#include <stdio.h>
#include "pico/stdlib.h"
#include "hardware/i2c.h"
#include "hardware/timer.h"
#include "hardware/clocks.h"

// I2C defines
// This example will use I2C0 on GPIO8 (SDA) and GPIO9 (SCL) running at 400KHz.
// Pins can be changed, see the GPIO function select table in the datasheet for information on GPIO assignments
#define I2C_PORT i2c0
#define I2C_SDA 8
#define I2C_SCL 9

int64_t alarm_callback(alarm_id_t id, void *user_data) {
    // Put your timeout handler code in here
    return 0;
}



int main()
{
    stdio_init_all();

    // I2C Initialisation. Using it at 400Khz.
    i2c_init(I2C_PORT, 400*1000);
    
    gpio_set_function(I2C_SDA, GPIO_FUNC_I2C);
    gpio_set_function(I2C_SCL, GPIO_FUNC_I2C);
    gpio_pull_up(I2C_SDA);
    gpio_pull_up(I2C_SCL);

    // Timer example code - This example fires off the callback after 2000ms
    add_alarm_in_ms(2000, alarm_callback, NULL, false);


    puts("Hello, world!");

    return 0;
}