Improvements of code

* Bugfixes
 * added pointer for MQTT again
 * Removed some String datatype and replaced with char array
 * better responsiveness in ui for sliders

Arduino/McLighting/McLighting.ino

@@ -38,7 +38,7 @@
 // ***************************************************************************
     #include <PubSubClient.h>
     WiFiClient espClient;
-    PubSubClient mqtt_client(espClient);
+    PubSubClient * mqtt_client;
   #endif
   
   #if ENABLE_MQTT == 1
@@ -47,7 +47,7 @@
 // ***************************************************************************
     #include <AsyncMqttClient.h>     //https://github.com/marvinroger/async-mqtt-client
                                      //https://github.com/me-no-dev/ESPAsyncTCP
-    AsyncMqttClient mqtt_client;
+    AsyncMqttClient * mqtt_client;
     WiFiEventHandler wifiConnectHandler;
     WiFiEventHandler wifiDisconnectHandler;
   #endif
@@ -65,7 +65,7 @@
 // ***************************************************************************
   #include <ESPAsyncUDP.h>         //https://github.com/me-no-dev/ESPAsyncUDP
   #include <ESPAsyncE131.h>        //https://github.com/forkineye/ESPAsyncE131
-  ESPAsyncE131* e131 = NULL; //(END_UNIVERSE - START_UNIVERSE + 1);
+  ESPAsyncE131 * e131 = NULL;
 #endif
 
 #if defined(ENABLE_REMOTE)
@@ -107,34 +107,35 @@ WebSocketsServer webSocket = WebSocketsServer(81);
 // Load and instanciate WS2812FX library
 // ***************************************************************************
 #include <WS2812FX.h>              // https://github.com/kitesurfer1404/WS2812FX
-WS2812FX* strip = NULL;
+WS2812FX * strip = NULL;
 
 #if defined(USE_WS2812FX_DMA)
   #include <NeoPixelBus.h>
 
   #if USE_WS2812FX_DMA == 0 // Uses GPIO3/RXD0/RX, more info: https://github.com/Makuna/NeoPixelBus/wiki/ESP8266-NeoMethods
     #if !defined(LED_TYPE_WS2811) 
-      NeoEsp8266Dma800KbpsMethod* dma = NULL ; //800 KHz bitstream (most NeoPixel products w/WS2812 LEDs)
+      NeoEsp8266Dma800KbpsMethod * dma = NULL ; //800 KHz bitstream (most NeoPixel products w/WS2812 LEDs)
     #else
-      NeoEsp8266Dma400KbpsMethod* dma = NULL;  //400 KHz (classic 'v1' (not v2) FLORA pixels, WS2811 drivers)
+      NeoEsp8266Dma400KbpsMethod * dma = NULL;  //400 KHz (classic 'v1' (not v2) FLORA pixels, WS2811 drivers)
     #endif
   #endif
   #if USE_WS2812FX_DMA == 1 // Uses UART1: GPIO1/TXD0/TX, more info: https://github.com/Makuna/NeoPixelBus/wiki/ESP8266-NeoMethods
     #if !defined(LED_TYPE_WS2811) 
-      NeoEsp8266Uart0800KbpsMethod* dma = NULL; //800 KHz bitstream (most NeoPixel products w/WS2812 LEDs)
+      NeoEsp8266Uart0800KbpsMethod * dma = NULL; //800 KHz bitstream (most NeoPixel products w/WS2812 LEDs)
     #else
-      NeoEsp8266Uart0400KbpsMethod* dma = NULL; //400 KHz (classic 'v1' (not v2) FLORA pixels, WS2811 drivers)
+      NeoEsp8266Uart0400KbpsMethod * dma = NULL; //400 KHz (classic 'v1' (not v2) FLORA pixels, WS2811 drivers)
     #endif
   #endif
   #if USE_WS2812FX_DMA == 2 // Uses UART2: GPIO2/TXD1/D4, more info: https://github.com/Makuna/NeoPixelBus/wiki/ESP8266-NeoMethods
     #if !defined(LED_TYPE_WS2811) 
-      NeoEsp8266Uart1800KbpsMethod* dma = NULL; //800 KHz bitstream (most NeoPixel products w/WS2812 LEDs)
+      NeoEsp8266Uart1800KbpsMethod * dma = NULL; //800 KHz bitstream (most NeoPixel products w/WS2812 LEDs)
     #else
-      NeoEsp8266Uart1400KbpsMethod* dma = NULL; //400 KHz (classic 'v1' (not v2) FLORA pixels, WS2811 drivers)
+      NeoEsp8266Uart1400KbpsMethod * dma = NULL; //400 KHz (classic 'v1' (not v2) FLORA pixels, WS2811 drivers)
     #endif
   #endif
   
   void initDMA(uint16_t stripSize = NUMLEDS){
+    if (dma != NULL) { delete(dma); }
     uint8_t ledcolors = 3;
     if (strstr(WS2812FXStripSettings.RGBOrder, "W") != NULL) {
       ledcolors = 4;
@@ -196,7 +197,6 @@ void tick() {
 #if defined(ENABLE_REMOTE)
   IRrecv irrecv(ENABLE_REMOTE);
   decode_results results;
-  
 #endif
 
