Hello All.
I am currently trying to test the tcs34725 color detection sensor. Right now, I am using the provided test code, which outputs the raw RGB values. I want to be able to convert these values into clear human colors, like "Red" or "Green". A second set of the test code has that logic, but that code is integrated with an LED and I do not want and LED in my setup.
Basically, the color sensor will detect the color of the object, take that raw RGB data, and spit out a flat color like "pink" or yellow"
I have included the two bits of code right now that I am trying to combine below(Since I am new the forum won't let me upload the files themselves). The first is called tcs34725 that outputs the values as rgb values, and the second is called colorview and has the logic that I believe converts them to human colors.
Any help at all would be appreciated. Thank You
#include <Wire.h>
#include "Adafruit_TCS34725.h"
/* Example code for the Adafruit TCS34725 breakout library */
/* Connect SCL to analog 5
Connect SDA to analog 4
Connect VDD to 3.3V DC
Connect GROUND to common ground */
/* Initialise with default values (int time = 2.4ms, gain = 1x) */
// Adafruit_TCS34725 tcs = Adafruit_TCS34725();
/* Initialise with specific int time and gain values */
Adafruit_TCS34725 tcs = Adafruit_TCS34725(TCS34725_INTEGRATIONTIME_614MS, TCS34725_GAIN_1X);
// our RGB -> eye-recognized gamma color
byte gammatable[256];
void setup(void) {
Serial.begin(9600);
if (tcs.begin()) {
Serial.println("Found sensor");
} else {
Serial.println("No TCS34725 found ... check your connections");
while (1);
}
// Now we're ready to get readings!
}
void loop(void) {
uint16_t r, g, b, c, colorTemp, lux;
tcs.getRawData(&r, &g, &b, &c);
// colorTemp = tcs.calculateColorTemperature(r, g, b);
colorTemp = tcs.calculateColorTemperature_dn40(r, g, b, c);
lux = tcs.calculateLux(r, g, b);
Serial.print("Color Temp: "); Serial.print(colorTemp, DEC); Serial.print(" K - ");
Serial.print("Lux: "); Serial.print(lux, DEC); Serial.print(" - ");
Serial.print("R: "); Serial.print(r, DEC); Serial.print(" ");
Serial.print("G: "); Serial.print(g, DEC); Serial.print(" ");
Serial.print("B: "); Serial.print(b, DEC); Serial.print(" ");
Serial.print("C: "); Serial.print(c, DEC); Serial.print(" ");
Serial.println(" ");
}
#include <Wire.h>
#include "Adafruit_TCS34725.h"
// Pick analog outputs, for the UNO these three work well
// use ~560 ohm resistor between Red & Blue, ~1K for green (its brighter)
#define redpin 3
#define greenpin 5
#define bluepin 6
// for a common anode LED, connect the common pin to +5V
// for common cathode, connect the common to ground
// set to false if using a common cathode LED
#define commonAnode true
// our RGB -> eye-recognized gamma color
byte gammatable[256];
Adafruit_TCS34725 tcs = Adafruit_TCS34725(TCS34725_INTEGRATIONTIME_50MS, TCS34725_GAIN_4X);
void setup() {
Serial.begin(9600);
//Serial.println("Color View Test!");
if (tcs.begin()) {
//Serial.println("Found sensor");
} else {
Serial.println("No TCS34725 found ... check your connections");
while (1); // halt!
}
// use these three pins to drive an LED
#if defined(ARDUINO_ARCH_ESP32)
ledcAttachPin(redpin, 1);
ledcSetup(1, 12000, 8);
ledcAttachPin(greenpin, 2);
ledcSetup(2, 12000, 8);
ledcAttachPin(bluepin, 3);
ledcSetup(3, 12000, 8);
#else
pinMode(redpin, OUTPUT);
pinMode(greenpin, OUTPUT);
pinMode(bluepin, OUTPUT);
#endif
// thanks PhilB for this gamma table!
// it helps convert RGB colors to what humans see
for (int i=0; i<256; i++) {
float x = i;
x /= 255;
x = pow(x, 2.5);
x *= 255;
if (commonAnode) {
gammatable[i] = 255 - x;
} else {
gammatable[i] = x;
}
//Serial.println(gammatable[i]);
}
}
// The commented out code in loop is example of getRawData with clear value.
// Processing example colorview.pde can work with this kind of data too, but It requires manual conversion to
// [0-255] RGB value. You can still uncomments parts of colorview.pde and play with clear value.
void loop() {
float red, green, blue;
tcs.setInterrupt(false); // turn on LED
delay(60); // takes 50ms to read
tcs.getRGB(&red, &green, &blue);
tcs.setInterrupt(true); // turn off LED
Serial.print("R:\t"); Serial.print(int(red));
Serial.print("\tG:\t"); Serial.print(int(green));
Serial.print("\tB:\t"); Serial.print(int(blue));
// Serial.print("\t");
// Serial.print((int)red, HEX); Serial.print((int)green, HEX); Serial.print((int)blue, HEX);
Serial.print("\n");
// uint16_t red, green, blue, clear;
//
// tcs.setInterrupt(false); // turn on LED
//
// delay(60); // takes 50ms to read
//
// tcs.getRawData(&red, &green, &blue, &clear);
//
// tcs.setInterrupt(true); // turn off LED
//
// Serial.print("C:\t"); Serial.print(int(clear));
// Serial.print("R:\t"); Serial.print(int(red));
// Serial.print("\tG:\t"); Serial.print(int(green));
// Serial.print("\tB:\t"); Serial.print(int(blue));
// Serial.println();
#if defined(ARDUINO_ARCH_ESP32)
ledcWrite(1, gammatable[(int)red]);
ledcWrite(2, gammatable[(int)green]);
ledcWrite(3, gammatable[(int)blue]);
#else
analogWrite(redpin, gammatable[(int)red]);
analogWrite(greenpin, gammatable[(int)green]);
analogWrite(bluepin, gammatable[(int)blue]);
#endif
}
Men have about 5 colors, women have a bazillion.