光照器原理：
1.兩個通道，通道0是可檢測可見光和紅外光
2.通道1可檢測紅外光
3.輸入電壓在2.7v-5.5v之間
4.出腳SMBus串行數據I/O總線，SMBCLK:SMBus串行時鐘輸入總線
/* TCS3200 Colour Sensor!
Sensor Pin S0 -> Arduino Pin D5 Sensor Pin S1 -> Arduino Pin D4
Sensor Pin S2 -> Arduino Pin D6 Sensor Pin S3 -> Arduino Pin D7
Sensor Pin OUT -> Arduino Pin D8
Date:20221104
Author:Lee get from net!
**********************************************************************/
#define S0_PIN 5
#define S1_PIN 4
#define S2_PIN 7
#define S3_PIN 6
#define CAI_PIN 8
void setup()
{
// Set the S0, S1, S2, S3 Pins as Output
pinMode(S0_PIN, OUTPUT);
pinMode(S1_PIN, OUTPUT);
pinMode(S2_PIN, OUTPUT);
pinMode(S3_PIN, OUTPUT);
//Set OUT_PIN as Input
pinMode(CAI_PIN, INPUT);
// Set Pulse Width scaling to 20%
digitalWrite(S0_PIN, HIGH);
digitalWrite(S1_PIN, LOW);
// Enabl UART for Debugging
Serial.begin(9600);
}
void loop()
{
int r, g, b;
r = process_red_value();
delay(200);
g = process_green_value();
delay(200);
b = process_blue_value();
delay(200);
Serial.print("r = ");
Serial.print(r);
Serial.print(" ");
Serial.print("g = ");
Serial.print(g);
Serial.print(" ");
Serial.print("b = ");
Serial.print(b);
Serial.print(" ");
Serial.println();
if (r < 42)
{
Serial.println("Colour Pink");
}
else if (g < 63)
{
Serial.println("Colour Green");
}
else if (r < 64)
{
Serial.println("Colour Red");
}
}
int process_red_value()
{
digitalWrite(S2_PIN, LOW);
digitalWrite(S3_PIN, LOW);
int pulse_length = pulseIn(CAI_PIN, LOW);
return pulse_length;
}
int process_green_value()
{
digitalWrite(S2_PIN, HIGH);
digitalWrite(S3_PIN, HIGH);
int pulse_length = pulseIn(CAI_PIN, LOW);
return pulse_length;
}
int process_blue_value()
{
digitalWrite(S2_PIN, LOW);
digitalWrite(S3_PIN, HIGH);
int pulse_length = pulseIn(CAI_PIN, LOW);
return pulse_length;
}
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