New Features

What feature(s) did you add?

• Connect several sensors to ESP8266

  

• Get sensor data in ESP8266

  

• Upload data to TCP server and save in the database

  

• Show in dynamic charts

  

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How did you implement it/them?

• Connecting sensors with ESP8266 and getting data by read the IO pin

  #include <dht11.h>  
  dht11 DHT11; 
  void getAirQuality()
  {
     AirQuality = analogRead(AirQualityPin);  
     Serial.print("getAirQuality running.Get data :");
     Serial.println(AirQuality);
    }
  void getDistance()
  {
     Distance = analogRead(DistancePin);  
     Serial.print("getDistance running.Get data :");
     Serial.println(Distance);
    }
  void  getVoice()
  {
     Voice = analogRead(VoicePin);  
     Serial.print("getVoice running.Get data :");
     Serial.println(Voice);
    }
  void  getLight()
  {
     Light = analogRead(LightPin);  
     Serial.print("getLight running.Get data :");
     Serial.println(Light);
    }
  
  void getHumi()
  {
    DHT11.read(TempHumiPin);  
    humi = (float)DHT11.humidity;
    Serial.print("getHumi running.Get data :");
    Serial.println(humi);
    }
    
  void getTemp()
  {
    DHT11.read(TempHumiPin);  
    temp = (float)DHT11.temperature;
    Serial.print("getTemp running.Get data :");
    Serial.println(temp);
    }
  

  By import dht11 temperature and humidity library then use the function of "DHT11.read" to get temperature and humidity

  Other sensors data can be read by the function "analogRead"

• Upload sensor data to TCP server in a specific protocol

  client.print(String("AA") + ID + String("BB") + AirQuality +
                   String("CC") + Distance + String("DD") + Voice +
                   String("EE") + Light + String("FF") + humi +
                   String("GG") + temp +  String("HH"));
  

  Use several special character to identify the sensor data

• Get each of the data and save in database

   $ID_bf = "AA";
   $airQuality_bf = "BB";
   $distance_bf = "CC";
   $voice_bf = "DD";
   $light_bf = "EE";
   $humi_bf = "FF";
   $temp_bf = "GG";
   $end = "HH";
  
  
  $ID_loc = strpos($message, $ID_bf);
  $airQuality_loc = strpos($message, $pm_bf);
  $distance_loc = strpos($message, $co_bf);
  $voice_loc = strpos($message, $pwm_bf);
  $light_loc = strpos($message, $temp_bf);
  $humi_loc = strpos($message, $switch_bf);
  $temp_loc = strpos($message, $checkdata_bf);
  $end_loc = strpos($message, $end);
  
  
  $data_ID = substr($message,$ID_loc+2,$airQuality_loc-$ID_loc-2);
  $data_ID = trim($data_ID);
  $data_airQuality = substr($message,$airQuality_loc+2,$distance_loc-$airQuality_loc-2);
  $data_distance = substr($message,$distance_loc+2,$voice_loc-$distance_loc-2);
  $data_voice = substr($message,$voice_loc+2,$light_loc-$voice_loc-2);
  $data_light = substr($message,$light_loc+2,$humi_loc-$light_loc-2);
  $data_humi = substr($message,$humi_loc+2,$temp_loc-$humi_loc-2);
  $data_temp = substr($message,$temp_loc+2,$end_loc-$temp_loc-2);
  
   $insert_sql = "INSERT INTO device (ID,data_airQuality,data_distance,data_voice,data_light,data_humi,data_temp,client_id,timestamp,online_or_not) values ('$data_ID','$data_airQuality','$data_distance','$data_voice','$data_light','$data_humi','$data_temp','$client_id','$dati','1')";
   $insert_reslut = mysql_query($insert_sql);
  

• Replace the random function in file sensorsData.php with data from the database

  include_once("conn.php"); 
      $sql = "SELECT * from device where ID = '$ID' ";
      $result = mysql_query($sql);
      $row = mysql_fetch_array($result);
      $data_airQuality = $row['data_airQuality'];
      $data_distance = $row['data_distance'];
      $data_voice = $row['data_voice'];
      $data_light = $row['data_light'];
      $data_humi = $row['data_humi'];
      $data_temp = $row['data_temp'];
  

  ​

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Roadmap

• The function existing
  • Now , There are two ways to control the IOT smart hardware remotely.
  • Now,we can monitor several sensor data in the dynamic chart and Web UI.
  • Now ,we can actually show the sensors data in the dynamic chart in web UI.
• In the future ,the IOT system will become more powerful
  • Add a login system to become more practical
  • Focusing more on UI design
  • Connect to the Home appliance with using relay module
  • Add more control and monitor way like discord controlling and so on.

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How to contribute?

Github: https://github.com/Cha0s0000/IOT

• Fork it!
• Create your feature branch: git checkout -b my-new-feature
• Commit your changes: git commit -am 'Add some feature'
• Push to the branch: git push origin my-new-feature
• Submit a pull request.

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Posted on Utopian.io - Rewarding Open Source Contributors

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