diff --git a/lib/TheengsUtils/TheengsUtils.cpp b/lib/TheengsUtils/TheengsUtils.cpp
index 272d420..bb96be2 100644
--- a/lib/TheengsUtils/TheengsUtils.cpp
+++ b/lib/TheengsUtils/TheengsUtils.cpp
@@ -53,17 +53,25 @@ std::string TheengsUtils::processCert(const char* cert) {
   return certStr;
 }
 
-std::string TheengsUtils::generateHash(const std::string& input) {
-  // Implementation depends on your hash function
-  // This is a placeholder
-  return "hash_placeholder";
-}
+#ifdef ESP32
+#  include "mbedtls/sha256.h"
 
-bool TheengsUtils::cmpToMainTopic(const char* topicOri, const char* toAdd) {
-  // Implementation depends on mqtt_topic and gateway_name
-  // You might need to pass these as parameters or make them class members
-  return false;
+std::string TheengsUtils::generateHash(const std::string& input) {
+  unsigned char hash[32];
+  mbedtls_sha256((unsigned char*)input.c_str(), input.length(), hash, 0);
+
+  char hashString[65]; // Room for null terminator
+  for (int i = 0; i < 32; ++i) {
+    sprintf(&hashString[i * 2], "%02x", hash[i]);
+  }
+
+  return std::string(hashString);
 }
+#else
+std::string TheengsUtils::generateHash(const std::string& input) {
+  return "Not implemented for ESP8266";
+}
+#endif
 
 unsigned long TheengsUtils::uptime() {
   static unsigned long lastUptime = 0;
diff --git a/lib/TheengsUtils/TheengsUtils.h b/lib/TheengsUtils/TheengsUtils.h
index e4f857e..90b520e 100644
--- a/lib/TheengsUtils/TheengsUtils.h
+++ b/lib/TheengsUtils/TheengsUtils.h
@@ -32,7 +32,6 @@ public:
     static String toString(uint64_t input);
     static std::string processCert(const char* cert);
     static std::string generateHash(const std::string& input);
-    static bool cmpToMainTopic(const char* topicOri, const char* toAdd);
     static unsigned long uptime();
     static void syncNTP();
     static int unixtimestamp();
diff --git a/main/ZactuatorFASTLED.ino b/main/ZactuatorFASTLED.ino
index abb38a8..e7bfa50 100644
--- a/main/ZactuatorFASTLED.ino
+++ b/main/ZactuatorFASTLED.ino
@@ -103,7 +103,7 @@ void MQTTtoFASTLED(char* topicOri, JsonObject& jsonData) {
   //trc(topicOri);
   //number = (long)strtol(&datacallback[1], NULL, 16);
 
-  if (TheengsUtils::cmpToMainTopic(topicOri, subjectMQTTtoFASTLEDsetled)) {
+  if (cmpToMainTopic(topicOri, subjectMQTTtoFASTLEDsetled)) {
     Log.trace(F("MQTTtoFASTLED JSON analysis" CR));
     int ledNr = jsonData["led"];
     Log.notice(F("Led numero: %d" CR), ledNr);
@@ -126,19 +126,19 @@ void MQTTtoFASTLED(char* topicOri, char* datacallback) {
   Log.trace(F("MQTTtoFASTLED: " CR));
   currentLEDState = GENERAL;
   long number = 0;
-  if (TheengsUtils::cmpToMainTopic(topicOri, subjectMQTTtoFASTLED)) {
+  if (cmpToMainTopic(topicOri, subjectMQTTtoFASTLED)) {
     number = (long)strtol(&datacallback[1], NULL, 16);
     Log.notice(F("Number: %l" CR), number);
     for (int i = 0; i < FASTLED_NUM_LEDS; i++) {
       leds[i] = number;
     }
     FastLED.show();
-  } else if (TheengsUtils::cmpToMainTopic(topicOri, subjectMQTTtoFASTLEDsetbrightness)) {
+  } else if (cmpToMainTopic(topicOri, subjectMQTTtoFASTLEDsetbrightness)) {
     number = (long)strtol(&datacallback[1], NULL, 16);
     Log.notice(F("Number: %l" CR), number);
     FastLED.setBrightness(number);
     FastLED.show();
-  } else if (TheengsUtils::cmpToMainTopic(topicOri, subjectMQTTtoFASTLEDsetanimation)) {
+  } else if (cmpToMainTopic(topicOri, subjectMQTTtoFASTLEDsetanimation)) {
     String payload = datacallback;
     Log.notice(F("Datacallback: %s" CR), datacallback);
     if (strstr(datacallback, "fire") != NULL) {
diff --git a/main/ZactuatorONOFF.ino b/main/ZactuatorONOFF.ino
index 54a945a..7696de6 100644
--- a/main/ZactuatorONOFF.ino
+++ b/main/ZactuatorONOFF.ino
@@ -133,7 +133,7 @@ void setupONOFF() {
 
