PIC18F4550 | Microcontroller › PIC › PIC18F4550 This topic has 1 reply, 2 voices, and was last updated 9 years, 4 months ago by Vara Ashishkumar. Viewing 2 posts - 1 through 2 (of 2 total) Author Posts May 4, 2015 at 12:24 pm #3660 WaltenioParticipant How to interface LCD with PIC18F4550 Microcontroller is a very good tutorial.I try it in Proteus 8.1 and works fine. But, when I build protoboardwith LCD JHD162A and PIC18F4550 doesn't works. What can go wrong? May 8, 2015 at 6:07 am #12866 Vara AshishkumarParticipant does you connect potentiometer with LCD for contrast purpose? Author Posts Viewing 2 posts - 1 through 2 (of 2 total) You must be logged in to reply to this topic. Log In Username: Password: Keep me signed in Log In