Jhd-2x16-i2c Proteus [repack] -

This indicates the LCD layout did not receive the correct 4-bit initialization sequence. Verify that your code library's pin mappings (RS, RW, E) perfectly match the physical connection lines hooked up between your PCF8574 and your LM016L component.

If you've wired it up and see a backlight but no text, you're likely facing the same hurdles others have documented: Library Mismatch : The standard LiquidCrystal_I2C jhd-2x16-i2c proteus

In simulation and practice, using this display via I2C requires an I/O Expander backpack. The most common chip used for this is the . This indicates the LCD layout did not receive