While Proteus does not have a native "JHD-2x16-I2C" component, a functionally identical simulation is built by connecting an to a PCF8574 with proper pull-ups and contrast control. This setup perfectly emulates the I2C backpack behavior, allowing firmware development and testing without physical hardware. Using the LiquidCrystal_I2C library with address 0x20 (or 0x27 for many real modules) ensures code portability from simulation to physical deployment.
To get started, you’ll need to pick the right components from the Proteus library: jhd-2x16-i2c proteus
In Proteus, if using PCF8574 + LM044L , connect PCF8574’s P0–P7 to LM044L’s RS, RW, E, D4–D7 as per standard 4-bit mode. But the prebuilt LCD I2C model simplifies this. While Proteus does not have a native "JHD-2x16-I2C"
Proteus has a powerful tool. To use it:
void loop() // Scroll the second line lcd.setCursor(0, 1); lcd.print("Counter: "); lcd.print(millis() / 1000); delay(500); To get started, you’ll need to pick the