MP3Car.com - View Single Post - FAQ: Fooling pc to think a keyboard is plugged in.

Knightofoldcode · 10-19-2006, 03:58 AM

Quote: Originally Posted by Termina

I guessed; stripped all four wires, and kept trying randomly. =) I figured red would probably be the 5v, and tried diffrent wires hoping one would be ground (unless that one wire w/o plastic covering is the ground?)

Do the colors vary from keyboard to keyboard?

Does the side the wire touches of the resistor matter?

Thanks!

While you were randomly tickling your computer, did you allow the PC to sit at the "keyboard not found" error, and just randomly try wire combinations? Because you have to reboot the computer after each random attempt.

No, red is probably not 5V+.

A simple resistor may or may not work with your computer/bios. On the old style AT keyboards, yes, 99% of the time it'll work. This method with the resistor may or may not work. I know for a fact it won't work on 99% of all server motherboards. However, desktop motherboards, and micro motherboards it's a %50/%50 chance it will work. Some motherboards are "smarter" than others, and actually talk to the keyboard, instead of sensing a voltage drop/lack of floating line.

There is a commercial solution. This is typically called a "dummy keyboard", there are many other types including, "dummy video", "dummy keyboard", "dummy mouse", etc. Search google, it's not easy to find on google, but you can find them. Here's a link for a intelligent dummy keyboard.

http://www.multibug.co.uk/keyboard_dummy.html

Knight.

10-19-2006, 03:58 AM	#24
Knightofoldcode Low Bitrate Join Date: Mar 2003 Vehicle: 2003 Convertable White Ford Mustang V8 Posts: 63 My Photos: ()	Quote: Originally Posted by Termina I guessed; stripped all four wires, and kept trying randomly. =) I figured red would probably be the 5v, and tried diffrent wires hoping one would be ground (unless that one wire w/o plastic covering is the ground?) Do the colors vary from keyboard to keyboard? Does the side the wire touches of the resistor matter? Thanks! While you were randomly tickling your computer, did you allow the PC to sit at the "keyboard not found" error, and just randomly try wire combinations? Because you have to reboot the computer after each random attempt. No, red is probably not 5V+. A simple resistor may or may not work with your computer/bios. On the old style AT keyboards, yes, 99% of the time it'll work. This method with the resistor may or may not work. I know for a fact it won't work on 99% of all server motherboards. However, desktop motherboards, and micro motherboards it's a %50/%50 chance it will work. Some motherboards are "smarter" than others, and actually talk to the keyboard, instead of sensing a voltage drop/lack of floating line. There is a commercial solution. This is typically called a "dummy keyboard", there are many other types including, "dummy video", "dummy keyboard", "dummy mouse", etc. Search google, it's not easy to find on google, but you can find them. Here's a link for a intelligent dummy keyboard. http://www.multibug.co.uk/keyboard_dummy.html Knight. __________________ This message transmitted with 100% recycled electrons. -=-=-=-=-=- Gravity doesn’t exist. The Earth sucks. -=-=-=-=-=- Make a man a fire, and he will be warm for the night. Light the man on fire, and he will be warm for the rest of his life.