Originally posted by Melanie
I think you should break-down this project into little stages. One of the most important is your Keypad entry routine - since the whole project rotates around that. To give you a helping start, tell me what kind of keypad is it... one of those where you scan Rows/Columns or one of those with a common pin and you then have one invidual pin for each button.

my keypad is a 4*4 rows/columns ,
row=rb0 ->rb3
columns= rb4->rb7
but my code is correct or scrap ?