一、实物连接

二、代码实现

#include <TimerOne.h> //the header file
#define S0 3 // Please notice the Pin’s define
#define S1 4 //Combination of S0 and S1 decision output signal frequency scaling factor
#define S2 5 //The combination of S2 and S3 decided to let the red, green, blue, what kind of light through a filter
#define S3 6
#define OUT 2

int g_count = 0; // count the frequecy
int g_array[3]; // store the RGB value
int g_flag = 0; // filter of RGB queue
float g_SF[3]; // save the RGB Scale factor

// Init TSC230 and setting Frequency.
void TSC_Init()
{
//set the pins as OUTPUT
pinMode(S0, OUTPUT);
pinMode(S1, OUTPUT);
pinMode(S2, OUTPUT);
pinMode(S3, OUTPUT);
pinMode(OUT, INPUT);
// OUTPUT Frequency Scaling 2%
digitalWrite(S0, LOW);
digitalWrite(S1, HIGH);
}

// Select the filter color
void TSC_FilterColor(int Level01, int Level02)
{
if(Level01 != 0)
Level01 = HIGH;

if(Level02 != 0)
Level02 = HIGH;

digitalWrite(S2, Level01);
digitalWrite(S3, Level02);
}
//interrupt function, calculate TCS3200 output signal of pulse number
void TSC_Count()
{
g_count ++ ;
}
/*
name:TSC_Callback()
function:Timer interrupt function, each 1 s after the interruption, the time of the red, green, blue three kinds of light through a filter
TCS3200 output signal of pulse number stored in the array g_array[3] in the corresponding element variables
*/
void TSC_Callback()
{
switch(g_flag)
{
case 0:
Serial.println(“->WB Start”);
TSC_WB(LOW, LOW); //Filter output Red
break;
case 1:
Serial.print(“->Frequency R=”);
Serial.println(g_count);
g_array[0] = g_count; //Stored within 1 s red light through the filter, TCS3200 output pulse number
TSC_WB(HIGH, HIGH); //Filter output Green
break;
case 2:
Serial.print(“->Frequency G=”);
Serial.println(g_count);
g_array[1] = g_count; //Stored within 1s green light through the filter, TCS3200 output pulse number
TSC_WB(LOW, HIGH); //Filter output Blue
break;
case 3:
Serial.print(“->Frequency B=”);
Serial.println(g_count);
Serial.println(“->WB End”);
g_array[2] = g_count; //Stored within 1s blue light through the filter, TCS3200 output pulse number
TSC_WB(HIGH, LOW); //Clear(no filter)
break;
default:
g_count = 0; //clear count
break;
}
}

void TSC_WB(int Level0, int Level1) //White Balance
{
g_count = 0;
g_flag ++;
TSC_FilterColor(Level0, Level1);
Timer1.setPeriod(1000000);//1000000 microseconds(1s)
}
void setup()
{
TSC_Init();
Serial.begin(9600);
Timer1.initialize(); // default is 1s
Timer1.attachInterrupt(TSC_Callback);
attachInterrupt(0, TSC_Count, RISING);
delay(4000);
for(int i=0; i<3; i++)
Serial.println(g_array[i]);
g_SF[0] = 255.0/ g_array[0]; //R Scale factor
g_SF[1] = 255.0/ g_array[1] ; //G Scale factor
g_SF[2] = 255.0/ g_array[2] ; //B Scale factor
Serial.println(g_SF[0]);
Serial.println(g_SF[1]);
Serial.println(g_SF[2]);
}
void loop()
{
g_flag = 0;
for(int i=0; i<3; i++)
Serial.println(int(g_array[i] * g_SF[i]));
delay(4000);
}