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HP Forum Archive 02

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"NUM LOCK" program for the HP48...
Message #1 Posted by Tal on 9 Apr 2000, 5:32 a.m.

Hello everybody,

I am looking for a "NUM LOCK" program for the HP48, I mean that the program runs infinitely and waiting for a sequence of 4 known numbers, then it outputs one character to RS232 that causes the door to open for example.

Best regards, Tal. email:

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