Real-Time Temperature Monitoring with ATmega2560, MCP9808, and Zephyr OS: Device Driver Not Found

#include <zephyr.h>
#include <device.h>
#include <drivers/i2c.h>
#include <sys/printk.h>
#include <drivers/sensor.h>

#define I2C_DEV_NAME DT_LABEL(DT_NODELABEL(i2c1))
#define MCP9808_ADDR 0x18

const struct device *i2c_dev;
const struct device *sensor_dev;

void main(void)
{
    struct sensor_value temp;

    // Initialize I2C device
    i2c_dev = device_get_binding(I2C_DEV_NAME);
    if (!i2c_dev) {
        printk("I2C: Device driver not found.\n");
        return;
    }

    // Initialize sensor device
    sensor_dev = device_get_binding(DT_LABEL(DT_INST(0, microchip_mcp9808)));
    if (!sensor_dev) {
        printk("Sensor: Device driver not found.\n");
        return;
    }

    if (sensor_sample_fetch(sensor_dev) < 0) {
        printk("Sensor: Failed to fetch data.\n");
        return;
    }

    sensor_channel_get(sensor_dev, SENSOR_CHAN_AMBIENT_TEMP, &temp);

    printk("Temperature: %d.%d C\n", temp.val1, temp.val2);
}