#include <DHT22.h>
#include <Arduino.h>
#include <U8x8lib.h>
#include <HC_SR04.h>
#include "RTCDS1307.h"
U8X8_SSD1306_128X64_ALT0_HW_I2C oled(/* reset=*/ U8X8_PIN_NONE);
//define pin data
RTCDS1307 rtc(0x68);
uint8_t year, month, weekday, day, a, b, c;
bool period = 0;
#define pinDATA 7 // SDA, or almost any other I/O pin
DHT22 dht22(pinDATA); 
 int ledPin=8;
 HC_SR04<10> sensor(9);
void setup() {
  Serial.begin(9600);  sensor.begin();
  Serial.begin(115200); //1bit=10µs
  Serial.println("\ntest capteur DTH22");
  oled.begin();
  oled.setFlipMode(0);
  oled.setFont(u8x8_font_chroma48medium8_r);
  pinMode(ledPin, OUTPUT);
pinMode(12, OUTPUT);

Serial.begin(115200);
  rtc.begin();

  rtc.setTime(12, 59, 50);
}

void loop() {
  float d;
  rtc.getTime(a, b, c, period);

  if (a>8&&a<18){
    d=0;

  }
  else{
    sensor.startMeasure();
 d=sensor.getDist_cm();}
oled.clear();
  float t = dht22.getTemperature();
  float h = dht22.getHumidity();
  

oled.print("TEMP:");oled.print(t);oled.print("C");
oled.print("\nRH:");oled.print(h);oled.print("%");
  if (t > 30) {
  oled.print("\ntoo hot");
 tone(12,260,1000);
digitalWrite(ledPin, HIGH);

  

  } if (t < 30) {
  // 如果温度不超过45度，关闭蜂鸣器和停止LED闪烁
    digitalWrite(12, LOW);
    digitalWrite(ledPin, LOW);  // 确保LED关闭
  }
 if (h > 75) {
  oled.print("\ntoo wet");
 tone(12,260,1000);
digitalWrite(ledPin, HIGH);

  

  } if (h < 75) {
  // 如果温度不超过45度，关闭蜂鸣器和停止LED闪烁
    digitalWrite(12, LOW);
    digitalWrite(ledPin, LOW);  // 确保LED关闭
  }
  if (d > 30) {
  oled.print("\ndoor is opened");
 tone(12,260,1000);
digitalWrite(ledPin, HIGH);

  

  } if (d < 30) {
  // 如果温度不超过45度，关闭蜂鸣器和停止LED闪烁
    digitalWrite(12, LOW);
    digitalWrite(ledPin, LOW);  // 确保LED关闭
  }
   delay(2000); //Collecting period should be : >1.7 second
   
}