Just a late addition to this thread, interested people may like to look at = the User Guide for a new Wireless Security Remote Control Development Kit .= ... http://ww1.microchip.com/downloads/en/DeviceDoc/41646A.pdf Features a key fob using the 12LF1840T39A ... --=20 Scanned by iCritical. --=20 http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist .