#include <stdio.h>
#include "pico/stdlib.h"
#include "hardware/uart.h"

// Define the UART0 TX and RX pins
#define UART0_TX_PIN 0  // GPIO0 is UART0 TX
#define UART0_RX_PIN 1  // GPIO1 is UART0 RX

int main() {
    // Initialize stdio for debugging over USB (optional)
    stdio_init_all();

    // Print to USB console (optional for debugging)
    printf("Starting UART0 Message Print...\n");

    // Initialize UART0 with the desired baud rate
    uart_init(uart0, 115200);

    // Set the GPIO pins for UART0
    gpio_set_function(UART0_TX_PIN, GPIO_FUNC_UART); // Configure GPIO0 as UART TX
    gpio_set_function(UART0_RX_PIN, GPIO_FUNC_UART); // Configure GPIO1 as UART RX

    // Set UART format (optional, default is 8N1)
    uart_set_format(uart0, 8, 1, UART_PARITY_NONE); // 8 data bits, 1 stop bit, no parity

    // Set FIFO threshold (optional)
    uart_set_fifo_enabled(uart0, true);

    // Print a message continuously on UART0
    const char *message = "Hello from Raspberry Pi Pico W!\n";

    while (true) {
        // Transmit the message via UART0
        uart_puts(uart0, message);

        // Add a delay for readability
        sleep_ms(1000);
    }

    return 0;
}