diff --git a/build-flags/build_flags_stm32-noip b/build-flags/build_flags_stm32-noip
index 94b5161..fafe4e8 100644
--- a/build-flags/build_flags_stm32-noip
+++ b/build-flags/build_flags_stm32-noip
@@ -13,6 +13,9 @@
 -DMULTIVENT_DISABLE
 -DMOTOR_DISABLE
 
+-D CANDRV
+-D THERMOSTAT_CHECK_PERIOD=5000
+
 
 -DENABLE_HWSERIAL1
 -DdebugSerialPort=Serial1
@@ -21,8 +24,8 @@
 #-DFLASH_DATA_SECTOR 
 #-DFLASH_PAGE_NUMBER 
 
--D PIO_FRAMEWORK_ARDUINO_ENABLE_MASS_STORAGE
--D PIO_FRAMEWORK_ARDUINO_ENABLE_CDC_AND_MSC
+#  -D PIO_FRAMEWORK_ARDUINO_ENABLE_MASS_STORAGE
+#  -D PIO_FRAMEWORK_ARDUINO_ENABLE_CDC_AND_MSC
 
 #-DdebugSerialPort=SerialUSB
 #-DSerialPortType=USBSerial
diff --git a/lighthub/candriver.cpp b/lighthub/candriver.cpp
new file mode 100644
index 0000000..25e1d6d
--- /dev/null
+++ b/lighthub/candriver.cpp
@@ -0,0 +1,322 @@
+
+#ifdef  CANDRV
+
+#include <candriver.h>
+#include <Arduino.h>
+#include <main.h>
+
+#if defined(ARDUINO_ARCH_STM32)
+#include <STM32_CAN.h>
+STM32_CAN STMCan( CAN1, ALT, RX_SIZE_64, TX_SIZE_16 );
+#endif
+
+#if defined(ARDUINO_ARCH_ESP32)
+#include <CAN.h>
+#endif
+#if defined(__SAM3X8E__)
+#include <due_can.h>
+#endif
+
+#include <config.h>
+//#include <systemconfigdata.h>
+extern systemConfig sysConf;
+
+
+void printFrame(datagram_t * frame, uint8_t len ) {
+
+   debugSerial.print(" Data: 0x");
+   for (int count = 0; count < len; count++) {
+       debugSerial.print(frame->data[count], HEX);
+       debugSerial.print(" ");
+   }
+   debugSerial.println();
+}
+
+
+bool canDriver::upTime(uint32_t ut)
+{
+  //  return 0;
+ canid_t id;
+ datagram_t packet;
+
+ id.reserve=0;
+ id.status=1;
+ id.payloadType=payloadType::metric;  
+ id.deviceId=controllerId;
+ id.itemId=metricType::UpTime;
+
+ packet.metric1=ut;
+
+ debugSerial<<("UpTime")<<endl;   
+ return write (id.id, &packet, 4);
+}
+
+bool canDriver::salt(uint32_t salt)
+{
+ canid_t id;
+ datagram_t packet;
+
+ id.reserve=0;
+ id.status=1;
+ id.payloadType=payloadType::metric;  
+ id.deviceId=controllerId;
+ id.itemId=metricType::Salt;
+
+ packet.metric1=salt;
+
+ debugSerial<<("Salt")<<endl;   
+ return write (id.id, &packet, 4);
+}
+
+bool canDriver::lookupMAC()
+{
+   // return 0;
+    canid_t id;
+ datagram_t packet;
+ bool       res;
+
+ id.reserve=0;
+ id.status=0;
+ id.payloadType=payloadType::lookupMAC;  
+ id.deviceId=0;
+ id.itemId=0; //CRC?
+
+ memcpy(packet.mac,sysConf.mac,6);
+
+ debugSerial<<("Lookup MAC")<<endl;   
+  res=write (id.id, &packet, 6);
+ if (res) state=canState::MACLookup; 
+    else  state=canState::Error; 
+    responseTimer=millisNZ();
+ return res;
+}
+
+bool canDriver::sendRemoteID(macAddress mac)
+{
+ canid_t id;
+ //datagram_t packet;
+  bool       res=false;
+
+ id.reserve=0;
+ id.status=1; //response
+ id.payloadType=payloadType::lookupMAC;  
+ id.deviceId=100; //Retrieved controllerID
+ id.itemId=200;   //CRC of remote config
+ //packet.data[0]=1;
+
+ debugSerial<<("Send remote ID")<<endl;   
+ res = write (id.id);//,&packet,8);
+ if (res) state=canState::HaveId; 
+    else  state=canState::Error; 
+//    responseTimer=millisNZ(); ????????
+return res;
+}
+
+
+bool canDriver::begin()
+            { 
+            ready=false;    
+            //STM32  
+            #if defined(ARDUINO_ARCH_STM32)
+            //Can= new STM32_CAN( CAN1, ALT );
+            //if (!Can) return false;
+            STMCan.begin(); //with retransmission
+            STMCan.setBaudRate(125000);
+            // STMCan.setFilter( 0, 0x153, 0x1FFFFFFF );
+            #endif
+
+            //ESP
+            #if defined(ARDUINO_ARCH_ESP32)
+            CAN.setPins(GPIO_NUM_35,GPIO_NUM_5);//(rx, tx); 
+            // start the CAN bus at 500 kbps
+            if (!CAN.begin(125000)) {return false;  }
+            #endif    
+
+            #if defined(__SAM3X8E__)
+            Can0.begin(CAN_BPS_125K);
+            #endif
+
+            debugSerial<<"CAN initialized"<<endl;
+            ready=true;
+            return true;
+             }
+
+void canDriver::Poll()
+            {  
+               // return ;
+                if (!ready) return;
+               //STM32 