 #  if jsonReceiving
 void MQTTtoONOFF(char* topicOri, JsonObject& ONOFFdata) {
-  if (TheengsUtils::cmpToMainTopic(topicOri, subjectMQTTtoONOFF)) {
+  if (cmpToMainTopic(topicOri, subjectMQTTtoONOFF)) {
     Log.trace(F("MQTTtoONOFF json data analysis" CR));
     int boolSWITCHTYPE = ONOFFdata["cmd"] | 99;
     int gpio = ONOFFdata["gpio"] | ACTUATOR_ONOFF_GPIO;
@@ -179,7 +179,7 @@ void MQTTtoONOFF(char* topicOri, JsonObject& ONOFFdata) {
       }
     }
   }
-  if (TheengsUtils::cmpToMainTopic(topicOri, subjectMQTTtoONOFFset)) {
+  if (cmpToMainTopic(topicOri, subjectMQTTtoONOFFset)) {
     Log.trace(F("MQTTtoONOFF json set" CR));
     /*
      * Configuration modifications priorities:
@@ -204,7 +204,7 @@ void MQTTtoONOFF(char* topicOri, JsonObject& ONOFFdata) {
 
 #  if simpleReceiving
 void MQTTtoONOFF(char* topicOri, char* datacallback) {
-  if ((TheengsUtils::cmpToMainTopic(topicOri, subjectMQTTtoONOFF))) {
+  if ((cmpToMainTopic(topicOri, subjectMQTTtoONOFF))) {
     Log.trace(F("MQTTtoONOFF" CR));
     char* endptr = NULL;
     long gpio = strtol(datacallback, &endptr, 10);
diff --git a/main/ZactuatorPWM.ino b/main/ZactuatorPWM.ino
index 18975fa..c5757a0 100644
--- a/main/ZactuatorPWM.ino
+++ b/main/ZactuatorPWM.ino
@@ -197,7 +197,7 @@ boolean PWMtoMQTT() {
 
 #  if jsonReceiving
 void MQTTtoPWM(char* topicOri, JsonObject& jsonData) {
-  if (TheengsUtils::cmpToMainTopic(topicOri, subjectMQTTtoPWMset)) {
+  if (cmpToMainTopic(topicOri, subjectMQTTtoPWMset)) {
     Log.trace(F("MQTTtoPWM JSON analysis" CR));
     // Parse the target value for each channel
     int modifiedChannelBits = 0;
@@ -230,7 +230,7 @@ void MQTTtoPWM(char* topicOri, JsonObject& jsonData) {
       }
     }
     fadeIsComplete = false; // The values will start to change during PWMLoop
-  } else if (TheengsUtils::cmpToMainTopic(topicOri, subjectMQTTtoPWMcalibrate)) {
+  } else if (cmpToMainTopic(topicOri, subjectMQTTtoPWMcalibrate)) {
     // Read the optional calibration data for each channel
     for (int i = 0; i < kNumChannels; ++i) {
       char key[64];
diff --git a/main/ZactuatorSomfy.ino b/main/ZactuatorSomfy.ino
index fa224cd..ecae060 100644
--- a/main/ZactuatorSomfy.ino
+++ b/main/ZactuatorSomfy.ino
@@ -50,7 +50,7 @@ void setupSomfy() {
 
