lcd.createChar()

[LiquidCrystal]

描述

Create a custom character (gylph) for use on the LCD. Up to eight characters of 5×8 pixels are supported (numbered 0 to 7). The appearance of each custom character is specified by an array of eight bytes, one for each row. The five least significant bits of each byte determine the pixels in that row. To display a custom character on the screen, write() its number.

NB : When referencing custom character “0”, if it is not in a variable, you need to cast it as a byte, otherwise the compiler throws an error. See the example below.

語法

lcd.createChar(num, data)

參數

• lcd: a variable of type LiquidCrystal
• num: which character to create (0 to 7)
• data: the character’s pixel data

範例

#include <LiquidCrystal.h>
 
LiquidCrystal lcd(12, 11, 5, 4, 3, 2);
 
byte smiley[8] = {
  B00000,
  B10001,
  B00000,
  B00000,
  B10001,
  B01110,
  B00000,
};
 
void setup() {
  lcd.createChar(0, smiley);
  lcd.begin(16, 2);  
  lcd.write(byte(0));
}
 
void loop() {}

函式庫參考主頁面

86Duino 參考的文本是根據 Creative Commons Attribution-ShareAlike 3.0 License，部分文本是從 the Arduino reference 修改的。 參考中的代碼示例已發佈到公共領域。