+               #if defined(ARDUINO_ARCH_STM32)
+               if (STMCan.read(CAN_RX_msg)) 
+               {
+               processPacket( CAN_RX_msg.id, (datagram_t*) CAN_RX_msg.buf,CAN_RX_msg.len);
+               }
+
+               #endif
+
+            #if defined(ARDUINO_ARCH_ESP32) 
+            // try to parse packet
+            int packetSize = CAN.parsePacket();
+
+            if (packetSize ){//|| CAN.packetId() != -1) {
+                // received a packet
+                debugSerialPort.print("Received ");
+
+                if (CAN.packetExtended()) {
+                debugSerialPort.print("extended ");
+                }
+
+                if (CAN.packetRtr()) {
+                // Remote transmission request, packet contains no data
+                debugSerialPort.print("RTR ");
+                }
+
+                debugSerialPort.print("packet with id 0x");
+                debugSerialPort.print(CAN.packetId(), HEX);
+
+                if (CAN.packetRtr()) {
+                debugSerialPort.print(" and requested length ");
+                debugSerialPort.println(CAN.packetDlc());
+                } else {
+                debugSerialPort.print(" and length ");
+                //debugSerialPort.println(packetSize);
+                debugSerialPort.println(CAN.packetDlc());
+
+                datagram_t packet;
+                // only print packet data for non-RTR packets
+                int i=0;
+                while (CAN.available()) {
+                    packet.data[i++]=CAN.read();
+                    //debugSerialPort.print((char)CAN.read());
+                    if (i>=8) break;
+                }
+                debugSerialPort.println();
+
+                processPacket( CAN.packetId(), &packet,i);
+                }
+               }
+                #endif
+
+                //DUE
+                #if defined(__SAM3X8E__)
+                CAN_FRAME incoming;
+                if (Can0.available() > 0) {
+                                                Can0.read(incoming); 
+                                                printFrame(incoming);
+                                            }
+
+                #endif
+
+
+//State machine
+
+switch (state)
+{
+    case canState::MACLookup:
+    if (isTimeOver(responseTimer,millis(),1000UL)) 
+                            {
+                            responseTimer=millisNZ();
+                            state=canState::Error;
+                            errorSerial<<"CAN Timeout"<<endl;
+                            }
+    break;
+
+    case canState::Error:
+        if (isTimeOver(responseTimer,millis(),10000UL)) 
+        lookupMAC();
+    break;
+
+//    case canState::HaveId:
+
+}
+
+}
+
+bool canDriver::processPacket(uint32_t rawid, datagram_t *packet, uint8_t len, bool rtr)
+{
+canid_t id;
+id.id = rawid;
+debugSerial.print("CAN Received ");
+debugSerialPort.print(len);
+debugSerialPort.print(" bytes id 0x");
+debugSerialPort.println(id.id,HEX);
+
+printFrame(packet,len);
+if (id.status)
+    //Responces
+    switch (state)
+    {
+        case canState::MACLookup:
+        if ((id.payloadType == payloadType::lookupMAC) && (len>=6))
+           {
+                debugSerial<<"Got Controller CAN addr: "<<id.deviceId<<endl;
+                controllerId=id.deviceId;
+           }
+        return true; 
+        case canState::HaveId:
+        break;
+
+        case canState::Error:
+        return false;
+    }
+else //Requests
+
+
+    {
+
+        if (id.payloadType == payloadType::lookupMAC)
+            {             
+               return sendRemoteID(packet->mac);
+               //debugSerial<<"ID requested"<<endl;
+            }
+
+
+    }
+return false;
+}
+
+
+bool canDriver::write(uint32_t msg_id, datagram_t * buf, uint8_t size)
+            {   //return 0;
+                if (!ready) errorSerial<<"CAN not initialized"<<endl;
+                bool res;
+                if (size>8) size = 8;
+
+                //STM32 
+                #if defined(ARDUINO_ARCH_STM32)
+                //if (!Can) return 0;
+                if (buf) for(uint8_t i=0;i<size; i++) CAN_TX_msg.buf[i]=buf->data[i];