 #  if jsonReceiving
 void MQTTtoSomfy(char* topicOri, JsonObject& jsonData) {
-  if (TheengsUtils::cmpToMainTopic(topicOri, subjectMQTTtoSomfy)) {
+  if (cmpToMainTopic(topicOri, subjectMQTTtoSomfy)) {
     Log.trace(F("MQTTtoSomfy json data analysis" CR));
     float txFrequency = jsonData["frequency"] | RFConfig.frequency;
 #    ifdef ZradioCC1101 // set Receive off and Transmitt on
diff --git a/main/ZboardM5.ino b/main/ZboardM5.ino
index d42fa69..276f717 100644
--- a/main/ZboardM5.ino
+++ b/main/ZboardM5.ino
@@ -117,7 +117,7 @@ void loopM5() {
 }
 
 void MQTTtoM5(char* topicOri, JsonObject& M5data) { // json object decoding
-  if (TheengsUtils::cmpToMainTopic(topicOri, subjectMQTTtoM5set)) {
+  if (cmpToMainTopic(topicOri, subjectMQTTtoM5set)) {
     Log.trace(F("MQTTtoM5 json set" CR));
     // Log display set between M5 lcd (true) and serial monitor (false)
     if (M5data.containsKey("log-lcd")) {
diff --git a/main/ZcommonRF.ino b/main/ZcommonRF.ino
index ca439bf..3bbdd2b 100644
--- a/main/ZcommonRF.ino
+++ b/main/ZcommonRF.ino
@@ -301,7 +301,7 @@ void RFConfig_load() {
 }
 
 void MQTTtoRFset(char* topicOri, JsonObject& RFdata) {
-  if (TheengsUtils::cmpToMainTopic(topicOri, subjectMQTTtoRFset)) {
+  if (cmpToMainTopic(topicOri, subjectMQTTtoRFset)) {
     Log.trace(F("MQTTtoRF json set" CR));
 
     /*
diff --git a/main/ZdisplaySSD1306.ino b/main/ZdisplaySSD1306.ino
index a3f8cac..db0d3a4 100644
--- a/main/ZdisplaySSD1306.ino
+++ b/main/ZdisplaySSD1306.ino
@@ -154,7 +154,7 @@ Handler for mqtt commands sent to the module
 */
 void MQTTtoSSD1306(char* topicOri, JsonObject& SSD1306data) { // json object decoding
   bool success = false;
-  if (TheengsUtils::cmpToMainTopic(topicOri, subjectMQTTtoSSD1306set)) {
+  if (cmpToMainTopic(topicOri, subjectMQTTtoSSD1306set)) {
     Log.trace(F("MQTTtoSSD1306 json set" CR));
     // properties
     if (SSD1306data.containsKey("onstate")) {
diff --git a/main/Zgateway2G.ino b/main/Zgateway2G.ino
index 0f027a5..3c8b44b 100644
--- a/main/Zgateway2G.ino
+++ b/main/Zgateway2G.ino
@@ -100,7 +100,7 @@ void MQTTto2G(char* topicOri, char* datacallback) {
   String data = datacallback;
   String topic = topicOri;
 
-  if (TheengsUtils::cmpToMainTopic(topicOri, subjectMQTTto2G)) {
+  if (cmpToMainTopic(topicOri, subjectMQTTto2G)) {
     Log.trace(F("MQTTto2G data analysis" CR));
     // 2G DATA ANALYSIS
     String phone_number = "";
@@ -128,7 +128,7 @@ void MQTTto2G(char* topicOri, char* datacallback) {
 
