Get multiple sensor values with http.GET()

Projects Programming
1

I have a php file in my website which returns sensor reading. I had been fetching this reading and displaying in my Serial monitor using the below code

http.begin("http://<MYWEBSITE>/fetch_sensor.php");  
      int httpCode = http.GET();                                                                 
      if (httpCode > 0) {
        String payload = http.getString();   
        SensorReading = payload.toInt();
        Serial.print("Sensor Reading=");
        Serial.print(SensorReading); 
        Serial.println();
      }

Now I have updated my php file to return readings of multiple sensors. The readings are returned seperated by commas like 23,66,82,100

I am looking to update my code so that the readings returned by the php file is assigned as SensorReading1, SensorReading2, SensorReading3 etc.

Seeking help from experts..
Thanks!!

2

You did an internet search on the words "arduino parse comma delimited string" and did not get a result set? How strage.

3

I searched with the keywords you gave and got many results.. but really I can't figure out how to use it in my code

4

Here is some code I used to parse a comma delimited serial info.

void fParseLIDAR_ReceivedSerial ( void * parameters )
{
  // distribute received LIDAR info
  String sTmp = "";
  sTmp.reserve ( 20 );
  String sMessage = "";
  sMessage.reserve ( StringBufferSize300 );
  for ( ;; )
  {
    EventBits_t xbit = xEventGroupWaitBits (eg, evtParseLIDAR_ReceivedSerial, pdTRUE, pdTRUE, portMAX_DELAY) ;
    xQueueReceive ( xQ_LIDAR_Display_INFO, &sMessage, QueueReceiveDelayTime );
    //        Serial.println ( sMessage );
    int commaIndex = sMessage.indexOf(',');
    sTmp.concat ( sMessage.substring(0, commaIndex) );
    sMessage.remove( 0, (commaIndex + 1) ); // chop off begining of message
    //    Serial.println ( sTmp );
    if ( sTmp == "!" )
    {
      xSemaphoreGive ( sema_LIDAR_OK );
      //  Display info from LIDAR
      sLIDAR_Display_Info = sMessage;
    }
    if ( sTmp == "$" )
    {
      xEventGroupSetBits( eg1, evtResetWatchDogVariables );
    }
    if ( sTmp == "#")
    {
      // Serial.println ( "#" );
      xSemaphoreTake( sema_LIDAR_Alarm, xSemaphoreTicksToWait );
      sLIDAR_Alarm_info = sMessage;
      xSemaphoreGive( sema_LIDAR_Alarm );
      xEventGroupSetBits( eg, evtfLIDAR_Alarm );
    }
    //    Serial.println ( "parse serial ok" );
    sTmp = "";
    sMessage = "";
    xSemaphoreGive( sema_ParseLIDAR_ReceivedSerial );
    //    Serial.print( "fParseReceivedSerial " );
    //    Serial.print(uxTaskGetStackHighWaterMark( NULL ));
    //    Serial.println();
    //    Serial.flush();
  }
  vTaskDelete( NULL );
} // void fParseReceivedSerial ( void * parameters )

Good luck.

5

Thanks!!