+                CAN_TX_msg.id = msg_id;
+                CAN_TX_msg.flags.extended = 1;  // To enable extended ID
+                CAN_TX_msg.len=size;
+                if (res=STMCan.write(CAN_TX_msg)) debugSerial<<("CAN Wrote ")<<size<<" bytes"<<endl;
+                    else debugSerial.println("CAN Write error");
+                return res;    
+                #endif
+
+                //ESP
+                #if defined(ARDUINO_ARCH_ESP32)
+                CAN.beginExtendedPacket(msg_id,size);
+                CAN.write(buf->data,size);
+                //for(uint8_t i=0;i<size; i++) CAN.write(buf[i]);
+                if (res=CAN.endPacket()) debugSerial.println("CAN Wrote");
+                    else debugSerial.println("CAN Write error");
+                return res;
+                #endif
+
+                #if defined(__SAM3X8E__)
+                CAN_FRAME outGoting;
+	            outgoing.id = 0x400;
+                outgoing.extended = true;
+                outgoing.priority = 4; //0-15 lower is higher priority
+                
+                outgoing.data.s0 = 0xFEED;
+                outgoing.data.byte[2] = 0xDD;
+                outgoing.data.byte[3] = 0x55;
+                outgoing.data.high = 0xDEADBEEF;
+                Can0.sendFrame(outgoing);
+                #endif
+        }
+    
+
+#endif 
diff --git a/lighthub/candriver.h b/lighthub/candriver.h
new file mode 100644
index 0000000..bc67f27
--- /dev/null
+++ b/lighthub/candriver.h
@@ -0,0 +1,125 @@
+#pragma once
+#ifdef  CANDRV
+
+#if defined(ARDUINO_ARCH_STM32)
+#if !defined(HAL_CAN_MODULE_ENABLED)
+#define HAL_CAN_MODULE_ENABLED
+#endif
+#include <STM32_CAN.h>
+#endif
+
+#include <itemCmd.h>
+//#include <config.h> NO!
+
+typedef uint8_t macAddress[6];
+#pragma pack(push, 1)
+typedef union 
+{
+  uint32_t id;
+  struct 
+  {
+      uint16_t itemId; 
+      uint8_t deviceId;
+      uint8_t payloadType:4;
+      uint8_t status:1; 
+      uint8_t reserve:3; //0
+
+  };
+} canid_t;
+
+enum payloadType
+{
+    itemCommand=1,
+    lookupMAC=2,
+    configFrame=3,
+    OTAFrame=4,
+    auth=5,
+    metric=6,
+    sysCmd=7
+};
+
+enum metricType
+{
+    MAC=1,
+    IP=2,
+    NetMask=3,
+    GW=4,
+    DNS=5,
+    UpTime=6,
+    Salt=7
+};
+
+enum commandType
+{
+    reboot=1,
+    get=2,
+    save=3,
+    load=4
+};
+
+
+#define MAXCANID 0x1FFFFFFF
+// Request item status: id.status=1;deviceId=[0xFF | deviceId];itemId=x; RTR bit=true 
+// Request on config: id.status=0;deviceId=0;itemId=x payload.mac=mac;crc16=crc_current_config 
+
+
+
+typedef union {
+    uint8_t data[8];
+    struct {
+     itemCmdStore      cmd;       
+     itemArgStore      param;       
+    };
+    struct {
+      macAddress        mac;
+      uint16_t          currentConfCRC;       
+    };    
+    struct {
+      uint8_t           sysCmd;       
+      uint8_t           sysCmdData[7];        
+    };    
+    struct {
+      uint32_t   metric1;       
+      uint32_t   metric2;      
+    };
+} datagram_t;
+
+
+enum canState
+{
+Unknown=0,
+MACLookup=2,
+HaveId=3,
+ConfigFrameRequested=4,
+ConfigFrameReceived=5,
+ConfigLoaded=6,
+Error=7
+};
+#pragma pack(pop)
+
+class canDriver 
+{
+public:
+canDriver(){ready=false; controllerId=0; responseTimer=0; state=canState::Unknown;};
+bool upTime(uint32_t ut);
+bool salt(uint32_t salt);
+bool lookupMAC();
+bool sendRemoteID(macAddress mac);
+bool begin();
+void Poll();
+bool processPacket(uint32_t rawid, datagram_t *packet, uint8_t len, bool rtr=false);
+bool write(uint32_t msg_id, datagram_t * buf = NULL, uint8_t size=0);          
+private:
+
+
+    #if defined(ARDUINO_ARCH_STM32)
+    CAN_message_t CAN_RX_msg;
+    CAN_message_t CAN_TX_msg;
+    #endif
+    bool ready;
+    uint8_t controllerId;
+    canState state;
+    uint32_t responseTimer;
+
+};
+#endif // 
\ No newline at end of file
diff --git a/lighthub/main.cpp b/lighthub/main.cpp
index 1411c53..fca9086 100644
--- a/lighthub/main.cpp
+++ b/lighthub/main.cpp
@@ -67,6 +67,11 @@ static char syslogDeviceHostname[16];
 flashStream sysConfStream;
 systemConfig sysConf(&sysConfStream);
 