 #  if jsonReceiving
 void MQTTto2G(char* topicOri, JsonObject& SMSdata) {
-  if (TheengsUtils::cmpToMainTopic(topicOri, subjectMQTTto2G)) {
+  if (cmpToMainTopic(topicOri, subjectMQTTto2G)) {
     const char* sms = SMSdata["message"];
     const char* phone = SMSdata["phone"];
     Log.trace(F("MQTTto2G json data analysis" CR));
diff --git a/main/ZgatewayBLEConnect.h b/main/ZgatewayBLEConnect.h
index 406cac1..cedbd77 100644
--- a/main/ZgatewayBLEConnect.h
+++ b/main/ZgatewayBLEConnect.h
@@ -91,5 +91,14 @@ public:
   bool processActions(std::vector<BLEAction>& actions) override;
 };
 
+class SBCU_connect : public zBLEConnect {
+  uint8_t m_notifyVal;
+  void notifyCB(NimBLERemoteCharacteristic* pChar, uint8_t* pData, size_t length, bool isNotify);
+
+public:
+  SBCU_connect(NimBLEAddress& addr) : zBLEConnect(addr) {}
+  bool processActions(std::vector<BLEAction>& actions) override;
+};
+
 #endif //ESP32
 #endif //zBLEConnect_h
diff --git a/main/ZgatewayBLEConnect.ino b/main/ZgatewayBLEConnect.ino
index 70af3b6..c3b2e80 100644
--- a/main/ZgatewayBLEConnect.ino
+++ b/main/ZgatewayBLEConnect.ino
@@ -609,5 +609,94 @@ bool SBBT_connect::processActions(std::vector<BLEAction>& actions) {
   return result;
 }
 
