First post, first teensy program so don't judge.
Finally got around to implementing an idea I had for some time - a HID password manager. No buttons, no screen, no soldering required. Plug it in and use your normal keyboard to control it. Not very useful for the offensive aspect of things, but not getting pwned is important, right?
It uses keyboard status leds for input: you press caps/scroll/num lock, the led turns on and teensy can act on that.
The way you would use it is:
Edit your login info in the source code
Compile and upload it to teensy (duh)
When you need to login, sele