+
+#ifdef CANDRV
+canDriver LHCAN;
+#endif
+
 extern long  timer0_overflow_count;	 
 #ifdef WIFI_ENABLE
 WiFiClient ethClient;
@@ -104,7 +109,7 @@ const char verval_P[] PROGMEM = QUOTE(PIO_SRC_REV);
 char cryptoKey[] = QUOTE(SHAREDSECRET);
 #endif
 
-#if defined(__SAM3X8E__)
+#if defined(__SAM3X8E__) || defined(ARDUINO_ARCH_STM32)
 UID UniqueID;
 #endif
 
@@ -482,7 +487,7 @@ else
  return;// -7;   
 }
 
-
+#endif //NOIP
 
 void printMACAddress() {
     //macAddress * mac = sysConf.getMAC();
@@ -494,7 +499,7 @@ void printMACAddress() {
 }
 }
 
-#endif //NOIP
+
 
 char* getStringFromConfig(aJsonObject * a, int i)
 {
@@ -1677,18 +1682,7 @@ int cmdFunctionOTAPwd(int arg_cnt, char **args)
     return 200;
 }
 
-int cmdFunctionSetMac(int arg_cnt, char **args) {
-    char dummy;
-    uint8_t mac[6];
-    if (sscanf(args[1], "%x:%x:%x:%x:%x:%x%c", &mac[0], &mac[1], &mac[2], &mac[3], &mac[4], &mac[5], &dummy) < 6) {
-        errorSerial<<F("could not parse: ")<<args[1];
-        return 400;
-    }
-    sysConf.setMAC(mac);
-    printMACAddress();
-    infoSerial<<F("Updated\n");
-    return 200;
-}
+
 
 int cmdFunctionGet(int arg_cnt, char **args) {
 
@@ -1736,6 +1730,23 @@ return 500;
 
