lcd1602模块化代码
时间: 2023-10-06 19:08:28 浏览: 49
以下是基于Arduino的LCD1602模块化代码示例:
首先,需要引入LiquidCrystal库:
```
#include <LiquidCrystal.h>
```
接着,定义LCD1602的引脚:
```
#define LCD_RS 12
#define LCD_EN 11
#define LCD_D4 5
#define LCD_D5 4
#define LCD_D6 3
#define LCD_D7 2
```
然后,初始化LCD1602:
```
LiquidCrystal lcd(LCD_RS, LCD_EN, LCD_D4, LCD_D5, LCD_D6, LCD_D7);
```
现在,就可以在setup()函数中设置LCD1602的列数和行数,并打印初始信息:
```
void setup() {
lcd.begin(16, 2);
lcd.print("Hello, world!");
}
```
在loop()函数中,可以使用lcd.clear()函数清除LCD屏幕,使用lcd.setCursor()函数设置光标位置,并使用lcd.print()函数打印信息:
```
void loop() {
lcd.clear();
lcd.setCursor(0, 0);
lcd.print("Line 1");
lcd.setCursor(0, 1);
lcd.print("Line 2");
delay(1000);
}
```
完整代码如下:
```
#include <LiquidCrystal.h>
#define LCD_RS 12
#define LCD_EN 11
#define LCD_D4 5
#define LCD_D5 4
#define LCD_D6 3
#define LCD_D7 2
LiquidCrystal lcd(LCD_RS, LCD_EN, LCD_D4, LCD_D5, LCD_D6, LCD_D7);
void setup() {
lcd.begin(16, 2);
lcd.print("Hello, world!");
}
void loop() {
lcd.clear();
lcd.setCursor(0, 0);
lcd.print("Line 1");
lcd.setCursor(0, 1);
lcd.print("Line 2");
delay(1000);
}
```