I built a simple keyboard matrix with a "scanner": http://tinyurl.com/yanykyws http://tinyurl.com/yanykyws That LED represents a something (probably firmware o

I built a simple keyboard matrix with a "scanner": http://tinyurl.com/yanykyws http://tinyurl.com/yanykyws That LED represents a something (probably firmware on the keyboard) reacting to the switch being pressed by a user. Edit: I used a decade counter with a 5 col matrix for simplicity. I was using a 4 bit binary counter, but the browser started really bogging down with a bunch of components.