Need help to design this serial interface

Discussion in 'The Projects Forum' started by mailus, Oct 3, 2012.

  1. mailus

    Thread Starter New Member

    Jun 16, 2012
    I need a lcd display like these
    configuration. The LCD
    Module can be set to receive
    and display serial data (TTL/
    CMOS) at 300, 1200, 2400 and
    9600 baud (true or inverted,
    switch selectable).
    Lcd 4*20 characters. any pic microcontroller
    Or give some hints.
  2. lowprofile


    Oct 31, 2011
    You want a RS232 compatible dumb terminal? I've done that. Once you have the LCD working with the microcontroller, use a MAX232 (or similar) to acquire the input, feed it into the micro's UART, and write a program to display the received character on the LCD.

    Making it look nice, wrap around, scroll, etc, is just more coding. I did not require that functionality so I can't comment on what's required.

    On the other hand, if you just want to send characters to an LCD serially, you can use a shift register, or you can buy an "LCD serial backpack"