Thank you mr.heckler ...it is realy good site and i got some good ideas from it ...and i traid to write code .. but the main proplem is that thair codecs depend on known ir protocol like sony or rc5 but my need is treating with unknown ir protocol (from any remot control) .................realy i spend 10 hour in one set on net and i failed ....thair are many projects about ir dimmer circuit depend on the same idea but the programmers execuse about orginal code and offer just hex file