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Keyboard LEDS (Without the Keyboard??)

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2[H]4U
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Jun 12, 2001
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Can I use just the PS/2 Keyboard Control board (The board with the LEDs and the keyboard IO Chip) Without the actual keys connected? I ask because I have a wireless Keyboard and mouse that has no status LEDs. I have an 'Extra' ps/2 port since the keyboard/mouse combo uses USB. I was just wondering before I destroy one of my 'spares just for the LED board
 
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It probably depends on the specific keyboard in question, but having disassembled a few, I'd say that it's highly likely that it will work just fine without the keys. That being said, I can't say for sure whether hitting NumLock on the wireless keyboard will turn on the LED on the wired one.
 
Back when Xoxide was selling these, I bought a few to do LED mods with. With this particular PS/2 model (and probably others) the lights are controlled by the computer so they are affected by other keyboards as well. The controller board works without the keys just fine.
 
I have a USB keyboard plugged into my laptop. When I hit caps lock on the laptop keyboard the LED on the USB one illuminates and vice versa. So I would assume it would work with a wireless keyboard and PS2 keyboard LED PCB.
 
DumpsterDiver727 said:
Punctuation and run on sentences need to be fixed. I refuse to read passed the first line, sorry.
Click to expand...

....that's "past", actually.....:p

Back on topic, it really depends on the BIOS. Some machines handle two keyboard controllers just fine, some only recognize the first one they initialize.

I'd start by plugging in two keyboards and seeing what happens.
 
I used a keyboard controller thing from a USB keyboard in a NES controller for emulators, it works fine. You just gotta look at where the keys connect, as some keyboards have different pinouts as far as the connection between the keys and the controller.
 
I agree with BBS, try it with the USB and a PS/2 keyboard first before you rip anything apart. I honestly have no idea what to expect.
 
Elledan said:
I agree with BBS, try it with the USB and a PS/2 keyboard first before you rip anything apart. I honestly have no idea what to expect.
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It will probably work. All the developer boxes here at work have 2 keyboard, and 2 mice, so it's easier to do pair-programming. Never had an issue with it on quite a few different types of systems. Numlock/etc led's change on both keyboards too.
 
extide said:
It will probably work. All the developer boxes here at work have 2 keyboard, and 2 mice, so it's easier to do pair-programming. Never had an issue with it on quite a few different types of systems. Numlock/etc led's change on both keyboards too.
Click to expand...

Interesting :) Sounds like really eXtreme Programming, BTW ;)
 
BlindedByScience said:
....that's "past", actually.....:p

Back on topic, it really depends on the BIOS. Some machines handle two keyboard controllers just fine, some only recognize the first one they initialize.

I'd start by plugging in two keyboards and seeing what happens.
Click to expand...

I think he meant refused to read past.

He just 'accidentally' moved the 'ed' from refuse to past.
 
i run 2 keyboards at the same time all the time. the lights match up 100% of the time as well as everything working the way it should.
 
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