1602液晶显示屏显示爱心的代码

下面是基于Arduino的1602液晶屏幕显示爱心的代码：

#include <LiquidCrystal.h>

LiquidCrystal lcd(12, 11, 5, 4, 3, 2);

byte heart[8] = {
  B00000,
  B01010,
  B11111,
  B11111,
  B11111,
  B01110,
  B00100,
  B00000
};

void setup() {
  lcd.begin(16, 2);
  lcd.createChar(0, heart);
  lcd.clear();
}

void loop() {
  lcd.setCursor(6, 0);
  lcd.write(byte(0));
  lcd.setCursor(7, 0);
  lcd.write(byte(0));
  lcd.setCursor(8, 0);
  lcd.write(byte(0));
  lcd.setCursor(9, 0);
  lcd.write(byte(0));
  lcd.setCursor(10, 0);
  lcd.write(byte(0));
  lcd.setCursor(6, 1);
  lcd.write(byte(0));
  lcd.setCursor(7, 1);
  lcd.write(byte(0));
  lcd.setCursor(8, 1);
  lcd.write(byte(0));
  lcd.setCursor(9, 1);
  lcd.write(byte(0));
  lcd.setCursor(10, 1);
  lcd.write(byte(0));
  delay(500);

  lcd.setCursor(4, 0);
  lcd.write(byte(0));
  lcd.setCursor(5, 0);
  lcd.write(byte(0));
  lcd.setCursor(6, 0);
  lcd.write(byte(0));
  lcd.setCursor(7, 0);
  lcd.write(byte(0));
  lcd.setCursor(8, 0);
  lcd.write(byte(0));
  lcd.setCursor(9, 0);
  lcd.write(byte(0));
  lcd.setCursor(10, 0);
  lcd.write(byte(0));
  lcd.setCursor(11, 0);
  lcd.write(byte(0));
  lcd.setCursor(3, 1);
  lcd.write(byte(0));
  lcd.setCursor(4, 1);
  lcd.write(byte(0));
  lcd.setCursor(5, 1);
  lcd.write(byte(0));
  lcd.setCursor(6, 1);
  lcd.write(byte(0));
  lcd.setCursor(7, 1);
  lcd.write(byte(0));
  lcd.setCursor(8, 1);
  lcd.write(byte(0));
  lcd.setCursor(9, 1);
  lcd.write(byte(0));
  lcd.setCursor(10, 1);
  lcd.write(byte(0));
  lcd.setCursor(11, 1);
  lcd.write(byte(0));
  lcd.setCursor(12, 1);
  lcd.write(byte(0));
  delay(500);
}

这个代码会在液晶屏上显示一个心形，每隔0.5秒钟闪烁一次。你需要将1602液晶屏连接到Arduino上，以便可以正常运行此代码。