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latest update: it seem that there is a problem with the switch or something, i change the way the switch connect to the pin(5V-->10k resistor-->pin C1) and it magically worked. I do not know why ...

i edited the code above, i believe it was something to do with the 1st infinite loop. do i have to add a "else{" after the code below? or it will automatically go to the lower part when the ...

thank for all the inputs, Very Happy

. it seems that after some checking, i found out that my reed switch is dead, and that is what been causing the problems. However, with the old issue solved, i now ha ...

update: I tried the push button. It worked inconsistenly, sometimes it just run off to another function, displaying other output from other functions, but the magnetic reed is still having some proble ...

First off, I would like to thank you all for the reply, I will try to isolate the switch part. I will update with the latest result later.

edit:i think my compiler is ver4.068

Hi, recently I build a security system which involves locking, unlocking, and password changing with the use of PIC16F877A. The code for the software goes quite well, until when I try to add in a magn ...