Hi I'm new here. and I am currently doing a project on Toxic Gas Release Alarm system using PIC.
I'm using PIC16f84a and I have used several I/O pins for LEDs, speakers & a/d converters. and only I/O 6 pins left for LCD. (R0A,RB3-RB7). I'm using LCD Serial port with 8 pads
any ideas how I can connect the LCD to the PIC without using all the pads? can i just connect the lcd to the pic with 3 connection? vcc,vdd and serial data (RB7)? will that work?
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