// Button
// constants won't change. They're used here to set pin numbers:
const int buttonPin = 2;  // the number of the pushbutton pin
const int ledPin = 5;    // the number of the LED pin

// variables will change:
int buttonState = 0;  // variable for reading the pushbutton status

void setup() {
  // initialize the LED pin as an output:
  pinMode(ledPin, OUTPUT);
  // initialize the pushbutton pin as an input:
  pinMode(buttonPin, INPUT);
}

void loop() {
  // read the state of the pushbutton value:
  buttonState = digitalRead(buttonPin);

  // check if the pushbutton is pressed. If it is, the buttonState is HIGH:
  if (buttonState == HIGH) {
    // turn LED on:
    digitalWrite(ledPin, HIGH);
  } else {
    // turn LED off:
    digitalWrite(ledPin, LOW);
  }
}


//LDR

int ledPin = 5;
int analogPin = a3; //ประกาศตัวแปร ให้ analogPin 
int val = 0;
void setup() {
  pinMode(ledPin, OUTPUT);  // sets the pin as output
  Serial.begin(9600);
}

void loop() {
  val = analogRead(analogPin);  //อ่านค่าสัญญาณ analog 
  Serial.print("val = "); // พิมพ์ข้อมความส่งเข้าคอมพิวเตอร์ "val = "
  Serial.println(val); // พิมพ์ค่าของตัวแปร val
  if (val < 50) { // สามารถกำหนดปรับได้ตามค่าแสงในห้องต่างๆ
    digitalWrite(ledPin, HIGH); // สั่งให้ LED ติดสว่าง
  }
  else {
    digitalWrite(ledPin, LOW); // สั่งให้ LED ดับ
  }
  delay(100);
}

// 7 segment

#define segA 2//connecting segment A to PIN2
#define segB 3// connecting segment B to PIN3
#define segC 4// connecting segment C to PIN4
#define segD 5// connecting segment D to PIN5
#define segE 6// connecting segment E to PIN6
#define segF 7// connecting segment F to PIN7
#define segG 8// connecting segment G to PIN8
int speed = 500;
int COUNT=0;//count integer for 0-9 increment
void setup()
{
                  for (int i=2;i<9;i++)
                  {
                                    pinMode(i, OUTPUT);// taking all pins from 2-8 as output
                  }
}
void loop()
{
switch (COUNT)
                {
                case 0://when count value is zero show”0” on disp
                digitalWrite(segA, HIGH);
                digitalWrite(segB, HIGH);
                digitalWrite(segC, HIGH);
                digitalWrite(segD, HIGH);
                digitalWrite(segE, HIGH);
                digitalWrite(segF, HIGH);
                digitalWrite(segG, LOW);
                break;
                case 1:// when count value is 1 show”1” on disp
                digitalWrite(segA, LOW);
                digitalWrite(segB, HIGH);
                digitalWrite(segC, HIGH);
                digitalWrite(segD, LOW);
                digitalWrite(segE, LOW);
                digitalWrite(segF, LOW);
                digitalWrite(segG, LOW);
                break;
                case 2:// when count value is 2 show”2” on disp
                digitalWrite(segA, HIGH);
                digitalWrite(segB, HIGH);
                digitalWrite(segC, LOW);
                digitalWrite(segD, HIGH);
                digitalWrite(segE, HIGH);
                digitalWrite(segF, LOW);
                digitalWrite(segG, HIGH);
                break;
                case 3:// when count value is 3 show”3” on disp
                digitalWrite(segA, HIGH);
                digitalWrite(segB, HIGH);
                digitalWrite(segC, HIGH);
                digitalWrite(segD, HIGH);
                digitalWrite(segE, LOW);
                digitalWrite(segF, LOW);
                digitalWrite(segG, HIGH);
                break;
                case 4:// when count value is 4 show”4” on disp
                digitalWrite(segA, LOW);
                digitalWrite(segB, HIGH);
                digitalWrite(segC, HIGH);
                digitalWrite(segD, LOW);
                digitalWrite(segE, LOW);
                digitalWrite(segF, HIGH);
                digitalWrite(segG, HIGH);
                break;
                case 5:// when count value is 5 show”5” on disp
                digitalWrite(segA, HIGH);
                digitalWrite(segB, LOW);
                digitalWrite(segC, HIGH);
                digitalWrite(segD, HIGH);
                digitalWrite(segE, LOW);
                digitalWrite(segF, HIGH);
                digitalWrite(segG, HIGH);
                break;
                case 6:// when count value is 6 show”6” on disp
                digitalWrite(segA, HIGH);
                digitalWrite(segB, LOW);
                digitalWrite(segC, HIGH);
                digitalWrite(segD, HIGH);
                digitalWrite(segE, HIGH);
                digitalWrite(segF, HIGH);
                digitalWrite(segG, HIGH);
                break;
                case 7:// when count value is 7 show”7” on disp
                digitalWrite(segA, HIGH);
                digitalWrite(segB, HIGH);
                digitalWrite(segC, HIGH);
                digitalWrite(segD, LOW);
                digitalWrite(segE, LOW);
                digitalWrite(segF, LOW);
                digitalWrite(segG, LOW);
                break;
                case 8:// when count value is 8 show”8” on disp
                digitalWrite(segA, HIGH);
                digitalWrite(segB, HIGH);
                digitalWrite(segC, HIGH);
                digitalWrite(segD, HIGH);
                digitalWrite(segE, HIGH);
                digitalWrite(segF, HIGH);
                digitalWrite(segG, HIGH);
                break;
                case 9:// when count value is 9 show”9” on disp
                digitalWrite(segA, HIGH);
                digitalWrite(segB, HIGH);
                digitalWrite(segC, HIGH);
                digitalWrite(segD, HIGH);
                digitalWrite(segE, LOW);
                digitalWrite(segF, HIGH);
                digitalWrite(segG, HIGH);
                break;
                    default:
                break;
                }
                if (COUNT<10)
                {
                                COUNT++;
                                delay(speed);///increment count integer for every second
                }
                if (COUNT==10)
                {
                                COUNT=0;// if count integer value is equal to 10, reset it to zero.
                                delay(speed);
                }
}


