use java. or a pic micro-controller if you like C. I would suggest programming it so anyone with a smart phone or a computer can run it. ,RJ -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://mailman.mn-linux.org/pipermail/tclug-list/attachments/20110208/b7fad932/attachment.html>