MQTT topics config & CallBack refactoring

check_custom_build_flags_esp32.sh

@@ -3,6 +3,8 @@ export FLAGS="$FLAGS -DPIO_SRC_REV="$(git log --pretty=format:%h_%ad -1 --date=s
 export FLAGS="$FLAGS -DDMX_DISABLE"
 export FLAGS="$FLAGS -DMODBUS_DISABLE"
 export FLAGS="$FLAGS -DOWIRE_DISABLE"
+export FLAGS="$FLAGS -DDHT_DISABLE"
+export FLAGS="$FLAGS -DCOUNTER_DISABLE"
 #export FLAGS="$FLAGS -std=gnu++11"
 CUSTOM_BUILD_FLAGS_FILE=custom-build-flags/build_flags_esp32.sh
 if [ -f $CUSTOM_BUILD_FLAGS_FILE ]; then

check_custom_build_flags_esp8266.sh

@@ -1,5 +1,6 @@
 #! /bin/bash
 export FLAGS="$FLAGS -DMODBUS_DISABLE"
+export FLAGS="$FLAGS -DCOUNTER_DISABLE"
 export FLAGS="$FLAGS -DPIO_SRC_REV="$(git log --pretty=format:%h_%ad -1 --date=short)
 CUSTOM_BUILD_FLAGS_FILE=custom-build-flags/build_flags_esp8266.sh
 if [ -f $CUSTOM_BUILD_FLAGS_FILE ]; then

check_custom_build_flags_nrf52840.sh

@@ -6,7 +6,7 @@ export FLAGS="$FLAGS -DMODBUS_DISABLE"
 export FLAGS="$FLAGS -DOWIRE_DISABLE"
 export FLAGS="$FLAGS -std=gnu++11"
 export FLAGS="$FLAGS -DWIFI_MANAGER_DISABLE"
-export FLAGS="$FLAGS -DDHT_COUNTER_DISABLE"
+export FLAGS="$FLAGS -DCOUNTER_DISABLE"
 
 CUSTOM_BUILD_FLAGS_FILE=custom-build-flags/build_flags_nrf52840.sh
 if [ -f $CUSTOM_BUILD_FLAGS_FILE ]; then

check_custom_build_flags_stm32.sh

@@ -4,6 +4,8 @@ export FLAGS="$FLAGS -DPIO_SRC_REV="$(git log --pretty=format:%h_%ad -1 --date=s
 export FLAGS="$FLAGS -DDMX_DISABLE"
 export FLAGS="$FLAGS -DMODBUS_DISABLE"
 export FLAGS="$FLAGS -DOWIRE_DISABLE"
+export FLAGS="$FLAGS -DDHT_DISABLE"
+export FLAGS="$FLAGS -DCOUNTER_DISABLE"
 if [ -f $CUSTOM_BUILD_FLAGS_FILE ]; then
     source $CUSTOM_BUILD_FLAGS_FILE
 fi

lighthub/inputs.cpp

@@ -23,7 +23,7 @@ e-mail    anklimov@gmail.com
 #include "utils.h"
 #include <PubSubClient.h>
 
-#ifndef DHT_COUNTER_DISABLE
+#ifndef DHT_DISABLE
 #if defined(ARDUINO_ARCH_ESP8266) || defined(ARDUINO_ARCH_ESP32)
 #include <DHTesp.h>
 
@@ -34,7 +34,7 @@ e-mail    anklimov@gmail.com
 
 extern PubSubClient mqttClient;
 
-#ifndef DHT_COUNTER_DISABLE
+#ifndef COUNTER_DISABLE
 static volatile unsigned long nextPollMillisValue[5];
 static volatile int nextPollMillisPin[5] = {0,0,0,0,0};
 #if defined(ARDUINO_ARCH_AVR)
@@ -110,7 +110,7 @@ int Input::poll() {
     if (!isValid()) return -1;
     if (0) ;
 
-    #ifndef DHT_COUNTER_DISABLE
+    #ifndef DHT_DISABLE
     else if (inType & IN_DHT22)
         dht22Poll();
     else if (inType & IN_COUNTER)
@@ -127,7 +127,7 @@ int Input::poll() {
   //  contactPoll();
 }
 
-#ifndef DHT_COUNTER_DISABLE
+#ifndef COUNTER_DISABLE
 void Input::counterPoll() {
     if(nextPollTime()>millis())
         return;
@@ -172,7 +172,7 @@ void Input::counterPoll() {
 }
 #endif
 
-#ifndef DHT_COUNTER_DISABLE
+#ifndef COUNTER_DISABLE
 void Input::attachInterruptPinIrq(int realPin, int irq) {
     pinMode(realPin, INPUT);
     int real_irq;
@@ -389,7 +389,7 @@ void Input::analogPoll() {
     // Mapping
     if (inputMap && inputMap->type == aJson_Array)
      {
-     int max;   
+     int max;
      if (aJson.getArraySize(inputMap)>=4)
         mappedInputVal  = map (mappedInputVal,
               aJson.getArrayItem(inputMap, 0)->valueint,

lighthub/item.cpp

@@ -42,7 +42,7 @@ extern aJsonObject *pollingItem;
 
 extern PubSubClient mqttClient;
 //extern char  outprefix[];
-const char outprefix[] PROGMEM = OUTTOPIC;
+//const char outprefix[] PROGMEM = OUTTOPIC;
 
 static unsigned long lastctrl = 0;
 static aJsonObject *lastobj = NULL;
@@ -884,7 +884,9 @@ int Item::checkFM() {
     char *outch;
     char addrstr[32];
 
-    strcpy_P(addrstr, outprefix);
+    //strcpy_P(addrstr, outprefix);
+    setTopic(addrstr,sizeof(addrstr),T_OUT);
+
     strncat(addrstr, itemArr->name, sizeof(addrstr) - 1);
     strncat(addrstr, "_stat", sizeof(addrstr) - 1);
 
@@ -1164,7 +1166,9 @@ int Item::SendStatus(short cmd, short n, int *Par, boolean deffered) {
         //char addrbuf[17];
         char valstr[16] = "";
 
-        strcpy_P(addrstr, outprefix);
+        //strcpy_P(addrstr, outprefix);
+        setTopic(addrstr,sizeof(addrstr),T_OUT);
+
         strncat(addrstr, itemArr->name, sizeof(addrstr));
 
 

lighthub/lighthub.ino

@@ -1,7 +1,11 @@
 #include "main.h"
 void setup(){
-    setup_main();
+  //if (millis()>1000)
+            setup_main();
+  //else Serial.println("Hello");
+  //delay(1000);
 }
 void loop(){
-    loop_main();
+      //if (millis()>10000) 
+      loop_main();
 }

lighthub/main.cpp

@@ -115,13 +115,13 @@ unsigned long nextSyslogPingTime;
 
 lan_status lanStatus = INITIAL_STATE;
 
-const char outprefix[] PROGMEM = OUTTOPIC;
+
-const char inprefix[] PROGMEM = INTOPIC;
 const char configserver[] PROGMEM = CONFIG_SERVER;
 
 
 unsigned int UniqueID[5] = {0,0,0,0,0};
-
+char *deviceName = NULL;
+aJsonObject *topics = NULL;
 aJsonObject *root = NULL;
 aJsonObject *items = NULL;
 aJsonObject *inputs = NULL;
@@ -181,29 +181,63 @@ void mqttCallback(char *topic, byte *payload, unsigned int length) {
         debugSerial<<((char) payload[i]);
     debugSerial<<endl;
 
-    if(!strcmp(topic,CMDTOPIC)) {
+
-        cmd_parse((char *)payload);
-        return;
-    }
 
     short intopic = 0;
+    short pfxlen  = 0;
+    char * itemName;
     {
         char buf[MQTT_TOPIC_LENGTH + 1];
-        strncpy_P(buf, inprefix, sizeof(buf));
+//        strncpy_P(buf, inprefix, sizeof(buf));
-        intopic = strncmp(topic, buf, strlen(inprefix));
+
+if  (lanStatus == RETAINING_COLLECTING)
+{
+  setTopic(buf,sizeof(buf),T_OUT);
+  pfxlen = strlen(buf);
+  intopic = strncmp(topic, buf, pfxlen);
+}
+
+else
+{
+       setTopic(buf,sizeof(buf),T_BCST);
+        pfxlen = strlen(buf);
+        intopic = strncmp(topic, buf, pfxlen );
+
+        if (intopic)
+        {
+        setTopic(buf,sizeof(buf),T_DEV);
+        pfxlen = strlen(buf);
+        intopic = strncmp(topic, buf, pfxlen);
+        }
+}
+
+
+
     }
+
     // in Retaining status - trying to restore previous state from retained output topic. Retained input topics are not relevant.
-    if ((lanStatus == RETAINING_COLLECTING) && !intopic) {
+    if (intopic) {
         debugSerial<<F("Skipping..");
         return;
     }
-    char subtopic[MQTT_SUBJECT_LENGTH] = "";
+
-    //  int cmd = 0;
+    itemName=topic+pfxlen;
-    //cmd = txt2cmd((char *) payload);
+
+    if(!strcmp(itemName,CMDTOPIC)) {
+        cmd_parse((char *)payload);
+        return;
+    }
+    //char subtopic[MQTT_SUBJECT_LENGTH] = "";
     char *t;
-    if (t = strrchr(topic, '/'))
+    if (t = strchr(itemName, '/'))
-        strncpy(subtopic, t + 1, MQTT_SUBJECT_LENGTH - 1);
+      {
-    Item item(subtopic);
+        *t = 0;
+        t++;
+        debugSerial<<F("Subtopic:")<<t<<endl;
+        //strncpy(subtopic, t + 1, MQTT_SUBJECT_LENGTH - 1);
+      }
+      debugSerial<<F("Item:")<<itemName<<endl;
+    Item item(itemName);
     if (item.isValid()) {
         if (item.itemType == CH_GROUP && (lanStatus == RETAINING_COLLECTING))
             return; //Do not restore group channels - they consist not relevant data
@@ -211,14 +245,7 @@ void mqttCallback(char *topic, byte *payload, unsigned int length) {
     } //valid item
 }
 
-void printIPAddress(IPAddress ipAddress) {
+
-    for (byte i = 0; i < 4; i++)
-#ifdef WITH_PRINTEX_LIB
-            (i < 3) ? debugSerial << (ipAddress[i]) << F(".") : debugSerial << (ipAddress[i])<<F(", ");
-#else
-            (i < 3) ? debugSerial << _DEC(ipAddress[i]) << F(".") : debugSerial << _DEC(ipAddress[i]) << F(", ");
-#endif
-}
 
 void printMACAddress() {
     debugSerial<<F("Configured MAC:");
@@ -230,10 +257,6 @@ void printMACAddress() {
 #endif
 }
 
-void restoreState() {
-    // Once connected, publish an announcement... // Once connected, publish an announcement...
-    //mqttClient.publish("/myhome/out/RestoreState", "ON");
-};
 
 lan_status lanLoop() {
 
@@ -263,7 +286,8 @@ lan_status lanLoop() {
                 char buf[MQTT_TOPIC_LENGTH];
 
                 //Unsubscribe from status topics..
-                strncpy_P(buf, outprefix, sizeof(buf));
+                //strncpy_P(buf, outprefix, sizeof(buf));
+                setTopic(buf,sizeof(buf),T_OUT);
                 strncat(buf, "#", sizeof(buf));
                 mqttClient.unsubscribe(buf);
 
@@ -353,24 +377,28 @@ void onMQTTConnect(){
   char buf[128] = "";
 
   // High level homie topics publishing
-  strncpy_P(topic, outprefix, sizeof(topic));
+  //strncpy_P(topic, outprefix, sizeof(topic));
+  setTopic(topic,sizeof(topic),T_OUT);
   strncat_P(topic, state_P, sizeof(topic));
   strncpy_P(buf, ready_P, sizeof(buf));
   mqttClient.publish(topic,buf,true);
 
-  strncpy_P(topic, outprefix, sizeof(topic));
+  //strncpy_P(topic, outprefix, sizeof(topic));
+  setTopic(topic,sizeof(topic),T_OUT);
   strncat_P(topic, name_P, sizeof(topic));
   strncpy_P(buf, nameval_P, sizeof(buf));
   mqttClient.publish(topic,buf,true);
 
-  strncpy_P(topic, outprefix, sizeof(topic));
+  //strncpy_P(topic, outprefix, sizeof(topic));
+  setTopic(topic,sizeof(topic),T_OUT);
   strncat_P(topic, stats_P, sizeof(topic));
   strncpy_P(buf, statsval_P, sizeof(buf));
   mqttClient.publish(topic,buf,true);
 
