diff --git a/OpenMQTTGateway.ino b/OpenMQTTGateway.ino
index ec025a7..e429302 100644
--- a/OpenMQTTGateway.ino
+++ b/OpenMQTTGateway.ino
@@ -587,10 +587,10 @@ void loop()
       }
     #endif
     #ifdef ZgatewayBT
-      #ifndef ESP32
-        if(BTtoMQTT())
-        trc(F("BTtoMQTT OK"));
-      #endif
+        #ifndef multiCore
+          if(BTtoMQTT())
+          trc(F("BTtoMQTT OK"));
+        #endif
     #endif
     #ifdef ZgatewayRFM69
       if(RFM69toMQTT())
diff --git a/User_config.h b/User_config.h
index 7da9f50..7ee5848 100644
--- a/User_config.h
+++ b/User_config.h
@@ -175,6 +175,9 @@ const byte subnet[] = { 255, 255, 255, 0 }; //ip adress
 //variables to avoid duplicates
 #define time_avoid_duplicate 3000 // if you want to avoid duplicate mqtt message received set this to > 0, the value is the time in milliseconds during which we don't publish duplicates
 
+//uncomment to use multicore function of ESP32 for BLE
+//#define multiCore
+
 #define TimeBetweenReadingSYS 30000 // time between system readings (like memory)
 /*-------------------ACTIVATE TRACES----------------------*/
 #define TRACE 1  // 0= trace off 1 = trace on
diff --git a/ZgatewayBT.ino b/ZgatewayBT.ino
index 4402e7b..50cf28a 100644
--- a/ZgatewayBT.ino
+++ b/ZgatewayBT.ino
@@ -40,6 +40,9 @@ Thanks to wolass https://github.com/wolass for suggesting me HM 10 and dinosd ht
     #include <BLEScan.h>
     #include <BLEAdvertisedDevice.h>
 
+    //Time used to wait for an interval before resending BLE infos
+    unsigned long timeBLE= 0;
+    
     //core on which the BLE detection task will run
     static int taskCore = 0;
       
@@ -108,6 +111,7 @@ Thanks to wolass https://github.com/wolass for suggesting me HM 10 and dinosd ht
       };
 
     void setupBT(){
+        #ifdef multiCore
         // we setup a task with priority one to avoid conflict with other gateways
         xTaskCreatePinnedToCore(
                           coreTask,   /* Function to implement the task */
@@ -117,9 +121,13 @@ Thanks to wolass https://github.com/wolass for suggesting me HM 10 and dinosd ht
                           1,          /* Priority of the task */
                           NULL,       /* Task handle. */
                           taskCore);  /* Core where the task should run */
-        trc(F("ZgatewayBT ESP32 setup done "));
+          trc(F("ZgatewayBT multicore ESP32 setup done "));
+        #elif
+          trc(F("ZgatewayBT singlecore ESP32 setup done "));
+        #endif
     }
-
+    
+    #ifdef multiCore
     void coreTask( void * pvParameters ){
      
         String taskMessage = "BT Task running on core ";
@@ -136,6 +144,22 @@ Thanks to wolass https://github.com/wolass for suggesting me HM 10 and dinosd ht
             BLEScanResults foundDevices = pBLEScan->start(Scan_duration);
         }
     }
+    #elif
+    boolean BTtoMQTT(){
+      unsigned long now = millis();
+      if (now > (timeBLE + TimeBtw_Read)) {//retriving value of temperature and humidity of the box from DHT every xUL
+              timeBLE = now;
+              BLEDevice::init("");
+              BLEScan* pBLEScan = BLEDevice::getScan(); //create new scan
+              MyAdvertisedDeviceCallbacks myCallbacks;
+              pBLEScan->setAdvertisedDeviceCallbacks(&myCallbacks);
+              pBLEScan->setActiveScan(true); //active scan uses more power, but get results faster
+              BLEScanResults foundDevices = pBLEScan->start(Scan_duration);
+              return true;
+      }
+      return false;
+    }
+    #endif
       
   #else // arduino or ESP8266 working with HM10/11
 
diff --git a/tests/Test_config.h b/tests/Test_config.h
index 9d7bdce..7eb874d 100644
--- a/tests/Test_config.h
+++ b/tests/Test_config.h
@@ -168,6 +168,9 @@ const byte subnet[] = { 255, 255, 255, 0 }; //ip adress
 //variables to avoid duplicates
 #define time_avoid_duplicate 3000 // if you want to avoid duplicate mqtt message received set this to > 0, the value is the time in milliseconds during which we don't publish duplicates
 
+//uncomment to use multicore function of ESP32 for BLE
+#define multiCore
+
 #define TimeBetweenReadingSYS 30000 // time between system readings (like memory)
 /*-------------------ACTIVATE TRACES----------------------*/
 #define TRACE 1  // 0= trace off 1 = trace on