Add a Caps Lock LED to your keyboard

[@OneSwitch]

What a great idea. My keyboard is infuriating at times with password entry when I get the case wrong. Will definitely look into this.

[@DavidCabanis]

My dad is almost blind but he needs to be able to use a keyboard. I am thinking about connecting a mp3 module to the rp2040 and have it voice the key that is pressed. Do you think this would work?

[@JamesMohler-c8m]

It is much easier just to use a piece of freeware, like Keyboard-LEDs, that shows the state of Caps-, Num- and Scroll-lock keys on the taskbar. And it works on laptops too.

[@jfedor]

This works on laptops too.

[@fuwingpang5445]

Why?

[@jfedor]

So that you know when Caps Lock is on.

[@PercyPanleo]

Some keyboards (Such as the ThinkPad Trackpoint USB keyboard) don't have indicators for caps lock for some bizarre reason, so this is able to work around that.