贸泽空调助手

UUUUU

空调助手

材料准备

ESP32-WROOM-32E
DHT11温湿度传感器
SGP40 VOC传感器
LCD-SPI
还有一台安装了Arduino IDE并搭建好ESP32开发环境的电脑
库文件下载

硬件连接

DHT11需要5V供电
MCU引脚	DHT11
D2	SIG
SGP40需要5V供电
MCU引脚	SGP40
D21	SDA
D22	SCL
OLED需要3.3V供电
MCU引脚	OLED
D13	SCL
D12	SDA
D27	RES
D26	DC
D25	CS
软件烧写

需要在代码中填写心知天气的私钥来获取天气信息和Wifi账户密码来联网，详情请看代码
#include <DHT11.h>
#include <WiFi.h>
#include <HTTPClient.h>
#include <ArduinoJson.h>
#include <Arduino.h>
#include <U8g2lib.h>
#include <Wire.h>
#include <DFRobot_SGP40.h>

#ifdef U8X8_HAVE_HW_SPI
#include <SPI.h>
#endif
#ifdef U8X8_HAVE_HW_I2C
#include <Wire.h>
#endif

DFRobot_SGP40    mySGP40;//Declare SGP40.
U8G2_SSD1327_ZJY_128X128_1_4W_SW_SPI u8g2(U8G2_R0, /* clock=*/ 13, /* data=*/ 12, /* cs=*/ 25, /* dc=*/ 26, /* reset=*/ 27);

DHT11 dht11(2);

// bilibili api: follower
String UID = "356383684";
String followerUrl = "https://api.bilibili.com/x/relation/stat?vmid=" + UID; // 粉丝数
String seniverse_1 = "https://api.seniverse.com/v3/weather/daily.json?key=(               )&location=nanjing&language=zh-Hans&unit=c&start=-1&days=2";//请在括号处添加心知天气的私钥
String seniverse_2 = "https://api.seniverse.com/v3/weather/now.json?key=(               )&location=nanjing&language=zh-Hans&unit=c";//请在括号处添加心知天气的私钥

int code = 0; // 天气
int temperature = 0; // 温度
int humidity = 0; // 湿度
DynamicJsonDocument doc(1024);

void getdata()
{
	HTTPClient http;
	http.begin(seniverse_1);
	int httpCode = http.GET();

	if (httpCode > 0)
	{
		Serial.printf("HTTP Get Code: %d\r\n", httpCode);

		if (httpCode == HTTP_CODE_OK) // 收到正确的内容
		{
			String resBuff = http.getString();
			Serial.println(resBuff);

			deserializeJson(doc, resBuff); //开始使用Json解析
      humidity = doc["results"][0]["daily"][0]["humidity"];
		}
	}
	else
	{
		Serial.printf("HTTP Get Error: %s\n", http.errorToString(httpCode).c_str());
	}
	http.end();

  http.begin(seniverse_2); //HTTP begin
	httpCode = http.GET();

	if (httpCode > 0)
	{
		Serial.printf("HTTP Get Code: %d\r\n", httpCode);

		if (httpCode == HTTP_CODE_OK) // 收到正确的内容
		{
			String resBuff = http.getString();
			Serial.println(resBuff);

			deserializeJson(doc, resBuff); //开始使用Json解析
      code = doc["results"][0]["now"]["code"];
      temperature = doc["results"][0]["now"]["temperature"];
		}
	}
	else
	{
		Serial.printf("HTTP Get Error: %s\n", http.errorToString(httpCode).c_str());
	}
	http.end();
}

int temperature_room;
int humidity_room;
void readTemHum()
{
  temperature_room = dht11.readTemperature();
  humidity_room = dht11.readHumidity();
  if (temperature_room != DHT11::ERROR_CHECKSUM && temperature_room != DHT11::ERROR_TIMEOUT && humidity_room != DHT11::ERROR_CHECKSUM && humidity_room != DHT11::ERROR_TIMEOUT)
  {
    Serial.print("Temperature: ");
    Serial.print(temperature_room);
    Serial.println(" °C");
    Serial.print("Humidity: ");
    Serial.print(humidity_room);
    Serial.println(" %");
  }
  else
  {
    if (temperature_room == DHT11::ERROR_TIMEOUT || temperature_room == DHT11::ERROR_CHECKSUM)
    {
      Serial.print("Temperature Reading Error: ");
      Serial.println(DHT11::getErrorString(temperature_room));
    }
      if (humidity_room == DHT11::ERROR_TIMEOUT || humidity_room == DHT11::ERROR_CHECKSUM)
    {
      Serial.print("Humidity Reading Error: ");
      Serial.println(DHT11::getErrorString(humidity_room));
    }
  }  
}

void setup()
{
  pinMode(12,OUTPUT);
  pinMode(14,OUTPUT);
  
  Serial.begin(115200);
  WiFi.disconnect(true);

  WiFi.begin("(               )", "(               )");//请在括号处分别添加Wifi账户与Wifi密码
	while (WiFi.status() != WL_CONNECTED)
	{
	  delay(300);
		Serial.print(".");
	}