// RGB 16 million color


const int RED_PIN = 9;
const int GREEN_PIN = 10;
const int BLUE_PIN = 11;

int DISPLAY_TIME = 100;  // In milliseconds
int speed = 500;

void setup()
{
  pinMode(RED_PIN, OUTPUT);
  pinMode(GREEN_PIN, OUTPUT);
  pinMode(BLUE_PIN, OUTPUT);
}
void loop()
{
  mainColors();
  showSpectrum();
}
void mainColors()
{
  digitalWrite(RED_PIN, LOW);
  digitalWrite(GREEN_PIN, LOW);
  digitalWrite(BLUE_PIN, LOW);

  delay(speed);

  // Red (turn just the red LED on):

  digitalWrite(RED_PIN, HIGH);
  digitalWrite(GREEN_PIN, LOW);
  digitalWrite(BLUE_PIN, LOW);

  delay(speed);

  // Green (turn just the green LED on):

  digitalWrite(RED_PIN, LOW);
  digitalWrite(GREEN_PIN, HIGH);
  digitalWrite(BLUE_PIN, LOW);

  delay(speed);

  // Blue (turn just the blue LED on):

  digitalWrite(RED_PIN, LOW);
  digitalWrite(GREEN_PIN, LOW);
  digitalWrite(BLUE_PIN, HIGH);

  delay(speed);

  // Yellow (turn red and green on):

  digitalWrite(RED_PIN, HIGH);
  digitalWrite(GREEN_PIN, HIGH);
  digitalWrite(BLUE_PIN, LOW);

  delay(speed);

  // Cyan (turn green and blue on):

  digitalWrite(RED_PIN, LOW);
  digitalWrite(GREEN_PIN, HIGH);
  digitalWrite(BLUE_PIN, HIGH);

  delay(speed);

  // Purple (turn red and blue on):

  digitalWrite(RED_PIN, HIGH);
  digitalWrite(GREEN_PIN, LOW);
  digitalWrite(BLUE_PIN, HIGH);

  delay(speed);