   #ifndef NO_HOMIE
 
-  strncpy_P(topic, outprefix, sizeof(topic));
+//  strncpy_P(topic, outprefix, sizeof(topic));
+  setTopic(topic,sizeof(topic),T_OUT);
   strncat_P(topic, homie_P, sizeof(topic));
   strncpy_P(buf, homiever_P, sizeof(buf));
   mqttClient.publish(topic,buf,true);
@@ -411,7 +439,9 @@ void onMQTTConnect(){
                       break;
                   } //switch
 
-                  strncpy_P(topic, outprefix, sizeof(topic));
+                  //strncpy_P(topic, outprefix, sizeof(topic));
+                  setTopic(topic,sizeof(topic),T_OUT);
+
                   strncat(topic,item->name,sizeof(topic));
                   strncat(topic,"/",sizeof(topic));
                   strncat_P(topic,datatype_P,sizeof(topic));
@@ -419,7 +449,9 @@ void onMQTTConnect(){
 
                   if (format[0])
                   {
-                  strncpy_P(topic, outprefix, sizeof(topic));
+                  //strncpy_P(topic, outprefix, sizeof(topic));
+                  setTopic(topic,sizeof(topic),T_OUT);
+
                   strncat(topic,item->name,sizeof(topic));
                   strncat(topic,"/",sizeof(topic));
                   strncat_P(topic,format_P,sizeof(topic));
@@ -427,7 +459,8 @@ void onMQTTConnect(){
                   }
               item = item->next;
           }  //if
-          strncpy_P(topic, outprefix, sizeof(topic));
+          //strncpy_P(topic, outprefix, sizeof(topic));
+          setTopic(topic,sizeof(topic),T_OUT);
           strncat_P(topic, nodes_P, sizeof(topic));
           mqttClient.publish(topic,buf,true);
   }
@@ -441,18 +474,26 @@ void ip_ready_config_loaded_connecting_to_broker() {
     char *user = &empty;
     char passwordBuf[16] = "";
     char *password = passwordBuf;
+    int syslogPort = 514;
+    char syslogDeviceHostname[16];
+    if (mqttArr && (aJson.getArraySize(mqttArr))) deviceName = aJson.getArrayItem(mqttArr, 0)->valuestring;
+
 #ifdef SYSLOG_ENABLE
-    debugSerial<<"debugSerial:";
+    //debugSerial<<"debugSerial:";
     delay(100);
-    if (udpSyslogArr && aJson.getArraySize(udpSyslogArr)) {
+    if (udpSyslogArr && (n = aJson.getArraySize(udpSyslogArr))) {
       char *syslogServer = aJson.getArrayItem(udpSyslogArr, 0)->valuestring;
-      int syslogPort = aJson.getArrayItem(udpSyslogArr, 1)->valueint;
+      if (n>1) syslogPort = aJson.getArrayItem(udpSyslogArr, 1)->valueint;
+
+       inet_ntoa_r(Ethernet.localIP(),syslogDeviceHostname,sizeof(syslogDeviceHostname));
+/*
       char *syslogDeviceHostname = aJson.getArrayItem(udpSyslogArr, 2)->valuestring;
       char *syslogAppname = aJson.getArrayItem(udpSyslogArr, 3)->valuestring;
-      debugSerial<<F("Syslog params:")<<syslogServer<<syslogPort<<syslogDeviceHostname<<syslogAppname;
+*/
+      debugSerial<<F("Syslog params:")<<syslogServer<<":"<<syslogPort<<":"<<syslogDeviceHostname<<":"<<deviceName<<endl;
       udpSyslog.server(syslogServer, syslogPort);
       udpSyslog.deviceHostname(syslogDeviceHostname);
-      udpSyslog.appName(syslogAppname);
+      if (deviceName) udpSyslog.appName(deviceName);
       udpSyslog.defaultPriority(LOG_KERN);
       udpSyslog.log(LOG_INFO, F("UDP Syslog initialized!"));
         debugSerial<<F("UDP Syslog initialized!\n");
@@ -460,7 +501,7 @@ void ip_ready_config_loaded_connecting_to_broker() {
 #endif
 
     if (!mqttClient.connected() && mqttArr && ((n = aJson.getArraySize(mqttArr)) > 1)) {
-        char *client_id = aJson.getArrayItem(mqttArr, 0)->valuestring;
+    //    char *client_id = aJson.getArrayItem(mqttArr, 0)->valuestring;
         char *servername = aJson.getArrayItem(mqttArr, 1)->valuestring;
         if (n >= 3) port = aJson.getArrayItem(mqttArr, 2)->valueint;
         if (n >= 4) user = aJson.getArrayItem(mqttArr, 3)->valuestring;
@@ -477,26 +518,35 @@ void ip_ready_config_loaded_connecting_to_broker() {
 
         strncpy_P(willMessage,disconnected_P,sizeof(willMessage));
 
