#include <Arduino.h>


#define RGB_RED_PIN 25
#define RGB_GREEN_PIN 26
#define RGB_BLUE_PIN 27

//// กำหนดค่า
#define LEDC_CHANNEL_0 0
#define LEDC_CHANNEL_1 1
#define LEDC_CHANNEL_2 2
#define LEDC_BASE_FREQ 5000
#define LED_TIMER_BIT 8

void setup() {
  //ledcSetup(name chanel, name freq, name resolution_bits)
  ledcSetup(LEDC_CHANNEL_0, LEDC_BASE_FREQ, LED_TIMER_BIT);
  ledcSetup(LEDC_CHANNEL_1, LEDC_BASE_FREQ, LED_TIMER_BIT);
  ledcSetup(LEDC_CHANNEL_2, LEDC_BASE_FREQ, LED_TIMER_BIT);

  //ledcAttachpin(pin, channel) ฟังก์ชันผูก timer เข้ากับ GPIO
  ledcAttachPin(RGB_RED_PIN, LEDC_CHANNEL_0);
  ledcAttachPin(RGB_GREEN_PIN, LEDC_CHANNEL_1);
  ledcAttachPin(RGB_BLUE_PIN, LEDC_CHANNEL_2);

  //ledcWrite(name channel, name duty) กำหนดค่าดิวตี้ไซเคิล
  ledcWrite(LEDC_CHANNEL_0, 255);
  ledcWrite(LEDC_CHANNEL_1, 255);
  ledcWrite(LEDC_CHANNEL_2, 255);

}

void ctrLEDRGB(int R, int G, int B){
  ledcWrite(LEDC_CHANNEL_0, map(R, 255, 0, 0, 255));  //map(value, fromLow, fromHigh, toLow, toHigh)
  ledcWrite(LEDC_CHANNEL_1, map(G, 255, 0, 0, 255));
  ledcWrite(LEDC_CHANNEL_2, map(B, 255, 0, 0, 255));
}

  void loop(){
    ctrLEDRGB(255,161,0); // สีส้มอ่อน
    delay(1000);
    ctrLEDRGB(0,30,255); // สีฟ้าเข้ม
    delay(1000);
    ctrLEDRGB(255,0,28); // สีแดงอ่อน
    delay(1000);


}