Define a custom LCD character.
Constant representing the character (0-7).
The row values for the character.
You can use the LCD designer to build the characters.
- It is important that a CLS follows the DEFLCDCHAR statement(s).
So make sure you use the DEFLCDCHAR before your CLS statement.
- When using INITLCD make sure this is called before DEFLCDCHAR since it will reset the LCD controller.
Special characters can be printed with the Chr() function.
LCD Text displays have a 64 byte memory that can be used to show your own custom characters. Each character uses 8 bytes as the character is an array from 8x8 pixels. You can create a maximum of 8 characters this way. Or better said : you can show a maximum of 8 custom characters at the same time. You can redefine characters in your program but with the previous mentioned restriction.
A custom character can be used to show characters that are not available in the LCD font table. For example a Û.
You can also use custom characters to create a bar graph or a music note.
You cannot use Chr(0)-Deflcdchar 0 in any with any String Variables/Arrays, Chr(0) will be interpreted as a String terminator
and not as Custom Character for Deflcdchar 0 (Deflcdchar from 1 to 7 is fine).
Deflcdchar 1 , 225 , 227 , 226 , 226 , 226 , 242 , 234 , 228 ' replace ? with number (0-7)
Deflcdchar 0 , 240 , 224 , 224 , 255 , 254 , 252 , 248 , 240 ' replace ? with number (0-7)
Cls 'select data RAM
Rem it is important that a CLS is following the deflcdchar statements because it will set the controller back in datamode
Lcd Chr(0) ; Chr(1) 'print the special character