What Is RS And RW In LCD?

- Jul 18, 2019-

The LCD controller uses RS and RW lines along with E to operate the LCD. Resister Select (RS): Determines weather a command(RS = 0) is sent (to set up the display) or actual data(RS=1) is sent. Read/Write RW=0; writes to the LCD. RW=1;Reads from the LCD.