 #endif //NOIP
 
+int cmdFunctionSetMac(int arg_cnt, char **args) {
+    char dummy;
+    uint8_t mac[6];
+    if (sscanf(args[1], "%x:%x:%x:%x:%x:%x%c", &mac[0], &mac[1], &mac[2], &mac[3], &mac[4], &mac[5], &dummy) < 6) {
+        errorSerial<<F("could not parse: ")<<args[1];
+        return 400;
+    }
+    sysConf.setMAC(mac);
+    printMACAddress();
+    
+    #ifdef CANDRV
+    LHCAN.lookupMAC();
+    #endif
+
+    infoSerial<<F("Updated\n");
+    return 200;
+}
 int cmdFunctionClearEEPROM(int arg_cnt, char **args){
    #ifdef FS_STORAGE
    if (SPIFFS.format()) infoSerial<<F("FS Formatted\n");
@@ -2319,7 +2330,7 @@ while  ((digitalRead(CONFIG_CLEAN_PIN)==LOW) && !needClean)
   serialDebugLevel=sysConf.getSerialDebuglevel();
   udpDebugLevel=sysConf.getUdpDebuglevel();
 
-   #if defined(__SAM3X8E__)
+   #if defined(__SAM3X8E__) || defined(ARDUINO_ARCH_STM32)
   memset(&UniqueID,0,sizeof(UniqueID));
   #endif
 
@@ -2338,9 +2349,10 @@ while  ((digitalRead(CONFIG_CLEAN_PIN)==LOW) && !needClean)
   //  Serial.print("Sig4=");
   //  Serial.println(FLASH_START[0],HEX); 
 
-#if not defined(NOIP)  
+
+//#if not defined(NOIP)  
      setupMacAddress(); //тут почему-то не считывается из флэш
-#endif     
+//#endif     
 
 #ifdef _modbus
         #ifdef CONTROLLINO
@@ -2394,7 +2406,12 @@ WiFi.onEvent(WiFiEvent);
     #endif
 
  #endif //NOIP       
-        loadConfigFromEEPROM();    
+loadConfigFromEEPROM();    
+
+#ifdef CANDRV
+LHCAN.begin();
+LHCAN.lookupMAC();
+#endif
 }
 
 void printFirmwareVersionAndBuildOptions() {
@@ -2584,15 +2601,21 @@ infoSerial<<F("\n(+)MERCURY");
 #else
 infoSerial<<F("\n(-)MERCURY");
 #endif
+
+#ifdef CANDRV
+infoSerial<<F("\n(+)CAN");
+#else
+infoSerial<<F("\n(-)CAN");
+#endif
 //#ifdef IPMODBUS
 //infoSerial<<F("\n(+)IPMODBUS");
 //#endif
 infoSerial<<endl;
 
 //    WDT_Disable( WDT ) ;
-#if defined(__SAM3X8E__)
+#if defined(__SAM3X8E__) || defined(ARDUINO_ARCH_STM32)
 
-    debugSerial<<F("Reading 128 bits unique identifier")<<endl ;
+    debugSerial<<F("Reading unique identifier")<<endl ;
     ReadUniqueID( UniqueID.UID_Long ) ;
 
     infoSerial<< F ("ID: ");
@@ -2611,7 +2634,8 @@ void publishStat(){
   char intbuf[16];
   uint32_t ut = millis()/1000UL;
   #if not defined (NOIP)
-  if (!mqttClient.connected()  || ethernetIdleCount) return;
+  if (mqttClient.connected()  &&  !ethernetIdleCount) 
+  {
     setTopic(topic,sizeof(topic),T_DEV);
     strncat_P(topic, stats_P, sizeof(topic)-1);
     strncat(topic, "/", sizeof(topic));
@@ -2630,19 +2654,34 @@ void publishStat(){
     strncat_P(topic, state_P, sizeof(topic)-1);
     strncpy_P(intbuf, ready_P, sizeof(intbuf)-1);
     mqttClient.publish(topic,intbuf,true);
+  }
 #endif //NOIP
+
 #ifdef CRYPT
     RNG.rand((uint8_t *) &cryptoSalt,sizeof(cryptoSalt));
+    #if not defined (NOIP)
+    if (mqttClient.connected()  &&  !ethernetIdleCount) 
+   {
     setTopic(topic,sizeof(topic),T_DEV);
     //strncat_P(topic, stats_P, sizeof(topic)-1);
     //strncat(topic, "/", sizeof(topic));
     strncat_P(topic, salt_P, sizeof(topic)-1);
     printUlongValueToStr(intbuf, cryptoSalt);
     mqttClient.publish(topic,intbuf,true);
+   }
+    #endif
+
+    #ifdef CANDRV
+    LHCAN.salt(cryptoSalt);
+    #endif
 #endif    
+
+#ifdef CANDRV
+LHCAN.upTime(ut);
+#endif
 }
 
