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Wow, didn't really expect you to read this far down. The latest iteration of the site is in open beta. It's a gentle open beta-- not in prime-time just yet. It's being hosted over at UpGuard (link) and you are more than welcome to give it a shot. Couple things:
Usefull as a light blink to remember events, mails, intrusions, etc... yet another output
Since nobody ever uses the scroll lock function...
Usefull to interface a linux system with some hardware, for example, opto interfacing the keyboard led to a relay to remotely reset, etc. ( a simple LDR glued over the LED will do the trick )
xset led 3 turns on the third led, ie, Scroll lock
xset -led 3 turns it off
xset led 1 turns on Numerical Lock led ( doesn t work on all computer )
xset led 2 turns on Caps Lock led ( idem )
Using it as a reset watchdog, the relay expected light pulses. Shall the computer hangs, the relay releases and reset the machine ( discharge of a capacitor ) ;-)
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