+/*-----------------------SBCU HANDLING-----------------------*/
+void SBCU_connect::notifyCB(NimBLERemoteCharacteristic* pChar, uint8_t* pData, size_t length, bool isNotify) {
+  if (m_taskHandle == nullptr) {
+    return; // unexpected notification
+  }
+  if (!BTProcessLock) {
+    Log.trace(F("Callback from %s characteristic" CR), pChar->getUUID().toString().c_str());
+
+    if (length) {
+      m_notifyVal = *pData;
+    } else {
+      Log.notice(F("Invalid notification data" CR));
+      return;
+    }
+  } else {
+    Log.trace(F("Callback process canceled by BTProcessLock" CR));
+  }
+
+  xTaskNotifyGive(m_taskHandle);
+}
+
+bool SBCU_connect::processActions(std::vector<BLEAction>& actions) {
+  NimBLEUUID serviceUUID("cba20d00-224d-11e6-9fb8-0002a5d5c51b");
+  NimBLEUUID charUUID("cba20002-224d-11e6-9fb8-0002a5d5c51b");
+  NimBLEUUID notifyCharUUID("cba20003-224d-11e6-9fb8-0002a5d5c51b");
+  static byte CLOSE[] = {0x57, 0x0f, 0x45, 0x01, 0x01, 0x01, 0x64};
+  static byte OPEN[] = {0x57, 0x0f, 0x45, 0x01, 0x01, 0x01, 0x00};
+  static byte MOVE[] = {0x57, 0x0f, 0x45, 0x01, 0x01, 0x01, 0x00};
+  static byte STOP[] = {0x57, 0x0f, 0x45, 0x01, 0x01, 0x00, 0x01};
+
+  bool result = false;
+  if (actions.size() > 0) {
+    for (auto& it : actions) {
+      if (NimBLEAddress(it.addr) == m_pClient->getPeerAddress()) {
+        NimBLERemoteCharacteristic* pChar = getCharacteristic(serviceUUID, charUUID);
+        NimBLERemoteCharacteristic* pNotifyChar = getCharacteristic(serviceUUID, notifyCharUUID);
+        int value = -1;
+        if (it.value_type == BLE_VAL_INT) {
+          value = std::stoi(it.value);
+        }
+        if (it.write && pChar && pNotifyChar) {
+          Log.trace(F("processing Switchbot %s" CR), it.value.c_str());
+          if (pNotifyChar->subscribe(true,
+                                     std::bind(&SBCU_connect::notifyCB,
+                                               this, std::placeholders::_1, std::placeholders::_2,
+                                               std::placeholders::_3, std::placeholders::_4),
+                                     true)) {
+            if (it.value == "open" && it.value_type == BLE_VAL_STRING) {
+              result = pChar->writeValue(OPEN, 7, false);
+              value = 100;
+            } else if (it.value == "close" && it.value_type == BLE_VAL_STRING) {
+              result = pChar->writeValue(CLOSE, 7, false);
+              value = 0;
+            } else if (it.value == "stop" && it.value_type == BLE_VAL_STRING) {
+              result = pChar->writeValue(STOP, 7, false);
+            } else if (it.value_type == BLE_VAL_INT) {
+              if (value >= 0 && value <= 100) {
+                byte posByte = (byte)value;
+                MOVE[6] = posByte;
+                result = pChar->writeValue(MOVE, 7, false);
+              }
+            }
+
+            if (result) {
+              m_taskHandle = xTaskGetCurrentTaskHandle();
+              if (ulTaskNotifyTake(pdTRUE, pdMS_TO_TICKS(BLE_CNCT_TIMEOUT)) == pdFALSE) {
+                m_taskHandle = nullptr;
+              }
+              result = m_notifyVal == 0x01;
+            }
+          }
+        }
+
+        it.complete = result;
+        if (result || it.ttl <= 1) {
+          StaticJsonDocument<JSON_MSG_BUFFER> BLEdataBuffer;
+          JsonObject BLEdata = BLEdataBuffer.to<JsonObject>();
+          BLEdata["id"] = it.addr;
+          BLEdata["position"] = value;
+          buildTopicFromId(BLEdata, subjectBTtoMQTT);
+          enqueueJsonObject(BLEdata, QueueSemaphoreTimeOutTask);
+        }
+      }
+    }
+  }
+
+  return result;
+}
+
 #  endif //ZgatewayBT
 #endif //ESP32
diff --git a/main/ZgatewayBT.ino b/main/ZgatewayBT.ino
index 085ea94..6604140 100644
--- a/main/ZgatewayBT.ino
+++ b/main/ZgatewayBT.ino
@@ -1474,7 +1474,7 @@ void MQTTtoBTAction(JsonObject& BTdata) {
 }
 
 void MQTTtoBT(char* topicOri, JsonObject& BTdata) { // json object decoding
-  if (TheengsUtils::cmpToMainTopic(topicOri, subjectMQTTtoBTset)) {
+  if (cmpToMainTopic(topicOri, subjectMQTTtoBTset)) {
     Log.trace(F("MQTTtoBT json set" CR));
 
     // Black list & white list set
@@ -1512,7 +1512,7 @@ void MQTTtoBT(char* topicOri, JsonObject& BTdata) { // json object decoding
     // Load config from json if available
     BTConfig_fromJson(BTdata);
 
-  } else if (TheengsUtils::cmpToMainTopic(topicOri, subjectMQTTtoBT)) {
+  } else if (cmpToMainTopic(topicOri, subjectMQTTtoBT)) {
     KnownBTActions(BTdata);
     MQTTtoBTAction(BTdata);
   }
diff --git a/main/ZgatewayIR.ino b/main/ZgatewayIR.ino
index e47d1f7..7ec4878 100644
--- a/main/ZgatewayIR.ino
+++ b/main/ZgatewayIR.ino
@@ -163,7 +163,7 @@ bool sendIdentifiedProtocol(const char* protocol_name, uint64_t data, const char
 
