IR Led and 555 timer

Hello guys,I need help on using 555 timer...how can I make the 555 timer generate 38 Khz for the IR led,could anyone tell me what extra parts I need like for example what resistors to use

What does this have to do with Robotics? With the Arduino? This isn't the homework hotline.

Hi Eagle3ye,
I have a Diptrace schematic I can let you have, Diptrace is a super PCB/Schematic design program and completely FREE, but I can also do it as a PDF file too. My first robots used IR for object detection..... If I was doing it now I would get the Microcontroller to produce the 38KHz via PWM. I mostly use Ultrasonics now.

@PaulS, that was a little unkind, it could have a lot to do with BOTH!!

Here's the Schematic, (Can't get the PDF printer to work??). Hope it helps.
Regards.
Mel.

Buggy-IR-115122012.dch (46.4 KB)

Well...it has to do with both Arduino and Robotics since I will use three of it to make a Sumo Robot

Hi Eagle...
I managed to get the Schematic converted to a PDF file, so hear it is.

Hope it helps.
Regards
Mel.

IR-Buggy-1.pdf (28 KB)