Luke Paireepinart wrote:
I believe it makes the circuit a little more complicated,
Yes, you need a diode for each key. Not hugely expensive, but I guess most manufacturers don't consider it worth the bother for a feature that usually isn't needed. -- Greg Ewing, Computer Science Dept, +--------------------------------------+ University of Canterbury, | Carpe post meridiem! | Christchurch, New Zealand | (I'm not a morning person.) | [EMAIL PROTECTED] +--------------------------------------+