#include "pico/stdlib.h"
#include "lcd_display.hpp"

int main() {
    // Initialize stdlib and GPIO pins
    stdio_init_all();

    // LCD pin setup (adjust pin numbers to match your setup)
    const uint DATA_PIN = 7;    // Example GPIO pin for data
    const uint RS_PIN = 5;      // Example GPIO pin for Register Select
    const uint EN_PIN = 6;      // Example GPIO pin for Enable
    const uint CHAR_WIDTH = 16; // Example character width
    const uint NUM_LINES = 2;   // Example number of display lines

    // Create an LCD display control object
    LCDdisplay lcd_ctrl(DATA_PIN, RS_PIN, EN_PIN, CHAR_WIDTH, NUM_LINES);

    // Initialize the LCD display
    lcd_ctrl.init();

    // Main loop
    while (true) {
        // Display first message
        lcd_ctrl.clear();
        lcd_ctrl.setCursor(0, 0);
        lcd_ctrl.print("HELLO WORLD - Nabin");
        sleep_ms(2500); // Display for 2.5 seconds

        // Display second message
        lcd_ctrl.clear();
        lcd_ctrl.toggleCursor(); // Toggle cursor visibility
        lcd_ctrl.print("0123456789ABCDEF BYE");
        sleep_ms(2500); // Display for 2.5 seconds

        // Optionally toggle cursor visibility back
        lcd_ctrl.toggleCursor();
    }

    return 0;
}


pico_lcd_example.cpp

diagram.json

# Generated Cmake Pico project file

cmake_minimum_required(VERSION 3.13)

include(pico_sdk_import.cmake)

project(LCDexample C CXX ASM)

pico_sdk_init()

# Add executable. Default name is the project name,
add_executable(LCDexample pico_lcd_example.cpp)
add_subdirectory(../lcd_display build)

pico_add_extra_outputs(LCDexample)
target_link_libraries(LCDexample pico_stdlib lcd_display)


CMakeLists.txt

#ifndef LCD_DISPLAY_HPP
#define LCD_DISPLAY_HPP

#include "hardware/gpio.h"
#include "pico/stdlib.h"

class LCDdisplay {
private:
    uint data_pin;    // Pin connected to the data line of the LCD
    uint rs_pin;      // Pin connected to the Register Select of the LCD
    uint en_pin;      // Pin connected to the Enable line of the LCD
    uint char_width;  // Number of characters per line
    uint num_lines;   // Number of lines of the display

    void pulseEnable();    // Pulse the Enable pin
    void sendCommand(uint8_t command);    // Send command to the LCD
    void sendData(uint8_t data);          // Send data (character) to the LCD

public:
    // Constructor
    LCDdisplay(uint data, uint rs, uint en, uint width, uint lines);

    // Initialization and basic commands
    void init();           // Initialize LCD
    void clear();          // Clear LCD display
    void setCursor(uint col, uint row);  // Set cursor position
    void print(const char *str);  // Print string to LCD
    void toggleCursor();   // Toggle cursor visibility
};

#endif // LCD_DISPLAY_HPP
