On Fri, Jun 3, 2011 at 2:58 PM, Charles Craft wro= te: > I think the complexity with wireless comes with understanding the FCC rul= es. > The dirt cheap modules probably aren't certified. > And the certified modules are suspect depending on how they're packed > into the final product. You're correct. The MRF24J40MA is one of the cheapest FCC certified modules, at around $8 a piece (last I checked) If you're going to sell 10,000 units you can go much cheaper by rolling your own. Time to market will be longer. --=20 Martin K. --=20 http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist .