Yet another project..
Hi all, I'm new to this forum.. Would like to continue this topic:
From what I've learnt, the PIC 16FXXX series has only a total of 13 I/O pins. In that case, if I'm using a 4x4 keypad + transmitting modules (switchable IR/RF) that means I've already used up 8 of the 13 I/O pins.
Thus, how am i able to create password entry/editing for the microcontroller with juz 5 pins left? That's assuming i will require an LCD screen for display purposes (and mabbe add on to user-friendliness?)
Thanks for your time!