/**
   ESP32 + DHT22 Example for Wokwi
   
   https://wokwi.com/arduino/projects/322410731508073042
*/

#include "DHTesp.h"

int redPin = 12;    // R 紅色LED控制腳 連接到ESP32的 GPIO15
int greenPin = 13;  // G 綠色LED控制腳 連接到ESP32的 GPIO17
int bluePin = 14;   // B 藍色LED控制腳 連接到ESP32的 GPIO16
const int DHT_PIN = 15;
int lcdColumns = 16;
int lcdRows = 2;
LiquidCrystal_I2C lcd(0x27, lcdColumns, lcdRows); 
DHTesp dhtSensor;
void setup() {
  Serial.begin(115200);
  dhtSensor.setup(DHT_PIN, DHTesp::DHT22);
  // initialize LCD
  lcd.init();
  // turn on LCD backlight                      
  lcd.backlight();
  pinMode(redPin, OUTPUT);   //設置redPin對應的管腳GPIO15為輸出
  pinMode(greenPin, OUTPUT); //設置greenPin對應的管腳GPIO17為輸出
  pinMode(bluePin, OUTPUT);  //設置bluePin對應的管腳GPIO16為輸出
}
void color (unsigned int red, unsigned int green, unsigned int blue)
{    
        analogWrite(redPin, red);   
        analogWrite(greenPin,green); 
        analogWrite(bluePin, blue); 
} 
void loop() { 
  TempAndHumidity  data = dhtSensor.getTempAndHumidity();
  Serial.println("溫度: " + String(data.temperature, 2) + "度");
  Serial.println("濕度: " + String(data.humidity, 1) + "%");
  Serial.println("---");
  if(data.temperature<0){color(0, 0, 255);/*藍色亮*/}
  else if(data.temperature>50){color(255,0, 0);/*红色亮*/}
  else if(data.temperature>30){color(255,255, 0);/*黃色亮*/}
  else{color(0,255, 0);/*綠色亮*/}
   // set cursor to first column, first row
  lcd.setCursor(0, 0);
  // print message
  lcd.print("Temp: " + String(data.temperature, 2) + "C");
  lcd.setCursor(0, 1);
  // print message
  lcd.print("Humidity: " + String(data.humidity, 1) + "%");
  delay(500);
  // clears the display to print new message
  lcd.clear();
  // set cursor to first column, second row
} 

  



  /*color(255, 0, 0); // 红色亮
        delay(1000); //延時一秒 
        color(0,255, 0); //綠色亮
        delay(1000); //延時一秒
        color(0, 0, 255); //藍色亮  
        delay(1000); //延時一秒
        color(0, 0, 255);/*藍色亮*/