| Author | Message | ||
     Anonymous |
How about a computer controlled device that uses an infrared LED instead of an oscillator? | ||
| Anonymous |
I have done this, but how can I get the transmission to go farther, like a tv remote. | ||
| Simon Quellen Field (Sfield) |
Use a transistor or a hex inverter to amplify the signal. The serial port does not source very much current. But it can turn on a transistor, which can then power the LED. Likewise, the serial port can be used as the input to a hex inverter. If you tie all of the inputs together, and all of the outputs together, the hex inverter can source much more current than the serial port can. | ||
| Anonymous |
Can this be accomplished with the sound port? Because I have also tried sending morse code over an infrared LED through the speaker port and sent it to another computer with a reciever LED. Pretty cool. I have even used a regular LED. |
