This is a general purpose serial port
infrared receiver. With the help of appropriate software
(see below) you can control different functions of your
pc from a distance. For example you can control your
home cinema settings (volume, play, pause, stop etc),
your winamp etc.
It uses for receiver TSOP 1738 (38 KHz)
but it worked well with TSOP 1736 (36 KHz) and a remote
Sony which works at 40Mhz.
The two transistors light up the led
when a signal is received. Any kind of led will fit |