Color Sensor Type pH Meter

1//Color Sensor Type pH Meter
2
3#include <Wire.h>//I2C
4#include  "Adafruit_TCS34725.h"//Color Sensor
5#include <TM74HC595Display.h>//7LED
6
7Adafruit_TCS34725  tcs = Adafruit_TCS34725(TCS34725_INTEGRATIONTIME_50MS, TCS34725_GAIN_4X);
8
9//7LED
10int  SCLK = 7;
11int RCLK = 6;
12int DIO = 5;
13
14//7LED
15TM74HC595Display disp(SCLK,  RCLK, DIO);
16unsigned char LED_0F[14];//
17
18void setup() {
19  //
20  LED_0F[0]  = 0xC0; //0
21  LED_0F[1] = 0xF9; //1
22  LED_0F[2] = 0xA4; //2
23  LED_0F[3]  = 0xB0; //3
24  LED_0F[4] = 0x99; //4
25  LED_0F[5] = 0x92; //5
26  LED_0F[6]  = 0x82; //6
27  LED_0F[7] = 0xF8; //7
28  LED_0F[8] = 0x80; //8
29  LED_0F[9]  = 0x90; //9
30  LED_0F[10] = 0x7F; //.
31  LED_0F[11] = 0xBF; //-
32  LED_0F[12]  = 0x8C; //P
33  LED_0F[13] = 0x89; //H
34
35  disp.send(LED_0F[11], 0b1111);//----
36  delay(1000);//1000ms
37
38  //PH
39  for(int i=0; i<=2999; i++){
40    disp.send(LED_0F[12],  0b0100);
41    disp.send(LED_0F[13], 0b0010);
42  }
43
44  //
45  Serial.begin(9600);
46  Serial.println("Color View Test!");
47
48  if (tcs.begin()) {
49    Serial.println("Found  sensor");
50  }
51  else {
52    Serial.println("No TCS34725 found ... check  your connections");
53    while (1); // halt!
54  }
55}
56
57void loop() {
58  //16RGB
59  uint16_t clear, red, green, blue;
60
61  tcs.getRawData(&clear,  &red, &green, &blue);
62  //delay(1000);//1000ms
63
64  //RGB
65  Serial.print("C:\	");  Serial.print(clear);
66  Serial.print("\	R:\	"); Serial.print(red);
67  Serial.print("\	G:\	");  Serial.print(green);
68  Serial.print("\	B:\	"); Serial.print(blue);
69
70  //
71  uint32_t sum = clear;
72  float r, g, b;
73  r = red; r /= sum;
74  g = green; g /= sum;
75  b = blue; b /= sum;
76  r *= 256; g *= 256; b *= 256;
77  Serial.print("\	/");
78  Serial.print("\	r:"); Serial.print((int)r);
79  Serial.print("\	g:"); Serial.print((int)g);
80  Serial.print("\	b:"); Serial.print((int)b);
81
82  //pH
83  float pH_r, pH_g, pH_b;
84  int pH;
85  
86  //pH Function
87  pH_r  = 0.0000001216*r*r*r-0.0001876*r*r+0.1009*r-11.62;//r
88  pH_g = 0.000000007332*g*g*g-0.00001259*g*g+0.01022*g+4.676;//g
89  pH_b = 0.000000005716*b*b*b-0.00001896*b*b+0.02183*b-1.428;//b
90
91  pH = (pH_r+pH_g+pH_b)*10/3;
92
93  //pH
94  for(int i=0; i<=999; i++){
95    disp.digit4(pH, 3);
96    disp.send(LED_0F[10],  0b0010);
97  }
98
99  //pH
100  Serial.print("\	/");
101  Serial.print("\	pH_r:");  Serial.print((int)pH_r);
102  Serial.print("\	pH_g:"); Serial.print((int)pH_g);
103  Serial.print("\	pH_b:"); Serial.print((int)pH_b);
104  Serial.print("\	pH:");  Serial.print(pH);
105  Serial.println();
106
107}
108