 #  if jsonReceiving
 void MQTTtoIR(char* topicOri, JsonObject& IRdata) {
-  if (TheengsUtils::cmpToMainTopic(topicOri, subjectMQTTtoIR)) {
+  if (cmpToMainTopic(topicOri, subjectMQTTtoIR)) {
     Log.trace(F("MQTTtoIR json" CR));
     uint64_t data = IRdata["value"];
     const char* raw = IRdata["raw"];
diff --git a/main/ZgatewayLORA.ino b/main/ZgatewayLORA.ino
index 116ee3f..33546c3 100644
--- a/main/ZgatewayLORA.ino
+++ b/main/ZgatewayLORA.ino
@@ -484,7 +484,7 @@ void LORAtoMQTT() {
 
 #  if jsonReceiving
 void MQTTtoLORA(char* topicOri, JsonObject& LORAdata) { // json object decoding
-  if (TheengsUtils::cmpToMainTopic(topicOri, subjectMQTTtoLORA)) {
+  if (cmpToMainTopic(topicOri, subjectMQTTtoLORA)) {
     Log.trace(F("MQTTtoLORA json" CR));
     const char* message = LORAdata["message"];
     const char* hex = LORAdata["hex"];
@@ -512,7 +512,7 @@ void MQTTtoLORA(char* topicOri, JsonObject& LORAdata) { // json object decoding
       Log.error(F("MQTTtoLORA Fail json" CR));
     }
   }
-  if (TheengsUtils::cmpToMainTopic(topicOri, subjectMQTTtoLORAset)) {
+  if (cmpToMainTopic(topicOri, subjectMQTTtoLORAset)) {
     Log.trace(F("MQTTtoLORA json set" CR));
     /*
      * Configuration modifications priorities:
@@ -536,7 +536,7 @@ void MQTTtoLORA(char* topicOri, JsonObject& LORAdata) { // json object decoding
 #  endif
 #  if simpleReceiving
 void MQTTtoLORA(char* topicOri, char* LORAarray) { // json object decoding
-  if (TheengsUtils::cmpToMainTopic(topicOri, subjectMQTTtoLORA)) {
+  if (cmpToMainTopic(topicOri, subjectMQTTtoLORA)) {
     LoRa.beginPacket();
     LoRa.print(LORAarray);
     LoRa.endPacket();
diff --git a/main/ZgatewayPilight.ino b/main/ZgatewayPilight.ino
index 1d0bb84..70d7e23 100644
--- a/main/ZgatewayPilight.ino
+++ b/main/ZgatewayPilight.ino
@@ -154,7 +154,7 @@ void PilighttoMQTT() {
 }
 
 void MQTTtoPilight(char* topicOri, JsonObject& Pilightdata) {
-  if (TheengsUtils::cmpToMainTopic(topicOri, subjectMQTTtoPilightProtocol)) {
+  if (cmpToMainTopic(topicOri, subjectMQTTtoPilightProtocol)) {
     bool success = false;
     if (Pilightdata.containsKey("reset")) {
       rf.limitProtocols(rf.availableProtocols());
@@ -194,7 +194,7 @@ void MQTTtoPilight(char* topicOri, JsonObject& Pilightdata) {
       pub(subjectGTWPilighttoMQTT, "{\"Status\": \"Error\"}"); // Fail feedback
       Log.error(F("MQTTtoPilightProtocol Fail json" CR));
     }
-  } else if (TheengsUtils::cmpToMainTopic(topicOri, subjectMQTTtoPilight)) {
+  } else if (cmpToMainTopic(topicOri, subjectMQTTtoPilight)) {
     const char* message = Pilightdata["message"];
     Log.notice(F("MQTTtoPilight message: %s" CR), message);
     const char* protocol = Pilightdata["protocol"];
diff --git a/main/ZgatewayRF.ino b/main/ZgatewayRF.ino
index 30e6e51..baa4606 100644
--- a/main/ZgatewayRF.ino
+++ b/main/ZgatewayRF.ino
@@ -193,7 +193,7 @@ void MQTTtoRF(char* topicOri, char* datacallback) {
     valueBITS = (topic.substring(pos3, pos3 + 2)).toInt();
   }
 
