There's a brief mention of using a 555 timer chip to generate an IR carrier in this thread: http://www.arduino.cc/cgi-bin/yabb2/YaBB.pl?num=1230504931
There's a brief mention of using a 555 timer chip to generate an IR carrier in this thread: http://www.arduino.cc/cgi-bin/yabb2/YaBB.pl?num=1230504931