For those interested in my Arduino-based pendant project I've finished the first draft of a PCB with support for a 25-key matrix, an encoder, and an LCD. I posted some details here along with PDFs of the schematic and board layout. If anyone here would like the original Eagle files, just drop me an email and I will be happy to share them.
http://ckcnc.wordpress.com/2010/12/13/board-design-sanity-check/ Once I get the order out to the fab house for this I am going to go back to the software part of this and work on making my Arduino sketch and Python module code a bit more acceptable for public viewing. My first thought is to make a simpler version that just allows you to push values in or out of the Arduino without the use of any matrix scanning or LCD display stuff. This would make it easier for people to use them to build more traditional pendants with still pretty decent functionality. I've also looked into getting membrane keypads made for this. The short story is that they won't save much on the cost unless (a) I can order at least 100 units or so *and* (b) I get them made in China by the lowest bidder. I've been experimenting with an inkjet-printable vinyl plus a transparent overlay and it seems to give a pretty nice feel, and would enable anyone to print their own overlay specific to their needs. The material is about a buck a sheet, only catch as usual is you're in for about $30 for the minimum order, so if I get around to selling boards I'll probably throw in a few sheets of this with them. ------------------------------------------------------------------------------ Lotusphere 2011 Register now for Lotusphere 2011 and learn how to connect the dots, take your collaborative environment to the next level, and enter the era of Social Business. http://p.sf.net/sfu/lotusphere-d2d _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