-  if ((TheengsUtils::cmpToMainTopic(topicOri, subjectMQTTtoRF)) && (valuePRT == 0) && (valuePLSL == 0) && (valueBITS == 0)) {
+  if ((cmpToMainTopic(topicOri, subjectMQTTtoRF)) && (valuePRT == 0) && (valuePLSL == 0) && (valueBITS == 0)) {
     Log.trace(F("MQTTtoRF dflt" CR));
     mySwitch.setProtocol(1, 350);
     mySwitch.send(data, 24);
@@ -225,7 +225,7 @@ void MQTTtoRF(char* topicOri, char* datacallback) {
 
 #  if jsonReceiving
 void MQTTtoRF(char* topicOri, JsonObject& RFdata) { // json object decoding
-  if (TheengsUtils::cmpToMainTopic(topicOri, subjectMQTTtoRF)) {
+  if (cmpToMainTopic(topicOri, subjectMQTTtoRF)) {
     Log.trace(F("MQTTtoRF json" CR));
     uint64_t data = RFdata["value"];
     if (data != 0) {
diff --git a/main/ZgatewayRF2.ino b/main/ZgatewayRF2.ino
index 9097948..cea3217 100644
--- a/main/ZgatewayRF2.ino
+++ b/main/ZgatewayRF2.ino
@@ -243,7 +243,7 @@ void MQTTtoRF2(char* topicOri, char* datacallback) {
 #  if jsonReceiving
 void MQTTtoRF2(char* topicOri, JsonObject& RF2data) { // json object decoding
 
-  if (TheengsUtils::cmpToMainTopic(topicOri, subjectMQTTtoRF2)) {
+  if (cmpToMainTopic(topicOri, subjectMQTTtoRF2)) {
     Log.trace(F("MQTTtoRF2 json" CR));
     int boolSWITCHTYPE = RF2data["switchType"] | 99;
     bool success = false;
diff --git a/main/ZgatewayRFM69.ino b/main/ZgatewayRFM69.ino
index fb6dad9..b5bafa0 100644
--- a/main/ZgatewayRFM69.ino
+++ b/main/ZgatewayRFM69.ino
@@ -172,7 +172,7 @@ bool RFM69toMQTT(void) {
 
 #  if simpleReceiving
 void MQTTtoRFM69(char* topicOri, char* datacallback) {
-  if (TheengsUtils::cmpToMainTopic(topicOri, subjectMQTTtoRFM69)) {
+  if (cmpToMainTopic(topicOri, subjectMQTTtoRFM69)) {
     Log.trace(F("MQTTtoRFM69 data analysis" CR));
     char data[RF69_MAX_DATA_LEN + 1];
     memcpy(data, (void*)datacallback, RF69_MAX_DATA_LEN);
@@ -201,7 +201,7 @@ void MQTTtoRFM69(char* topicOri, char* datacallback) {
 #  endif
 #  if jsonReceiving
 void MQTTtoRFM69(char* topicOri, JsonObject& RFM69data) {
-  if (TheengsUtils::cmpToMainTopic(topicOri, subjectMQTTtoRFM69)) {
+  if (cmpToMainTopic(topicOri, subjectMQTTtoRFM69)) {
     const char* data = RFM69data["data"];
     Log.trace(F("MQTTtoRFM69 json data analysis" CR));
     if (data) {
diff --git a/main/ZgatewaySERIAL.ino b/main/ZgatewaySERIAL.ino
index f2c08f4..ed5320b 100644
--- a/main/ZgatewaySERIAL.ino
+++ b/main/ZgatewaySERIAL.ino
@@ -243,7 +243,7 @@ void sendMQTTfromNestedJson(JsonVariant obj, char* topic, int level, int maxLeve
 #  endif
 