  Serial.println("连接成功");
  Serial.print("IP address: ");
  Serial.println(WiFi.localIP());

  u8g2.begin();
  u8g2.enableUTF8Print();

  Serial.println("DFrobot Gravity SGP40 VOC Sensor Example");
  Serial.println(F("Starting " __FILE__ " from " __DATE__ __TIME__));
  Serial.println("SGP40 is booting up, sensor readings can be taken after 10 seconds...");

  while(mySGP40.begin(/*duration = */10000) !=true){
    Serial.println("Failed to initialize SGP40, please check wiring and cable connections"); 
    delay(1000);
  }
  Serial.println("----------------------------------------------");
  Serial.println("SGP40 initialized successfully!");
  Serial.println("----------------------------------------------");

}

void loop()
{
  uint16_t index = mySGP40.getVoclndex();
  
  Serial.print("vocIndex = ");
  Serial.println(index);

  getdata();//天气获取
  readTemHum();//温湿度获取
  u8g2.firstPage();
  Serial.println("");
  Serial.print(temperature_room);
  Serial.println("");
  Serial.print(temperature);
  Serial.println("");
  
  do{
    u8g2.setFont(u8g2_font_wqy14_t_gb2312b);
    u8g2.setCursor(0,20);
    u8g2.print("南京");

    u8g2.setCursor(0,40);
    u8g2.print("温度：");
    u8g2.setCursor(42,40);
    u8g2.print(temperature_room);
    u8g2.setCursor(60,40);
    u8g2.print("℃");
    u8g2.setCursor(0,54);
    u8g2.print("湿度：");
    u8g2.setCursor(42,54);
    u8g2.print(humidity_room);    
    u8g2.setCursor(60,54);
    u8g2.print("%");    
    u8g2.setCursor(0,68);
    u8g2.print("VOC指数:");
    u8g2.setCursor(60,68);
    u8g2.print(index); 

    u8g2.setCursor(0,90);
    u8g2.print("死亡之翼提醒您");    
    if(index>400)
    {
      digitalWrite(12,HIGH);
      digitalWrite(14,HIGH);
      u8g2.setCursor(0,104);
      u8g2.print("要憋四了还不开窗!");
      u8g2.setCursor(0,120);
      u8g2.print("通风换气");
    }
    else if(temperature>30&&temperature_room>26&&humidity_room<=68)//热
    {      
      digitalWrite(12,HIGH);
      digitalWrite(14,LOW);
      u8g2.setCursor(0,104);
      u8g2.print("夏天到了,整点西瓜~");
      u8g2.setCursor(0,120);
      if(temperature<=36)
      {
        u8g2.print("制冷！ 26℃!");
      }
      else if(temperature<=37)
      {
        u8g2.print("制冷！ 27℃!");
      }
      else
      {
        u8g2.print("制冷！ 28℃!");
      }
      
    }    
    else if(temperature_room>26&&humidity_room>68)//除热湿，冷湿开制热
    {
      digitalWrite(12,HIGH);
      digitalWrite(14,LOW);
      u8g2.setCursor(0,104);
      u8g2.print("家里要长蘑菇啦!");
      u8g2.setCursor(0,120);
      u8g2.print("除湿!  26℃!");
    }
    else if(humidity_room>68)//除湿
    {
      digitalWrite(12,HIGH);
      digitalWrite(14,HIGH);
      u8g2.setCursor(0,104);
      u8g2.print("家里是被淹了么!");
      u8g2.setCursor(0,120);
      u8g2.print("不是除湿就是制热");
    }
    else if(temperature<10&&temperature_room<14)//冷
    {
      digitalWrite(12,LOW);
      digitalWrite(14,HIGH);
      u8g2.setCursor(0,104);
      u8g2.print("这屋也太冷了吧!");
      u8g2.setCursor(0,120);
      u8g2.print("制暖!  20℃!");
    }
    else if(temperature>10&&temperature<18&&temperature_room>14&&temperature_room<20)
    {
      digitalWrite(12,LOW);
      digitalWrite(14,HIGH);
      u8g2.setCursor(0,104);
      u8g2.print("天气冷,多穿衣服~");
      u8g2.setCursor(0,120);
      u8g2.print("=。=来!宝,穿点衣服");
    }
    else
    {
      digitalWrite(12,LOW);
      digitalWrite(14,LOW);
      u8g2.setCursor(0,104);
      u8g2.print("真舒服 _(:з」∠)_");
      u8g2.setCursor(0,120);
      u8g2.print("空调也是需要休息的");
    }
    
    u8g2.setFont(u8g2_font_open_iconic_weather_4x_t);
    if(code>=0&&code<=3)
    {
      u8g2.drawGlyph(90,50,0x0045);
    }
    else if(code>=4&&code<=8)
    {
      u8g2.drawGlyph(90,50,0x0041);
    }
    else if(code==9)
    {
      u8g2.drawGlyph(90,50,0x0040);
    }
    else if(code>=10&&code<=20)
    {
      u8g2.drawGlyph(90,50,0x0043);
    }
  }while(u8g2.nextPage());
}