-        strncpy_P(willTopic, outprefix, sizeof(willTopic));
+      //  strncpy_P(willTopic, outprefix, sizeof(willTopic));
+        setTopic(willTopic,sizeof(willTopic),T_OUT);
+
         strncat_P(willTopic, state_P, sizeof(willTopic));
 
 
         debugSerial<<F("\nAttempting MQTT connection to ")<<servername<<F(":")<<port<<F(" user:")<<user<<F(" ...");
         wdt_dis();  //potential unsafe for ethernetIdle(), but needed to avoid cyclic reboot if mosquitto out of order
-        if (mqttClient.connect(client_id, user, password,willTopic,MQTTQOS1,true,willMessage)) {
+        if (mqttClient.connect(deviceName, user, password,willTopic,MQTTQOS1,true,willMessage)) {
             mqttErrorRate = 0;
-            debugSerial<<F("connected as ")<<client_id <<endl;
+            debugSerial<<F("connected as ")<<deviceName <<endl;
             wdt_en();
             configOk = true;
             // ... Temporary subscribe to status topic
             char buf[MQTT_TOPIC_LENGTH];
 
-            strncpy_P(buf, outprefix, sizeof(buf));
+  //          strncpy_P(buf, outprefix, sizeof(buf));
+            setTopic(buf,sizeof(buf),T_OUT);
             strncat(buf, "#", sizeof(buf));
             mqttClient.subscribe(buf);
 
             //Subscribing for command topics
-            strncpy_P(buf, inprefix, sizeof(buf));
+            //strncpy_P(buf, inprefix, sizeof(buf));
+            setTopic(buf,sizeof(buf),T_BCST);
+            strncat(buf, "#", sizeof(buf));
+            Serial.println(buf);
+            mqttClient.subscribe(buf);
+
+            setTopic(buf,sizeof(buf),T_DEV);
             strncat(buf, "#", sizeof(buf));
             Serial.println(buf);
             mqttClient.subscribe(buf);
@@ -695,7 +745,8 @@ void Changed(int i, DeviceAddress addr, float currentTemp) {
         }
 #endif
 
-            strcpy_P(addrstr, outprefix);
+            //strcpy_P(addrstr, outprefix);
+            setTopic(addrstr,sizeof(addrstr),T_OUT);
             strncat(addrstr, owEmitString, sizeof(addrstr));
             mqttClient.publish(addrstr, valstr);
         }
@@ -792,6 +843,7 @@ void applyConfig() {
     }
 #endif
     items = aJson.getObjectItem(root, "items");
+    topics = aJson.getObjectItem(root, "topics");
 
 // Digital output related Items initialization
     pollingItem=NULL;
@@ -852,7 +904,7 @@ void printConfigSummary() {
 
 void cmdFunctionLoad(int arg_cnt, char **args) {
     loadConfigFromEEPROM();
-    restoreState();
+  //  restoreState();
 }
 
 int loadConfigFromEEPROM()
@@ -882,7 +934,7 @@ int loadConfigFromEEPROM()
 
 void cmdFunctionReq(int arg_cnt, char **args) {
     mqttConfigRequest(arg_cnt, args);
-    restoreState();
+  //  restoreState();
 }
 
 
@@ -1297,10 +1349,16 @@ void printFirmwareVersionAndBuildOptions() {
 #else
     debugSerial<<F("\n(+)OWIRE");
 #endif
-#ifndef DHT_COUNTER_DISABLE
+#ifndef DHT_DISABLE
-    debugSerial<<F("\n(+)DHT COUNTER");
+    debugSerial<<F("\n(+)DHT");
 #else
-    debugSerial<<F("\n(-)DHT COUNTER");
+    debugSerial<<F("\n(-)DHT");
+#endif
+
+#ifndef COUNTER_DISABLE
+    debugSerial<<F("\n(+)COUNTER");
+#else
+    debugSerial<<F("\n(-)COUNTER");
 #endif
 
 #ifdef SD_CARD_INSERTED
@@ -1323,7 +1381,7 @@ debugSerial<<endl;
 
 //    WDT_Disable( WDT ) ;
 
-    Serial.println("Reading 128 bits unique identifier \n\r" ) ;
+    Serial.println(F("Reading 128 bits unique identifier") ) ;
     ReadUniqueID( UniqueID ) ;
 
     Serial.print ("ID: ") ;
@@ -1333,6 +1391,9 @@ debugSerial<<endl;
 
 
 }
+
+
+
 void publishStat(){
   long fr = freeRam();
   char topic[64];
@@ -1340,15 +1401,14 @@ void publishStat(){
   long ut = millis()/1000;
 
 //    debugSerial<<F("\nfree RAM: ")<<fr;
-
+    setTopic(topic,sizeof(topic),T_DEV);
-    strncpy_P(topic, outprefix, sizeof(topic));
     strncat_P(topic, stats_P, sizeof(topic));
     strncat(topic, "/", sizeof(topic));
     strncat_P(topic, freeheap_P, sizeof(topic));
 
     mqttClient.publish(topic,itoa(fr,intbuf,10),true);
 
-    strncpy_P(topic, outprefix, sizeof(topic));
+    setTopic(topic,sizeof(topic),T_DEV);
     strncat_P(topic, stats_P, sizeof(topic));
     strncat(topic, "/", sizeof(topic));
     strncat_P(topic, uptime_P, sizeof(topic));
@@ -1427,9 +1487,9 @@ void loop_main() {
         #ifndef MODBUS_DISABLE
         if (lanStatus != RETAINING_COLLECTING) pollingLoop();
         #endif
-#ifdef _owire
+//#ifdef _owire
         thermoLoop();
-#endif
+//#endif
     }
 
 

lighthub/main.h

@@ -161,17 +161,13 @@ enum lan_status {
     DO_NOTHING = -14
 };
 
+
 //void watchdogSetup(void);
 
 void mqttCallback(char *topic, byte *payload, unsigned int length);
 
-
-void printIPAddress(IPAddress ipAddress);
-
 void printMACAddress();
 
-void restoreState();
-
 lan_status lanLoop();
 
 #ifndef OWIRE_DISABLE

lighthub/options.h

@@ -65,6 +65,10 @@
 #define CONFIG_SERVER QUOTE(MY_CONFIG_SERVER)
 #endif
 
+#ifndef HOMETOPIC
+#define HOMETOPIC  "/myhome"
+#endif
+/*
 #ifndef OUTTOPIC
 #define OUTTOPIC "/myhome/s_out/"
 #endif
@@ -76,6 +80,19 @@
 #ifndef INTOPIC
 #define INTOPIC  "/myhome/in/"
 #endif
+*/
+
+#ifndef OUTTOPIC
+#define OUTTOPIC "s_out"
+#endif
+
+#ifndef CMDTOPIC
+#define CMDTOPIC "command"
+#endif
+
+#ifndef INTOPIC
+#define INTOPIC  "in"
+#endif
 
 #define MQTT_SUBJECT_LENGTH 20
 #define MQTT_TOPIC_LENGTH 20

lighthub/utils.cpp

@@ -32,6 +32,13 @@ extern "C" {
 }
 #endif
 
+const char outTopic[] PROGMEM = OUTTOPIC;
+const char inTopic[] PROGMEM = INTOPIC;
+const char homeTopic[] PROGMEM = HOMETOPIC;
+extern char *deviceName;
+extern aJsonObject *topics;
+
+
 void PrintBytes(uint8_t *addr, uint8_t count, bool newline) {
     for (uint8_t i = 0; i < count; i++) {
         Serial.print(addr[i] >> 4, HEX);
@@ -326,6 +333,84 @@ int inet_aton(const char* aIPAddrString, IPAddress& aResult)
     }
 }
 
