16F872 and LCD

[Fredrick]

Hi Fredrick,

Double check that your LCD ground is connected to the PIC Vss (5V common) securely.
Check that your LCD Plus is connected to the PIC Vdd (5V plus).
Also check resistor pullup on PIC MCLR to Vdd. as Skimask suggested.

-Adam-

MCLR pull up is ok.

The LCD is connected to the same voltage regulator as the PIC but not directly connected to the VDD or VSS PIC pin.

The LCD is connected to this DEV board.
http://www.olimex.com/dev/pic-p28.html