-#if not defined (NOIP)
+//#if not defined (NOIP)
 void setupMacAddress() {  
 //Check MAC, stored in NVRAM
 
@@ -2661,7 +2700,7 @@ if (!sysConf.getMAC()) {
     WiFi.begin();
     WiFi.macAddress(sysConf.mac);
 
-    #elif defined(__SAM3X8E__)
+    #elif defined(__SAM3X8E__) || defined(ARDUINO_ARCH_STM32)
     //Lets make MAC from MPU serial#
     sysConf.mac[0]=0xDE;
 
@@ -2674,8 +2713,12 @@ if (!sysConf.getMAC()) {
     #endif
     }
     printMACAddress();
+
+    #ifdef CANDRV
+   // LHCAN.lookupMAC();
+    #endif
 }
-#endif //NOIP
+//#endif //NOIP
 
 void setupCmdArduino() {
     //cmdInit(uint32_t(SERIAL_BAUD));
@@ -2757,9 +2800,8 @@ void loop_main() {
     if (items) {
         if (isNotRetainingStatus()) pollingLoop();
         yield();
-        thermoLoop();
     }
-
+    thermoLoop(); 
     yield();
     inputLoop(CHECK_INPUT);
 
@@ -2774,6 +2816,10 @@ void loop_main() {
 if (initializedListeners) ipmodbusLoop();
 #endif
 
+#ifdef CANDRV
+LHCAN.Poll();
+#endif
+
 }
 
 //static uint32_t tm=0;
@@ -2814,6 +2860,10 @@ inputLoop(CHECK_INPUT);
 #ifdef IPMODBUS
 if (initializedListeners) ipmodbusLoop();
 #endif
+
+#ifdef CANDRV
+LHCAN.Poll();
+#endif
 }
 
 #if not defined (NOIP)   
@@ -2837,6 +2887,10 @@ void modbusIdle(void) {
     yield();
     inputLoop(CHECK_INPUT);
 
+#ifdef CANDRV
+    LHCAN.Poll();
+#endif   
+
  #if not defined (NOIP)
     if (lanLoop() > HAVE_IP_ADDRESS) 
     { // Begin network runners
@@ -3042,8 +3096,17 @@ void thermoLoop(void) {
 
  if (!isTimeOver(timerThermostatCheck,millis(),THERMOSTAT_CHECK_PERIOD))
         return;
+
+timerThermostatCheck = millis();// + THERMOSTAT_CHECK_PERIOD;
+publishStat();
+
+#ifndef DISABLE_FREERAM_PRINT
+    //(thermostatCheckPrinted) ? 
+    debugSerial<<F("RAM=")<<freeRam()<<F(" Locks:")<<configLocked<<F(" Timer:")<<timerCount<<endl;
+#endif
+ 
     if (!items) return;
-    bool thermostatCheckPrinted = false;
+    //bool thermostatCheckPrinted = false;
     configLocked++;
     for (aJsonObject *thermoItem = items->child; thermoItem; thermoItem = thermoItem->next) {
         if ((thermoItem->type == aJson_Array) && (aJson.getArrayItem(thermoItem, I_TYPE)->valueint == CH_THERMO)) 
@@ -3092,17 +3155,11 @@ void thermoLoop(void) {
                          }
                    }
                  else debugSerial<<F(" Expired\n");  
-                    thermostatCheckPrinted = true;  
+                 //   thermostatCheckPrinted = true;  
         } //item is termostat
     } //for
   configLocked--;
-    timerThermostatCheck = millis();// + THERMOSTAT_CHECK_PERIOD;
-publishStat();
-#ifndef DISABLE_FREERAM_PRINT
-    (thermostatCheckPrinted) ? debugSerial<<F("\nRAM=")<<freeRam()<<F(" Locks:")<<configLocked: debugSerial<<F(" ")<<freeRam()<<F(" Locks:")<<configLocked;
-     debugSerial<<F(" Timer:")<<timerCount<<endl;
-#endif
- 
+
 
