1602 LCD Module Shield with I2C Interface, 2x16 Character Display, or Yellow-Backlight, 5V and Pi D
To run the simulation, you will need the LiquidCrystal_I2C library in your Arduino IDE.
void setup() lcd.init();lcd.backlight();lcd.setCursor(0, 0);lcd.print("Proteus Test");lcd.setCursor(0, 1);lcd.print("Free Library OK"); void loop() // Static display Step 5: Running the Simulation Compile your code and export the .HEX file. Double-click the microcontroller in Proteus.
Connect the components on your schematic canvas according to the standard I2C backpack configuration: jhd2x16i2c proteus free
Address pins (A0, A1, A2) on the PCF8574 should be tied to VCC or GND to establish the binary address (tying all three to VCC sets the address to 0x27 ). P0 →right arrow RS (Register Select) P1 →right arrow RW (Read/Write) P2 →right arrow E (Enable) P3 →right arrow
The standard LM016L or JHD162A models in Proteus use 16 pins (Parallel). They do not natively support the 2-pin I2C interface (SDA, SCL).
: The virtual display will light up and display "JHD2X16I2C Test" on the first line and "Proteus Free Sim" on the second line. Troubleshooting Common Simulation Errors 1602 LCD Module Shield with I2C Interface, 2x16
: Even in simulation, ensure the VCC and GND pins are logically connected.
A: Almost always, this is an I²C address mismatch. Verify that the address in your code (e.g., 0x27 ) matches the model's default ( 0x7C ).
If you would like, please let me know you are using (Arduino, PIC, or 8051) or if you need help mapping the specific hex addresses for your project. Share public link Connect the components on your schematic canvas according
Connect the PCF8574 to the LM016L exactly as shown below. This replicates the wiring inside a standard I2C LCD module.
Look at the bottom console log of Arduino IDE and copy the file path ending in .hex . Double-click your microcontroller component inside . Paste the copied path into the Program File property slot.