Matrix user forums

Hi
Does someone try to use the keypad 4*3 with PortB using 18F452
It's working in porteus , I connected the pull down resistor in my card but it doesn't work
Thanks

Here is an example code using Fcv4 for 4*3 keypad. If you can post the keypad schematic you are using; We can help you more.

I solved the half of the problem , it was problem of pull down
all the key work only colomn 2

the key of my keypad are not like normal keypad
that's why I had the problem
Thanks