Connect the SCL pin of the microcontroller to the SCL pin of the LCD.
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. jhd2x16i2c proteus free
Blank Screen: Ensure the "Backlight" command is sent in your code and that the VCC/GND pins are correctly powered in the simulation properties. Connect the SCL pin of the microcontroller to
Connect the SDA pin of the microcontroller to the SDA pin of the LCD. Blank Screen: Ensure the "Backlight" command is sent
Connect the debugger to the SDA/SCL lines to see the communication traffic in real-time. Step 4: Writing the Code (Arduino Example)
// Set the LCD address to 0x27 for a 16 chars and 2 line displayLiquidCrystal_I2C lcd(0x27, 16, 2);
Place the LCD: Place the JHD2X16I2C module on the schematic. Wire the I2C Bus: