当前位置:首页 > 科学研究 > 电子编程 > 正文内容

Arduino Project 023B - Liquid Crystal Displays -Blink and Cursor

RonWang1年前 (2024-11-05)电子编程826

Before wiring the LCD screen to your Arduino board we suggest to solder a pin header strip to the 14 (or 16) pin count connector of the LCD screen, as you can see in the image further up.

To start with, you will create a demonstration project that will show off most of the functions available in the LiquidCrystal.h library. To do so, you’ll use a backlit 16x2 LCD Display. 

To wire your LCD screen to your board, connect the following pins:

  • LCD RS pin to digital pin 9

  • LCD Enable pin to digital pin 8

  • LCD D4 pin to digital pin 5

  • LCD D5 pin to digital pin 4

  • LCD D6 pin to digital pin 3

  • LCD D7 pin to digital pin 2

  • LCD R/W pin to GND

  • LCD VSS pin to GND

  • LCD VCC pin to 5V

  • LCD LED+ to 5V through a 220 ohm resistor

  • LCD LED- to GND

Project 23B-1 Liquid Crystal Displays -Blink

/* Coding Ron Wang
   Oct.24th 2024
   Autaba support for coding hardware
   Project 23B  Basic LCD Control - Blink
 */
 
#include <LiquidCrystal.h>
// Initialize the library with the numbers of the interface pins
const int rs = 9, en = 8, d4 = 5, d5 = 4, d6 = 3, d7 = 2;
LiquidCrystal lcd(rs, en, d4, d5, d6, d7);
void setup() {
  // set up the LCD's number of columns and rows:
  lcd.begin(16, 2);
  // Print a message to the LCD.
  lcd.print("Hello, World!");
}
void loop() {
  // Turn off the blinking cursor:
  lcd.noBlink();
  delay(3000);
  // Turn on the blinking cursor:
  lcd.blink();
  delay(3000);
}

Project 23B-2 Liquid Crystal Displays -Cursor

/* Coding Ron Wang
   Oct.25th 2024
   Autaba support for coding hardware
   Project 23C  Basic LCD Control- Cursor
 */
 
#include <LiquidCrystal.h>
// Initialize the library with the numbers of the interface pins
const int rs = 9, en = 8, d4 = 5, d5 = 4, d6 = 3, d7 = 2;
LiquidCrystal lcd(rs, en, d4, d5, d6, d7);
void setup() {
  // set up the LCD's number of columns and rows:
  lcd.begin(16, 2);
  // Print a message to the LCD.
  lcd.print("Hello, World!");
}
void loop() {
  // Turn off the cursor:
  lcd.noCursor();
  delay(500);
  // Turn on the cursor:
  lcd.cursor();
  delay(500);
}

Project 23B-3 Liquid Crystal Displays - Set Cursor

/* Coding Ron Wang
   Oct.27th 2024
   Autaba support for coding hardware
   Project 23E  Basic LCD Control- Set Cursor Example
 */
 
#include <LiquidCrystal.h>
// Initialize the library with the numbers of the interface pins
const int rs = 9, en = 8, d4 = 5, d5 = 4, d6 = 3, d7 = 2;
LiquidCrystal lcd(rs, en, d4, d5, d6, d7);
// these constants won't change.  But you can change the size of
// your LCD using them:
const int numRows = 2;
const int numCols = 16;
void setup() {
  // set up the LCD's number of columns and rows:
  lcd.begin(numCols, numRows);
}
void loop() {
  // loop from ASCII 'a' to ASCII 'z':
  for (int thisLetter = 'a'; thisLetter <= 'z'; thisLetter++) {
    // loop over the columns:
    for (int  thisRow = 0; thisRow < numRows; thisRow++) {
      // loop over the rows:
      for (int thisCol = 0; thisCol < numCols; thisCol++) {
        // set the cursor position:
        lcd.setCursor(thisCol, thisRow);
        // print the letter:
        lcd.write(thisLetter);
        delay(200);
      }
    }
  }
}

Arduino LCD 16X2 Control Autoscroll Circuit

Additionally, wire a 10k potentiometer to +5V and GND, with it's wiper (output) to LCD screens VO pin (pin3).

Arduino LCD 16X2 Control Autoscroll

版权声明:本文为原创文章,版权归donstudio所有,欢迎分享本文,转载请保留出处!

本文链接:http://www.autabarc.com/?id=275

标签: Arduino

相关文章

Arduino Project 003 - LED Traffic Light

Arduino Project 003 - LED Traffic Light

You are now going to create a set of traffic lights that will change from green to red, via amber, a...

Arduino Project 005 - LED Chase Lights

Arduino Project 005 - LED Chase Lights

You’re going to use a string of LEDs (10 in total) to make an LED chase effect, similar to that used...

Arduino Project 007 - Pulsating Lamp

Arduino Project 007 - Pulsating Lamp

You are now going try a more advanced method of controlling LEDs. So far, you have simply turned the...

Arduino Project 032 - BMP280 Pressure Sensor LCD Display

Arduino Project 032 - BMP280 Pressure Sensor LCD Display

For this project we will use Arduino Uno and BMP280 along with LCD 16x2 display module to display te...

Arduino Project 021 -  LED Dot Matrix Display - Scrolling Message

Arduino Project 021 - LED Dot Matrix Display - Scrolling Message

There are many different ways to drive LEDs. Using shift registers is one way and they have their a...

Arduino UNO Mp3音乐播放代码

Arduino UNO Mp3音乐播放代码

Arduino UNO Mp3音乐播放代码今天我们将使用Arduino UNO 和SD卡制作音乐播放器。这个播放器不需要添加多余的模块,只需要SD读卡器和Arduino UNO开发板就可以播放音频文件...