Hello shaiqbashir!
I used Hitachi style parallel LCD. As I understood you have serial LCD, it can be connected to PICs without problem , but you need to define , port ,pin, baud rate, and other protocol parameters. You can use SEROUT, SEROUT2 and DEBUG commands. DEBUG command is a bit more complicated as it’s involve DEFINE statements. Please check up PIC Basic PRO manual.
As your second question, frankly speaking I’m not I2C bus expert; I just began to learn it two-three weeks ago. I cannot give you comprehensive answers. It is all I know, some microcontrollers has designated I2C pins, and I used such PIC. I really don’t know how will work PICs without designated pins.
Good luck in your experiments
Vlad
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