Weather Station Arduino

• local network built using a Wifi router
• a computer
• Arduino UNO (I used the Chinese replica.)
  
• USB cable for connecting to Arduino.
• barometer BME280 5V I2C (temperature, humidity, pressure sensor)
  
• soldering station with hairdryer
• solder 0.7 mm
• flux.
• Wi-Fi module ESP8266 version ESP-01
  
• 4 cables mom to dad for breadboard.
• 4 cables male to female for breadboard
• 4 cables 50 cm long for the breadboard.
• 8 thin heat-shrinkable tubes 10 cm long each.
• 1 large heat-shrink tubing of such a diameter so that it includes “4 cables 50 cm long for the breadboard” along with other heat-shrink tubing

$link = mysqli_connect("имя сервера в апач", "root", "пароль к бд", "база данных");
if (!$link) {
    echo "Ошибка: Невозможно установить соединение с MySQL." . PHP_EOL;
    echo "Код ошибки errno: " . mysqli_connect_errno() . PHP_EOL;
    echo "Текст ошибки error: " . mysqli_connect_error() . PHP_EOL;
    exit;
}
echo "Соединение с MySQL установлено!" . PHP_EOL;
echo "Информация о сервере: " . mysqli_get_host_info($link) . PHP_EOL;
if(isset($_GET['temp'])){
$c=$_GET['temp'];
$vlah=$_GET['vlah'];
$davlen=$_GET['davlen'];
$sql = "UPDATE `temp1` SET `C`='$c',`vlah`='$vlah',`davlen`='$davlen' WHERE `id`='1'";// Занесение данных в бд
mysqli_query($link,$sql);
}
echo"
";
$sql1="SELECT * FROM `temp1`";//Отображение данных
$result = mysqli_query($link,$sql1);
$row = mysqli_fetch_all($result,MYSQLI_NUM);
echo "Температура ";
echo $row[count($row)-1][0];
echo " C";
echo"
";
echo "Давление ";
echo $row[count($row)-1][1];
echo "hPa";
echo"
";
echo "Влажность ";
echo $row[count($row)-1][2];
echo "%";			

#include 
void setup(){
    Wire.begin();
    Serial.begin(9600);
    while (!Serial);
    Serial.println("\nI2C Scanner");
} 
void loop(){
    byte error, address;
    int nDevices;
    Serial.println("Scanning...");
    nDevices = 0;
    for(address = 8; address < 127; address++ ){
        Wire.beginTransmission(address);
        error = Wire.endTransmission();
        if (error == 0){
            Serial.print("I2C device found at address 0x");
            if (address<16)
                Serial.print("0");
            Serial.print(address,HEX);
            Serial.println(" !");
            nDevices++;
        }
        else if (error==4) {
            Serial.print("Unknow error at address 0x");
            if (address<16)
                Serial.print("0");
            Serial.println(address,HEX);
        } 
    }
    if (nDevices == 0)
        Serial.println("No I2C devices found\n");
    else
 Serial.println("done\n");
    delay(5000);

#include 
#define RX 10// Пин подключения к esp8266
#define TX 11// Пин подключения к esp8266
String AP = "Aleks";       //  Имя сети
String PASS = "1brui47ci881"; // Пароль
String HOST = "192.168.0.185";//ваш локальный ип
String PORT = "80";//порт апача
String field = "field1";
int countTrueCommand;
int countTimeCommand; 
boolean found = false; 
int valSensor = 1;
SoftwareSerial esp8266(RX,TX); 
#include 
#include 
#include 
#include 
#define BME_SCK 13
#define BME_MISO 12
#define BME_MOSI 11
#define BME_CS 10
#define SEALEVELPRESSURE_HPA (1013.25)
Adafruit_BME280 bme; // I2C
//Adafruit_BME280 bme(BME_CS); // hardware SPI
//Adafruit_BME280 bme(BME_CS, BME_MOSI, BME_MISO, BME_SCK); // software SPI
unsigned long delayTime;
void setup() {
    Serial.begin(9600);
    bool status;
    // default settings
    // (you can also pass in a Wire library object like &Wire2)
    status = bme.begin();  
    if (!status) {
        Serial.println("Could not find a valid BME280 sensor, check wiring!");
        while (1);
    }
     esp8266.begin(115200);
  sendCommand("AT",5,"OK");
  sendCommand("AT+CWMODE=1",5,"OK");
  sendCommand("AT+CWJAP=\""+ AP +"\",\""+ PASS +"\"",20,"OK");
  sendCommand("AT+CIPMUX=1",5,"OK");
}
void loop() { 
   float vlah=bme.readPressure() / 100.0F;
    sendCommand("AT+CIPSTART=0,\"TCP\",\""+ HOST +"\","+ PORT,15,"OK");
 String cmd = "GET /?temp="+String(bme.readTemperature())+"&vlah="+String(vlah)+"&davlen="+String(bme.readHumidity())+" HTTP/1.1\r\nHost: 192.168.0.185\r\n\r\n";// GET запрос на локальный сервер,temp,vlah,davlen переменые в которые заносяться данные с датчика и заносяться в бд.
 sendCommand("AT+CIPSEND=0," +String(cmd.length()+4),4,">");
 esp8266.println(cmd);delay(1500);countTrueCommand++;
 sendCommand("AT+CIPCLOSE=0",5,"OK");
 delay(100000);
}
void printValues() {
    Serial.print("Temperature = ");
    Serial.print(bme.readTemperature());
    Serial.println(" *C");
    Serial.print("Pressure = ");
    Serial.print(bme.readPressure() / 100.0F);
    Serial.println(" hPa");
    Serial.print("Humidity = ");
    Serial.print(bme.readHumidity());
    Serial.println(" %");
    Serial.println();
}
void sendCommand(String command, int maxTime, char readReplay[]) {
  Serial.print(countTrueCommand);
  Serial.print(". at command => ");
  Serial.print(command);
  Serial.print(" ");
  while(countTimeCommand < (maxTime*1))
  {
    esp8266.println(command);//at+cipsend
    if(esp8266.find(readReplay))//ok
    {
      found = true;
      break;
    }
    countTimeCommand++;
  }
  if(found == true)
  {
    Serial.println("OYI");
    countTrueCommand++;
    countTimeCommand = 0;
  }
  if(found == false)
  {
    Serial.println("Fail");
    countTrueCommand = 0;
    countTimeCommand = 0;
  }
  found = false;
 }

1. Web server installation.
   
2. Apache set
   
3. ic2 scaner
   
4. ESP8266