 }
 
diff --git a/lighthub/main.h b/lighthub/main.h
index 1d57976..f03378d 100644
--- a/lighthub/main.h
+++ b/lighthub/main.h
@@ -206,6 +206,9 @@ extern Streamlog  errorSerial;
 #include "stdarg.h"
 #include "item.h"
 #include "inputs.h"
+#ifdef CANDRV
+#include <candriver.h>
+#endif
 
 #ifdef _artnet
 extern Artnet *artnet;
@@ -243,15 +246,17 @@ bool isNotRetainingStatus();
 
 #if not defined (NOIP)
 void mqttCallback(char *topic, byte *payload, unsigned int length);
-void printMACAddress();
 lan_status lanLoop();
 int loadConfigFromHttp();
 void onInitialStateInitLAN();
 void onMQTTConnect();
 void ip_ready_config_loaded_connecting_to_broker();
-void setupMacAddress();
+
 #endif
 
+void setupMacAddress();
+void printMACAddress();
+
 #ifndef OWIRE_DISABLE
 void Changed(int i, DeviceAddress addr, float currentTemp);
 #endif
diff --git a/lighthub/options.h b/lighthub/options.h
index 56daece..d117a17 100644
--- a/lighthub/options.h
+++ b/lighthub/options.h
@@ -129,7 +129,9 @@
 
 #define INTERVAL_SLOW_POLLING 1000
 //#define INTERVAL_POLLING      100
+#ifndef THERMOSTAT_CHECK_PERIOD
 #define THERMOSTAT_CHECK_PERIOD 30000
+#endif
 
 #ifndef OW_UPDATE_INTERVAL
 #define OW_UPDATE_INTERVAL 5000
diff --git a/lighthub/systemconfigdata.h b/lighthub/systemconfigdata.h
index 5c582de..8772497 100644
--- a/lighthub/systemconfigdata.h
+++ b/lighthub/systemconfigdata.h
@@ -1,3 +1,4 @@
+#pragma once
 #define SYSCONF_OFFSET 0
 #define EEPROM_offset_NotAlligned SYSCONF_OFFSET+sizeof(systemConfigData)
 #define SYSCONF_SIZE EEPROM_offsetJSON
diff --git a/lighthub/utils.cpp b/lighthub/utils.cpp
index 669874c..908fb90 100644
--- a/lighthub/utils.cpp
+++ b/lighthub/utils.cpp
@@ -368,6 +368,21 @@ uint32_t ReadUniqueID( uint32_t * pdwUniqueID )
    
     return  *(uint32_t *)(IFLASH1_ADDR + 128); // dont remove: SAM defect workaround - MPU dont leave Unique Identifier mode until read flash out UID of range 
     
+#elif defined(ARDUINO_ARCH_STM32)
+#define UID_BASE 0x1FFFF7E8
+
+uint16_t *idBase0 = (uint16_t*)(UID_BASE);
+uint16_t *idBase1 = (uint16_t*)(UID_BASE + 0x02);
+uint32_t *idBase2 = (uint32_t*)(UID_BASE + 0x04);
+uint32_t *idBase3 = (uint32_t*)(UID_BASE + 0x08);
+
+pdwUniqueID[0] = *idBase0;
+pdwUniqueID[1] = *idBase1;
+pdwUniqueID[2] = *idBase2;
+pdwUniqueID[3] = *idBase3;
+
+return 1;
+
 #else
 return 0;    
 #endif
diff --git a/platformio.ini b/platformio.ini
index a1ee855..e06b7dc 100644
--- a/platformio.ini
+++ b/platformio.ini
@@ -258,7 +258,7 @@ lib_deps =
 	;ArduinoMDNS
 	;ESPmDNS
 	https://github.com/khoih-prog/TimerInterrupt_Generic.git
-
+    https://github.com/sandeepmistry/arduino-CAN.git
 
 [env:due]
 ;Experimental target with universal Ethernet Library
@@ -326,6 +326,8 @@ lib_deps =
 	ArduinoMDNS
 	https://github.com/khoih-prog/TimerInterrupt_Generic.git
 	rweather/Crypto
+	collin80/can_common
+    collin80/due_can
 monitor_speed = 115200
 
 [env:mega2560slim]
@@ -977,6 +979,7 @@ lib_deps =
 ;	ArduinoMDNS
 	https://github.com/khoih-prog/TimerInterrupt_Generic.git
 	;https://github.com/anklimov/ModbusMaster
+	pazi88/STM32_CAN
 
 monitor_speed = 115200