Stoping rgb sensor at specific rgb value

Other Hardware Sensors
1

Hello,
I trying to program the code to stop tsc34725 at R 47~48, G 89~90, B 99~100. What code should I use to achieve it?

#include <Wire.h>
#include <Adafruit_TCS34725.h>
#define redpin 3
#define greenpin 5
#define bluepin 6
#define commonAnode true
byte gammatable [256];
Adafruit_TCS34725 tcs = Adafruit_TCS34725(TCS34725_INTEGRATIONTIME_50MS,TCS34725_GAIN_4X);
void setup() {
Serial.begin(9600);
if (tcs.begin()){
} else {
Serial.println("NO TCS34725 found ... check your connections");
while (1);
}
#if defined (ARDUINO_ARCH_ESP32)
ledAttachPin (redpin, 1);
ledSetup(1, 12000, 8);
ledAttachPin (greenpin, 2);
ledSetup(2, 12000, 8);
ledAttachPin ( bluepin, 3);
ledSetup(3, 12000, 8);
#else
pinMode(redpin, OUTPUT);
pinMode(greenpin, OUTPUT);
pinMode(bluepin, OUTPUT);
#endif
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;
}
}
}
void loop () {
float red,green,blue;
tcs.setInterrupt(false);
delay(1000);
tcs.getRGB(&red, &green, &blue);
tcs.setInterrupt(true);
Serial.println("R:\t"); Serial.print(int(red));
Serial.println("\tG:\t"); Serial.print(int(green));
Serial.println("\tB:\t"); Serial.print(int(blue));
Serial.print("\n");
#if defined(ARDUINO_ARCH_ESP32)
ledWrite(1, gammatable[(int)red]);
ledWrite(2, gammatable[(int)green]);
ledWrite(3, gammatable[(int)blue]);
#else
analogWrite(redpin, gammatable[(int)red]);
analogWrite(greenpin, gammatable[(int)green]);
analogWrite(bluepin, gammatable[(int)blue]);
#endif
}

2

Why does nobody read and follow the advice that they are directed to when joining the forum ?

Please follow the advice given in the link below when posting code, in particular the section entitled 'Posting code and common code problems'

Use code tags (the </> icon above the compose window) to make it easier to read and copy for examination

3

Help us help you.

Please follow the advice given in the link below when posting code, in particular the section entitled 'Posting code and common code problems'

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Use the IDE autoformat tool (ctrl-t or Tools, Auto format) before posting code in code tags.

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4

It sounds to me like you want to search for the RGB PWM settings that will produce a particular color as seen by the color sensor. I think this will get you close.

void loop() {
  static int redPWM = 0, greenPWM = 0, bluePWM = 0;

  float red, green, blue;
  tcs.getRGB(&red, &green, &blue);

  // R 47~48, G 89~90, B 99~100.
  if (red < 47.0)
    redPWM++;
  if (red > 48.0)
    redPWM--;

  if (green < 89.0)
    greenPWM++;
  if (green > 90.0)
    greenPWM--;

  if (blue < 99.0)
    bluePWM++;
  if (blue > 100.0)
    bluePWM--;

  Serial.print("Red: ");
  Serial.print(red);
  Serial.print(" PWM: ");
  Serial.print(redPWM);
  Serial.print("\tGreen: ");
  Serial.print(green);
  Serial.print(" PWM: ");
  Serial.print(greenPWM);
  Serial.print("\tBlue: ");
  Serial.print(blue);
  Serial.print(" PWM: ");
  Serial.println(bluePWM);

#if defined(ARDUINO_ARCH_ESP32)
  ledWrite(1, redPWM);
  ledWrite(2, greenPWM);
  ledWrite(3, bluePWM);
#else
  analogWrite(redpin, redPWM);
  analogWrite(greenpin, greenPWM);
  analogWrite(bluepin, bluePWM);
#endif
}
5

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