LCD always has been an important part of an embedded project. Make sure you connect them with right pins.
VEE pin is connected to variable resistor for contrast adjustment. RS pin is Register select and used to select data or command mode. EN pin is Enable.
DB0 to DB7 are data pins. This helps in saving 4 pins of the controller for some other purposes.
A First we need to write the functions to send the command and data to the lcd. Here is how to do that. B Now we need to initialize LCD in 4 bit mode by sending some specific set of commands. ARM , arm7 , Embedded , lpc No Comments.
Here is how to do that 2. Do the same thing with data- send it separately in 4 bits. Notify of.
LPC2148 - INTERFACING 16 x 2 LCD