  // White (turn all the LEDs on):

  digitalWrite(RED_PIN, HIGH);
  digitalWrite(GREEN_PIN, HIGH);
  digitalWrite(BLUE_PIN, HIGH);

  delay(speed);
}
void showSpectrum()
{
  int x;  // define an integer variable called "x"
  for (x = 0; x < 768; x++)
  {
    showRGB(x);  // Call RGBspectrum() with our new x
    delay(10);   // Delay for 10 ms (1/100th of a second)
  }
}
void showRGB(int color)
{
  int redIntensity;
  int greenIntensity;
  int blueIntensity;

  if (color <= 255)          // zone 1
  {
    redIntensity = 255 - color;    // red goes from on to off
    greenIntensity = color;        // green goes from off to on
    blueIntensity = 0;             // blue is always off
  }
  else if (color <= 511)     // zone 2
  {
    redIntensity = 0;                     // red is always off
    greenIntensity = 255 - (color - 256); // green on to off
    blueIntensity = (color - 256);        // blue off to on
  }
  else // color >= 512       // zone 3
  {
    redIntensity = (color - 512);         // red off to on
    greenIntensity = 0;                   // green is always off
    blueIntensity = 255 - (color - 512);  // blue on to off
  }
  analogWrite(RED_PIN, redIntensity);
  analogWrite(BLUE_PIN, blueIntensity);
  analogWrite(GREEN_PIN, greenIntensity);
}



// running LED

int led1 = 2; // กำหนดขาใช้งาน 
int led2 = 3;
int led3 = 4;
int led4 = 5;
int led5 = 6;
int led6 = 7;
int led7 = 8;
int led8 = 9;
int speed = 150;
void setup()
{
pinMode(led1, OUTPUT); // กำหนดขาทำหน้าที่ให้ขา 2 เป็น OUTPUT 
pinMode(led2, OUTPUT); // กำหนดขาทำหน้าที่ให้ขา 3 เป็น OUTPUT 
pinMode(led3, OUTPUT); // กำหนดขาทำหน้าที่ให้ขา 4 เป็น OUTPUT 
pinMode(led4, OUTPUT); // กำหนดขาทำหน้าที่ให้ขา 5 เป็น OUTPUT 
pinMode(led5, OUTPUT); // กำหนดขาทำหน้าที่ให้ขา 6 เป็น OUTPUT 
pinMode(led6, OUTPUT); // กำหนดขาทำหน้าที่ให้ขา 6 เป็น OUTPUT 
pinMode(led7, OUTPUT); // กำหนดขาทำหน้าที่ให้ขา 6 เป็น OUTPUT 
pinMode(led8, OUTPUT); // กำหนดขาทำหน้าที่ให้ขา 6 เป็น OUTPUT 
digitalWrite(led1,LOW);
digitalWrite(led2,LOW);
digitalWrite(led3,LOW);
digitalWrite(led4,LOW);
digitalWrite(led5,LOW);
digitalWrite(led6,LOW);
digitalWrite(led7,LOW);
digitalWrite(led8,LOW);
}
void loop()
{
digitalWrite(led1,HIGH); // ไฟ LED 1 ติด 50 ms 
delay(speed);
digitalWrite(led2,HIGH);
delay(speed);
digitalWrite(led3,HIGH);
delay(speed);
digitalWrite(led4,HIGH);
delay(speed);
digitalWrite(led5,HIGH);
delay(speed);
digitalWrite(led6,HIGH);
delay(speed);
digitalWrite(led7,HIGH);
delay(speed);
digitalWrite(led8,HIGH);
delay(speed);
digitalWrite(led1,LOW); // ไฟ LED 1 ดับ50 ms 
delay(speed);
digitalWrite(led2,LOW);
delay(speed);
digitalWrite(led3,LOW);
delay(speed);
digitalWrite(led4,LOW);
delay(speed);
digitalWrite(led5,LOW);
delay(speed);
digitalWrite(led6,LOW);
delay(speed);
digitalWrite(led7,LOW);
delay(speed);
digitalWrite(led8,LOW);
delay(speed);
}