WHW HackClub 2023 Programming + Testing

// Libraries for Program B
#include <FastLED.h>

// Program A variables
const int CH5_PIN = 2;  // Channel receiver pin
const int CH6_PIN = 3;  // New channel receiver pin
const int LIGHT_PIN = 4;  // Lightbulb pin

// Program B variables
#define NUM_LEDS 30  // Number of LEDs on the strip
#define DATA_PIN 5  // Data pin of the LED strip
#define LED_PIN 5   // !! DATA_PIN = LED_PIN !! LED STRIP
#define NUM_COLORS 4  // Number of colors in the ocean gradient

CRGB leds[NUM_LEDS];  // Array to store the LED colors

// Define the ocean color palette
CRGBPalette16 oceanPalette = CRGBPalette16(
  CRGB(0, 0, 255),    // dark blue
  CRGB(0, 92, 200),   // medium blue
  CRGB(0, 255, 255),  // cyan
  CRGB(0, 0, 255)     // dark blue
);

void setup() {
  // Initialize serial communication
  Serial.begin(9600);

  // Set pins as input/output
  pinMode(CH5_PIN, INPUT);
  pinMode(LIGHT_PIN, OUTPUT);
  pinMode(CH6_PIN, INPUT);

  // Initialize FastLED library
  FastLED.addLeds<WS2812B, DATA_PIN, GRB>(leds, NUM_LEDS);
  FastLED.setBrightness(100);  // Set brightness to maximum
}

void loop() {
  // Read channel receiver input
  int CH5 = pulseIn(CH5_PIN, HIGH);
  int CH6 = pulseIn(CH6_PIN, HIGH);

  // Check channel input range for lightbulb
  if (CH5 >= 900 && CH5 <= 1100) {
    digitalWrite(LIGHT_PIN, HIGH);  // Turn on lightbulb

    // Check channel input range for LED strip
    if (CH6 >= 900 && CH6 <= 1100) {
      static uint8_t hue = 0;
      uint8_t index = 0;

      // Fill the LED array with colors from the ocean palette
      for (int i = 0; i < NUM_LEDS / 2; i++) {
        index = map(i, 0, NUM_LEDS / 2 - 1, 0, NUM_COLORS * 256 - 1);
        leds[NUM_LEDS / 2 - i - 1] = leds[NUM_LEDS / 2 + i] = ColorFromPalette(oceanPalette, index + hue);
      }

      // Increment the hue to create the moving gradient effect
      hue -= 5;

      // Show the LED colors
      FastLED.show();
    } else if (CH6 >= 1400 && CH6 <= 1600) {
      // Do nothing for now
      for (int i = 0; i < NUM_LEDS; i++) {
        leds[i] = CRGB::White;
      }
    
      // Show the LED colors
      FastLED.show();
      Serial.println("CH6 SW2");
    } else if (CH6 >= 1900 && CH6 <= 2100) {
      // Do nothing for now
      FastLED.clear(true);
      Serial.println("CH6 SW3");
    } else {
      // Display error message if CH6 is not recognized
      digitalWrite(LED_PIN, LOW);  // Turn off LED strip
      delay(500);
      digitalWrite(LED_PIN, HIGH);  // Turn on LED strip
      delay(500);
      Serial.println("LED Strip data error: check channel and pin connection");
    }
  } else if (CH5 >= 1900 && CH5 <= 2000) {
    digitalWrite(LIGHT_PIN, LOW);  // Turn off lightbulb
    FastLED.clear(true);           // Turn off LED strip
  } else {
      digitalWrite(LIGHT_PIN, LOW);  // Turn off lightbulb
      delay(500);  // Wait for half a second
      digitalWrite(LIGHT_PIN, HIGH);  // Turn on lightbulb
      delay(500);  // Wait for half a second
      Serial.println("LED Strip data error: check channel and pin connection");
    }

// Print channel receiver inputs to serial monitor
Serial.print("CH5: ");
Serial.print(CH5);
Serial.print("\tCH6: ");
Serial.println(CH6);

// Wait for a brief period before reading again
delay(100);
}