LCD Custom Character

Question

I am experimenting the write((byte)num) function, and I stumble upon a pre-made custom character. Usually it's on above ((byte)200) or and below ((byte)10000). If anyone else know this, where could I find the list for a specific character?

Answer 1

Hi Welcome to Arduino StackExchange

You can build your own LCD characters if you spend some time with the datasheet and user manuals available

Arduino has a dedicated function here

#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() {}

here is one example: from our tool here

From the datasheet:

here is one example where a Heart symbol is created using the built-in Arduino LCD library:

You can play here at our LCD1602 simulator to get a hang of it. Please leave a message or comment if you have any questions :)