hw.cpp

#define greenPin 9
#define bluePin 10
#define redPin  11
#define magPIN  A1


#define VAL 4

int r = 0;
int g = 0;
int b = 0;

void setColor(int red, int green, int blue) {
  red = 255 - red;
  green = 255 - green;
  blue = 255 - blue;
  analogWrite(redPin, red);
  analogWrite(greenPin, green);
  analogWrite(bluePin, blue);
}

void brighten(char light) {
  switch (light)
  {
    case 'r':
      if (r + VAL <= 255) r += VAL;
      else r = 255;
      break;
    case 'g':
      if (g + VAL <= 255) g += VAL;
      else g = 255;
      break;
    case 'b':
      if (b + VAL <= 255) b += VAL;
      else b = 255;
      break;
    default:
      break;
  }
}

void darken(char light) {
  switch (light)
  {
    case 'r':
      if (r - VAL >= 0) r -= VAL;
      else r = 0;
      break;
    case 'g':
      if (g - VAL >= 0) g -= VAL;
      else g = 0;
      break;
    case 'b':
      if (b - VAL >= 0) b -= VAL;
      else b = 0;
      break;
    default:
      break;
  }
}
void setup() {
  //  pinMode(LED, OUTPUT);
  Serial.begin(9600);
  Serial.println("--------------------------------------------");
  Serial.println("[Team 1] owo)/");
  Serial.println("1. B10530027");
  Serial.println("2. B10301052");
  Serial.println("3. A10502002");
  Serial.println("4. A10506001");
  Serial.println("--------------------------------------------");
}

void loop() {
  int val = analogRead(magPIN);
  if (val < 200) setColor(0, 0, 0);
//  else setColor(128, 128, 128);

  int event;
  if (Serial.available() > 0) {
    event = Serial.read();

    switch (event)
    {
      case 'R':  r = 255; g = 0; b = 0;  break;
      case 'G':   r = 0; g = 255; b = 0;  break;
      case 'B':   r = 0; g = 0; b = 255;  break;
      case '+':
        brighten('r');
        brighten('g');
        brighten('b');
        break;
      case '-':
        darken('r');
        darken('g');
        darken('b');
        break;
      case 'Q':
        brighten('r');
        break;
      case 'A':
        darken('r');
        break;
      case 'W':
        brighten('g');
        break;
      case 'S':
        darken('g');
        break;
      case 'E':
        brighten('b');
        break;
      case 'D':
        darken('b');
        break;
      case '?':  Serial.print("RGB="); Serial.print(r); Serial.print(","); Serial.print(g); Serial.print(","); Serial.print(b); break;
      case 'h':
        Serial.println("--------------------------------------------");
        Serial.println("[Help Page]");
        Serial.println("+/-  : Brighten/Darken all.");
        Serial.println("Q/A  : Brighten/Darken RED.");
        Serial.println("W/S  : Brighten/Darken GREEN.");
        Serial.println("E/D  : Brighten/Darken BLUE.");
        Serial.println("R/G/B: Switch light to R/G/B.");
        Serial.println("?    : Show R,G,B");
        Serial.println("--------------------------------------------");
      default:
        break;
    }
    setColor(r, g, b);
  }
}