Hi, I am trying to build an IR based transmitter and receiver. I have few questions I would like to ask:
1) Can it be done using any PIC? I have a good stock of 12f635
2) Is data transmitted by simply flashing led at 38-40kHz and controlling the time between each burst?
3) Is 0 & 1 are the only type we can send - like for eg 38kHz for 12mS=0 & 38kHz for 30mS=1 or more data can be incorporated

By knowing this I can atleast know how to proceed about it
Thanks