/* light.c */#include <unistd.h>#include <conio.h>#include <dsensor.h>#define EYE_SENSOR SENSOR_2#define EYE LIGHT_2int main (int argc, char **argv){  /* Turn on the sensor */  ds_active (&EYE_SENSOR);  msleep(100);  while(1)    {      /* test to see if it is dark out */      lcd_int(EYE);      msleep(50);    }  /* go back to the OS */  cls();  return 0;}