color tester for a strip.

colorTester.ino

#include <FastLED.h>
#include <stdio.h>
#include <SPI.h>

#define LED_PIN_DATA 11
#define LED_PIN_CLOCK 13
#define NUM_LEDS 128 // Adjust this to the number of LEDs in your strip
#define BRIGHTNESS 155
#define POT_PIN_RED A3
#define POT_PIN_GREEN A0
#define POT_PIN_BLUE A6
#define LED_TYPE APA102
#define COLOR_ORDER BGR

CRGB leds[NUM_LEDS];

void setup() {
  delay(1000);
  FastLED.addLeds<LED_TYPE, LED_PIN_DATA, LED_PIN_CLOCK, COLOR_ORDER>(leds, NUM_LEDS).setCorrection(UncorrectedColor);
  FastLED.setBrightness(BRIGHTNESS);
  FastLED.setDither(false);
  FastLED.setMaxRefreshRate(0, false);
  Serial.begin(9600);  // Initialize serial communication for debugging
}

void loop() {
  updateColors();
  FastLED.show();
}

void updateColors() {
  // Read the values from potentiometers
  int potGreenValue = analogRead(POT_PIN_GREEN);
  int potBlueValue = analogRead(POT_PIN_BLUE);
  int potRedValue = analogRead(POT_PIN_RED);

  // Map these values to the range 0-255
  int redValue = constrain(map(potRedValue, 200, 900, 0, 255),0,255);
  int greenValue = constrain(map(potGreenValue, 200, 900, 0, 255),0,255);
  int blueValue = constrain(map(potBlueValue, 200, 900, 0, 255),0,255);

  // Debugging output
  Serial.print("Red: ");
  Serial.print(redValue);
  Serial.print("  Green: ");
  Serial.print(greenValue);
  Serial.print("  Blue: ");
  Serial.println(blueValue);


  // Set all LEDs to the color with Red fixed, and Green and Blue controlled by potentiometers
  for (int i = 0; i < NUM_LEDS; i++) {
    leds[i] = CRGB(redValue, greenValue, blueValue); // Fixed Red at 255, adjustable Green and Blue
  }
}