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Code: Select all

unsigned long First_Tick;
unsigned long Second_Tick;
unsigned long Total_Tick;

task main()
{
  SetSensorLight(S2);                 //set up the light sensor
  SetSensorMode(S2, IN_MODE_RAW);     //set light sensor in RAW mode
  SetSensorType(S2, IN_TYPE_LIGHT_INACTIVE);  //have light sensor light off
  SetSensorColorRed(S1);              //turn on light
  Wait(500);                          //wait for light to be on
  First_Tick=CurrentTick(		 );    //get the initial tick
  SetSensorColorNone(S1);             //turn off color light
  until(SENSOR_2<=37);                //until the light sensor senses dark
  Second_Tick=CurrentTick(		 );   //get the final tick
  Total_Tick=Second_Tick-First_Tick;  //calculate the difference in ticks
  NumOut(0,LCD_LINE1,Total_Tick);     //display the result
  while(true);                        //wait for you to read it
}

Code: Select all

unsigned long First_Tick;
unsigned long Second_Tick;
unsigned long Total_Tick;

task main()
{
  SetSensorLight(S2);                 //set up the light sensor
  SetSensorMode(S2, IN_MODE_RAW);     //set light sensor in RAW mode
  SetSensorType(S2, IN_TYPE_LIGHT_INACTIVE);  //have light sensor light off
  First_Tick=CurrentTick(		 );    //get the initial tick
  SetSensorColorFull(S1);             //turn on light
  until(SENSOR_2>=37);                //until the light sensor senses dark
  Second_Tick=CurrentTick(		 );   //get the final tick
  Total_Tick=Second_Tick-First_Tick;  //calculate the difference in ticks
  NumOut(0,LCD_LINE1,Total_Tick);     //display the result
  while(true);                        //wait for you to read it
}

Code: Select all

#define SAMPLES 50
#define COLOR SENSOR_TYPE_COLORRED

task main(void){
     unsigned long tic;
     unsigned long totalTurnOffTime;
     unsigned long totalTurnOnTime;
     int i;
     
     SetSensorColorNone(S2);
     SetSensorMode(S2, SENSOR_MODE_RAW);
     
     for (i = 0; i < SAMPLES; i++){
         tic = CurrentTick();
         SetSensorType(S1, COLOR);
         while(SENSOR_2 < 500);
         totalTurnOnTime += CurrentTick()-tic;
         
         Wait(500); // Just in case the FW needs to finish any setup, when turning on the light

         tic = CurrentTick();
         SetSensorType(S1, SENSOR_TYPE_COLORNONE);
         while(SENSOR_2 > 500);
         totalTurnOffTime += CurrentTick()-tic;
         Wait(500);
     }
     
     TextOut(0, LCD_LINE1, "Turn On:");
     TextOut(0, LCD_LINE2, "Turn Off:");
     NumOut(60, LCD_LINE1, totalTurnOnTime/SAMPLES);
     NumOut(60, LCD_LINE2, totalTurnOffTime/SAMPLES);
     while(ButtonCount(BTNCENTER, 0) == 0);
}