Jhd2x16i2c Proteus Exclusive -

Right-click the PCF8574 → "Edit Properties" → Set "I2C Address" to 0x27 (hex).

Here is a standard working code snippet for Arduino (ATmega328) that proves the simulation works. This uses the popular LiquidCrystal_I2C library. jhd2x16i2c proteus exclusive

The standard LiquidCrystal_I2C library assumes a specific wiring pattern for the PCF8574 pins. You must connect the PCF8574 outputs to the LCD inputs exactly as follows, or the display will show garbage: Right-click the PCF8574 → "Edit Properties" → Set

To successfully simulate this "exclusive" piece, standard libraries may fail. You often need specialized drivers: Library Requirement : The standard LiquidCrystal library usually does not work. Use the DFRobot_RGB_LCD1602 DF Robot LCD Point H libraries for correct configuration. Installation Download the files for the JHD module. Place these files in the folder of your Labcenter Electronics directory (usually in Program Files). Use the DFRobot_RGB_LCD1602 DF Robot LCD Point H

Standard LiquidCrystal_I2C libraries often fail in Proteus. Use this :