I got a $1 keyboard (Logitech ERGO K860 Wireless Split Keyboard) at a garage sale that's worth quite a bit more than that and would like to use it. But the batteries didn't make any contact and just slid back and forth.
On closer inspection, idk if there's even metal terminals in this thing. I...
i have a laser keyboard and the projector inside it is really weak I can’t see anything unless i put it’s really close to the surface that’s it’s at which makes it impossible to use , the projector used to work fine and it still works but it isn’t strong enough for the eye to see.
Any help or...
I sometimes use a gaussmeter to measure the magnetic fields around my computer, keyboard, mouse, and headphones (all wired directly into the computer).
The strange thing is that in some houses I've lived, there's virtually no magnetic field at all, while in other houses, there's an extremely...