Arduino · HD44780 · 8×8

Proof arduino-lcd8x8 2026-08-13 — HD44780 Custom Character Generator

Draw custom 8×8 icons for HD44780 LCD modules in your browser. Preview on a simulated 1602 or 2004 display, then copy the byte array or full Arduino sketch — no install, no account.

Custom Character Editor

8×8 pixel grid → HD44780 byte array

Pixel grid — click or drag (cols 2–6 = visible 5×8 LCD area)
Presets
LCD 1602 preview

HD44780 · 8×8 CGRAM · 5×8 visible per character

Arduino code 
byte customChar[8] = {0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00};
Full Arduino sketch snippet 

              

            


            

              
              
              
              
              
              
            

          

        

      


      

        
Guides

        

          

            
            
Arduino Uno Pinout

            
Wire your LCD 1602 to Arduino Uno — RS, E, D4–D7, VSS, VDD, and contrast pin explained.

            Read guide →
          

          

            
            
Custom Icons on LCD

            
Load byte arrays with createChar(), assign CGRAM slots, and display icons on row 0 or 1.

            Read guide →
          

          

            
            
Fix Compile Errors

            
Resolve common LiquidCrystal mistakes — wrong pins, missing #include, and CGRAM slot conflicts.

            Read guide →