set the password using keypad 3x4
elyasfy
Posts: 2
im using for my graduation project a keypad with 3 colum and 4 row
i already do the configration but i dont know how to set the pasword
for example when im using if statment
it accept password "12" and "21" and its not taking it digit by digit
this is my code
please help
i already do the configration but i dont know how to set the pasword
for example when im using if statment
it accept password "12" and "21" and its not taking it digit by digit
this is my code
please help
keypad:
DO
HIGH 2
LOW 4
LOW 6
LOW 7
IF (IN3=1) THEN 'for row 1
a=1
DEBUG "1"
PAUSE 100
ELSEIF (IN1=1) THEN
a=2
DEBUG "2"
ELSEIF (IN5=1) THEN
a=3
DEBUG "3"
ENDIF
PAUSE 100
Raw2:
HIGH 7 ' for row 2
LOW 2
LOW 4
LOW 6
IF (IN3=1) THEN
a=4
DEBUG "4"
ELSEIF(IN1=1) THEN
a=5
DEBUG "5"
ELSEIF(IN5=1) THEN
a=6
DEBUG "6"
ENDIF
PAUSE 100
Raw3:
HIGH 6 'for row 3
LOW 4
LOW 7
LOW 4
IF (IN3=1) THEN
a=7
DEBUG "7"
ELSEIF(IN1=1) THEN
a=8
DEBUG "8"
ELSEIF (IN5=1) THEN
a=9
DEBUG "9"
ENDIF
PAUSE 100
Raw4:
HIGH 4
LOW 6
LOW 7
LOW 2
' for row 4
IF (IN3=1) THEN
a=$2A
DEBUG "*"
ELSEIF (IN1=1)THEN
a=0
DEBUG "0"
ELSEIF(IN5=1) THEN
a=$23
DEBUG "#"
GOTO confirm
ENDIF
PAUSE 100
LOOP
confirm :
IF (a=1) THEN
GOTO second
ENDIF
second:
IF (a=2) THEN
GOTO correct
ELSE
GOTO show
ENDIF
correct:
DEBUG "Door Open"
PAUSE 2000
GOTO main ' the right password
show :
DEBUG "wrong password"
PAUSE 2000
Comments
You may want to try some like this
One VAR IN0
TWO VAR IN1
IF One = 1 THEN ' What ever you want to do
You may also want to try some like this
IF One = 1 THEN
IF Two = 1 THEN
' You code here
ELSE
IF it dose not match then what to next
This would give you the first two # 12
i need a sequence 124 for example using var
A lot depends on how you want the keypad to behave. How does the user indicate that the password is beginning or ending? With a 3x4 keypad, the extra two keys are often used to indicate "clear" and "enter". Is that what you want? Do you want the keypad to timeout? In other words, clear itself after a specific period of time. Do you want to process the password as it's entered or wait for the whole thing to be entered before processing? What's the maximum number of digits in the password? Is the number of digits fixed? You need to say more about the kind of behavior you want for your password keypad.