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Thanks everyone for their suggestions, but i think my code just doesnt work.
When i press the * key, infinite amount of * displays out on the LCD
Does anyone know how to solve the problem
My way of scanning is refered on this website ...
Im using pickit3
I single step the code and the output voltage is 4.8V which is normal
I guess the problem is the infinite loop haha...
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Hi can you give me an example of how to write an the interrupt? and which port should i use?
To receive input from my 4x4 keypad i need 4...
My 4x4 keypad must receive a high digital input of 1 which is PORTD,
and reading the output of the keypad is PORTC
problem is with PORTD outputing only 0.7V
Thanks for the recommendation, i will look into interrupts. :)
Hi
i have a problem i hope you could help me. :)
im interfacing a 4x4 keypad with an lcd for password detection
my pic16f877a pic have a infinite loop while waiting for an input
causing my i/o port's output voltage to be only 0.7V
can u tell me how to solve the output voltage problem, its at...
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