Lcd Pin Diagram And Description. Connected to the ground of the mcu power source. We send the ascii codes is sent to the lcd to display numbers and letters for the letter a z a z and numbers 0 9 to these pins while masking rs1.
Enable pin is for starting or enabling the module. Rs0 for command register whereas rs1 for data register. This display also has an led for backlighting which is powered usually through a basic character lcd pins 15 and 16.
The 8 bit data pins d0 d7 are used to send information to the lcd or read the contents of lcds internal register.
Let us look at a pin diagram of a commercially available lcd like jhd162 which uses a hd44780 controller and then describe its operation. The following paragraph is taken and included from muhammad ali mazidi to display letters and numbers we send ascii code for the letters a z a z and numbers 0 9 while making rs1. 162 lcd pinout. It is mini size computer used mostly to run larger and smart programs to achieve output quickly.