i'm currently designing a 15 channel rf pager . consisting of a tx - and = rx unit .. i was planning of using a pic16c84 or f with a keypad alpha = numeric like those found in a telephone set and two 7 segment displays = to disoplay from 0 to 15 . My idea is to punch the number ex 1 and 0 to form 10 , then pressing = the enter key the pic will output the binary data 0101 to the serial = encoder .. im using a ht 12 e from holtek .=20 I would appreciate if you could help me .. been looking on the net but = havn't found a schematic which has both keypad and display in one ..=20 Have you any suitable links .. any help will be greatly appreciated .. Regards Jason Markham -- http://www.piclist.com hint: The PICList is archived three different ways. See http://www.piclist.com/#archives for details.