7th grader needs help with electronics design project

Keyboards are easy to clean: Two spray bottles, one with household ammonia, the other distilled water. Stand it up, almost vertical and spray a fine mist of ammonia to soften the crud. Let it sit for five to ten minutes and spray again. When the crud starts running off the keycaps and case, switch to the distilled water. Then let it dry for a couple days. I usually do a dozen at a time, so by the time I reach the last one, its time for the next round with a sprayer.

I've got several keyboards here - my main one was so dirty, you couldn't see the letters on the keys, which didn't bother me because I touch-type. But I had another one on another computer, that was relatively clean, but skipped some letters.

So, I washed them. Under a running very warm tap, with dish soap and a scrub brush. Rinsed them, took the air hose to them, and hung up to dry.

They're good as new. :-)

Cheers! Rich

My idea would be a "remote" that turns it off permanently. The "parts" required can be purchased at any gun dealer.

I've used Windex (same principle, I suppose). I've found that all the key caps have to come off too. The things crawling around amongst the keys is pretty disgusting. It's not all that easy to do right (and always leave a spare assembled).

Household ammonia is stronger, so I rarely have to remove the caps.

I do it long before I need the keyboard. When the box of dirty keyboards is full, it's time to do a batch.

Gotta pull the caps to get the hair and dead pizza from between the keys.

Gotta leave one assembled to figure out how to put the others back together. ;-) Kinda like the way I replaced brake shoes (though haven't done it in a decade or two).

If it's that bad you need an air compressor.

The only time I take a keyboard aprt is when it is dead, or has a large block of dead keys. I save the good cords from the dead keyboards, and sometimes I have a good spare when the cord is damaged.