+/**
+ * Same as ipaddr_ntoa, but reentrant since a user-supplied buffer is used.
+ *
+ * @param addr ip address in network order to convert
+ * @param buf target buffer where the string is stored
+ * @param buflen length of buf
+ * @return either pointer to buf which now holds the ASCII
+ *         representation of addr or NULL if buf was too small
+ */
+char *inet_ntoa_r(IPAddress addr, char *buf, int buflen)
+{
+  short n;
+  char intbuf[4];
+
+
+buf[0]=0;
+for(n = 0; n < 4; n++) {
+  if (addr[n]>255) addr[n]=-1;
+  itoa(addr[n],intbuf,10);
+  strncat(buf,intbuf,buflen);
+  if (n<3) strncat(buf,".",buflen);
+}
+  return buf;
+}
+
+
+void printIPAddress(IPAddress ipAddress) {
+    for (byte i = 0; i < 4; i++)
+#ifdef WITH_PRINTEX_LIB
+            (i < 3) ? debugSerial << (ipAddress[i]) << F(".") : debugSerial << (ipAddress[i])<<F(", ");
+#else
+            (i < 3) ? debugSerial << _DEC(ipAddress[i]) << F(".") : debugSerial << _DEC(ipAddress[i]) << F(", ");
+#endif
+}
+
+
+char* setTopic(char* buf, int8_t buflen, topicType tt, char* suffix=NULL)
+{
+  aJsonObject *_root = NULL;
+  aJsonObject *_l2 = NULL;
+
+if (topics && topics->type == aJson_Object)
+  {
+    _root = aJson.getObjectItem(topics, "root");
+    switch (tt) {
+      case T_OUT:
+      _l2 = aJson.getObjectItem(topics, "out");
+      break;
+      case T_BCST:
+      _l2 = aJson.getObjectItem(topics, "bcst");
+      break;
+    }
+
+
+    }
+if  (_root) strncpy(buf,_root->valuestring,buflen);
+  else strncpy_P(buf,homeTopic,buflen);
+strncat(buf,"/",buflen);
+
+if (_l2) strncat(buf,_l2->valuestring,buflen);
+  else
+  switch (tt) {
+    case T_DEV:
+    strncat(buf,deviceName,buflen);
+    break;
+    case T_OUT:
+    strncat_P(buf,outTopic,buflen);
+    break;
+    case T_BCST:
+    strncat_P(buf,inTopic,buflen); /////
+    break;
+  }
+strncat(buf,"/",buflen);
+if (suffix) strncat(buf,suffix,buflen);
+
+return buf;
+
+}
 
 #pragma message(VAR_NAME_VALUE(debugSerial))
 #pragma message(VAR_NAME_VALUE(SERIAL_BAUD))

lighthub/utils.h

@@ -25,6 +25,7 @@ e-mail    anklimov@gmail.com
 
 #include <Arduino.h>
 #include <IPAddress.h>
+#include "aJSON.h"
 #include "options.h"
 #ifdef WITH_PRINTEX_LIB
 #include "PrintEx.h"
@@ -33,6 +34,12 @@ using namespace ios;
 #include "Streaming.h"
 #endif
 
+enum topicType {
+    T_DEV = 1,
+    T_BCST= 2,
+    T_OUT = 3
+  };
+
 void PrintBytes(uint8_t* addr, uint8_t count, bool newline);
 void SetBytes(uint8_t* addr, uint8_t count, char * out);
 void SetAddr(char * out,  uint8_t* addr);
@@ -44,3 +51,6 @@ int log(const char *str, ...);
 void printFloatValueToStr(float value, char *valstr);
 void ReadUniqueID( unsigned int * pdwUniqueID );
 int inet_aton(const char* aIPAddrString, IPAddress& aResult);
+char *inet_ntoa_r(IPAddress addr, char *buf, int buflen);
+void printIPAddress(IPAddress ipAddress);
+char* setTopic(char* buf, int8_t buflen, topicType tt, char* suffix = NULL);

platformio.ini

@@ -9,7 +9,7 @@
 ; http://docs.platformio.org/page/projectconf.html
 [platformio]
 src_dir = lighthub
-env_default = megaatmega2560
+env_default = megaatmega2560-net
 ;monitor_speed = 115200
 ;    megaatmega2560
 ;    megaatmega2560-net
@@ -254,7 +254,6 @@ lib_deps =
     https://github.com/arcao/Syslog.git
     Streaming
 
-
 [env:due-5500]
 platform = atmelsam
 framework = arduino