 void XtoSERIAL(const char* topicOri, JsonObject& SERIALdata) {
-  if (TheengsUtils::cmpToMainTopic(topicOri, subjectXtoSERIAL) || SYSConfig.serial) {
+  if (cmpToMainTopic(topicOri, subjectXtoSERIAL) || SYSConfig.serial) {
     Log.trace(F(" MQTTtoSERIAL" CR));
     const char* prefix = SERIALdata["prefix"] | SERIALPre;
     const char* postfix = SERIALdata["postfix"] | SERIALPost;
diff --git a/main/ZgatewaySRFB.ino b/main/ZgatewaySRFB.ino
index df0640d..b3fceea 100644
--- a/main/ZgatewaySRFB.ino
+++ b/main/ZgatewaySRFB.ino
@@ -245,7 +245,7 @@ void MQTTtoSRFB(char* topicOri, JsonObject& SRFBdata) {
   // RF DATA ANALYSIS
   const char* raw = SRFBdata["raw"];
   int valueRPT = SRFBdata["repeat"] | 1;
-  if (TheengsUtils::cmpToMainTopic(topicOri, subjectMQTTtoSRFB)) {
+  if (cmpToMainTopic(topicOri, subjectMQTTtoSRFB)) {
     Log.trace(F("MQTTtoSRFB json" CR));
     if (raw) { // send raw in priority when defined in the json
       Log.trace(F("MQTTtoSRFB raw ok" CR));
diff --git a/main/ZwebUI.ino b/main/ZwebUI.ino
index 5ddb635..98ed55a 100644
--- a/main/ZwebUI.ino
+++ b/main/ZwebUI.ino
@@ -1686,7 +1686,7 @@ void WebUILoop() {
 
 void MQTTtoWebUI(char* topicOri, JsonObject& WebUIdata) { // json object decoding
   bool success = false;
-  if (TheengsUtils::cmpToMainTopic(topicOri, subjectMQTTtoWebUIset)) {
+  if (cmpToMainTopic(topicOri, subjectMQTTtoWebUIset)) {
     WEBUI_TRACE_LOG(F("MQTTtoWebUI json set" CR));
     // properties
     if (WebUIdata.containsKey("displayMetric")) {
diff --git a/main/main.ino b/main/main.ino
index 246b397..2e38c27 100644
--- a/main/main.ino
+++ b/main/main.ino
@@ -820,6 +820,22 @@ void SYSConfig_save() {
 void SYSConfig_save() {}
 #endif
 
+bool cmpToMainTopic(const char* topicOri, const char* toAdd) {
+  // Is string "<mqtt_topic><gateway_name><toAdd>" equal to "<topicOri>"?
+  // Compare first part with first chunk
+  if (strncmp(topicOri, mqtt_topic, strlen(mqtt_topic)) != 0)
+    return false;
+  // Move pointer of sizeof chunk
+  topicOri += strlen(mqtt_topic);
+  // And so on...
+  if (strncmp(topicOri, gateway_name, strlen(gateway_name)) != 0)
+    return false;
+  topicOri += strlen(gateway_name);
+  if (strncmp(topicOri, toAdd, strlen(toAdd)) != 0)
+    return false;
+  return true;
+}
+
 #if defined(ESP32)
 void SYSConfig_load() {
   StaticJsonDocument<JSON_MSG_BUFFER> jsonBuffer;
@@ -3148,7 +3164,7 @@ void readCntParameters(int index) {
 #endif
 
 void MQTTtoSYS(char* topicOri, JsonObject& SYSdata) { // json object decoding
-  if (TheengsUtils::cmpToMainTopic(topicOri, subjectMQTTtoSYSset)) {
+  if (cmpToMainTopic(topicOri, subjectMQTTtoSYSset)) {
     bool restartESP = false;
     Log.trace(F("MQTTtoSYS json" CR));
     if (SYSdata.containsKey("cmd")) {