 Ticker settings_save_state;
@@ -269,20 +269,26 @@ void saveConfigCallback () {
 // function to Initialize the strip
 void initStrip(uint16_t stripSize = WS2812FXStripSettings.stripSize, char RGBOrder[5] = WS2812FXStripSettings.RGBOrder, uint8_t pin = WS2812FXStripSettings.pin, uint8_t fxoptions = WS2812FXStripSettings.fxoptions ){
   DBG_OUTPUT_PORT.println("Initializing strip!");
+/*#if defined(USE_WS2812FX_DMA)
   if (dma != NULL) {
      delete(dma);
   }
-  if (strip != NULL) { //second one created second to delete
+#endif*/
+  if (strip != NULL) {
     delete(strip);
     WS2812FXStripSettings.stripSize = stripSize;
     strcpy(WS2812FXStripSettings.RGBOrder, RGBOrder);
     WS2812FXStripSettings.pin = pin;
     WS2812FXStripSettings.fxoptions = fxoptions;
   }
+#if defined(ENABLE_E131)
+
+#endif  
   if (ledstates != NULL) {
     delete(ledstates);
-  }
+  } 
   ledstates = new uint8_t [WS2812FXStripSettings.stripSize];
+
 #if !defined(LED_TYPE_WS2811)
   strip = new WS2812FX(stripSize, pin, checkRGBOrder(RGBOrder) + NEO_KHZ800);
 #else
@@ -314,17 +320,24 @@ void initStrip(uint16_t stripSize = WS2812FXStripSettings.stripSize, char RGBOrd
   gReverseDirection = (WS2812FXStripSettings.fxoptions & 128);
 #endif
 #if defined(ENABLE_E131)
-/*    
+  if (e131 != NULL) { delete(e131); }
-    uint8_t universe_leds = 170.0;  // a universe has only 512 (0..511) channels: 3*170 or 4*128 <= 512
+  e131 = new ESPAsyncE131(END_UNIVERSE - START_UNIVERSE + 1);
-    if (strstr(WS2812FXStripSettings.RGBOrder, "W") != NULL) {
+  float universe_leds = 170.0;  // a universe has only 512 (0..511) channels: 3*170 or 4*128 <= 512
-      universe_leds = 128.0;
+  if (strstr(WS2812FXStripSettings.RGBOrder, "W") != NULL) {
-    }
+    //universe_leds = 128.0;
-*/
+  }
-    float float_enduni = stripSize/170.0; 
+  float float_enduni = stripSize/universe_leds; 
-    uint8_t END_UNIVERSE = stripSize/170.0;
+  uint8_t END_UNIVERSE = stripSize/universe_leds;
-    if (float_enduni > END_UNIVERSE) {
+  if (float_enduni > END_UNIVERSE) {
-      END_UNIVERSE = END_UNIVERSE +1;
+    END_UNIVERSE = END_UNIVERSE +1;
-    }
+  }
+    
+  // if (e131.begin(E131_UNICAST))                              // Listen via Unicast
+  if (e131->begin(E131_MULTICAST, START_UNIVERSE, END_UNIVERSE)) {// Listen via Multicast
+      DBG_OUTPUT_PORT.println(F("Listening for data..."));
+  } else {
+      DBG_OUTPUT_PORT.println(F("*** e131.begin failed ***"));
+  }
 #endif
 }
 
@@ -334,12 +347,12 @@ void initMqtt() {
   // ***************************************************************************
   // Configure MQTT
   // ***************************************************************************
-  /*#if ENABLE_MQTT == 0
+  #if ENABLE_MQTT == 0
     mqtt_client = new PubSubClient(espClient);
   #endif
   #if ENABLE_MQTT == 1
     mqtt_client = new AsyncMqttClient();
-  #endif*/
+  #endif
 
   #if defined(ENABLE_MQTT_HOSTNAME_CHIPID)
     snprintf(mqtt_clientid, sizeof(mqtt_clientid), "%s-%08X", HOSTNAME, ESP.getChipId());
@@ -357,18 +370,18 @@ void initMqtt() {
   if ((strlen(mqtt_host) != 0) && (mqtt_port != 0)) {
     #if ENABLE_MQTT == 0
       DBG_OUTPUT_PORT.printf("MQTT active: %s:%d\r\n", mqtt_host, mqtt_port);
-      mqtt_client.setServer(mqtt_host, mqtt_port);
+      mqtt_client->setServer(mqtt_host, mqtt_port);
-      mqtt_client.setCallback(mqtt_callback);
+      mqtt_client->setCallback(mqtt_callback);
     #endif
     #if ENABLE_MQTT == 1   
       DBG_OUTPUT_PORT.printf("AMQTT active: %s:%d\r\n", mqtt_host, mqtt_port);
-      mqtt_client.onConnect(onMqttConnect);
+      mqtt_client->onConnect(onMqttConnect);
-      mqtt_client.onDisconnect(onMqttDisconnect);
+      mqtt_client->onDisconnect(onMqttDisconnect);
-      mqtt_client.onMessage(onMqttMessage);
+      mqtt_client->onMessage(onMqttMessage);
-      if ((strlen(mqtt_user) != 0) || (strlen(mqtt_pass) != 0)) mqtt_client.setCredentials(mqtt_user, mqtt_pass);
+      if ((strlen(mqtt_user) != 0) || (strlen(mqtt_pass) != 0)) mqtt_client->setCredentials(mqtt_user, mqtt_pass);
-      mqtt_client.setClientId(mqtt_clientid);
+      mqtt_client->setClientId(mqtt_clientid);
-      mqtt_client.setWill(mqtt_will_topic, 2, true, mqtt_will_payload, 0);
+      mqtt_client->setWill(mqtt_will_topic, 2, true, mqtt_will_payload, 0);
-      mqtt_client.setServer(mqtt_host, mqtt_port);
+      mqtt_client->setServer(mqtt_host, mqtt_port);
       connectToMqtt();
     #endif
   }
@@ -449,21 +462,21 @@ void setup() {
   #if defined(ENABLE_MQTT)
     char tmp_mqtt_port[6]; //needed tempararily for WiFiManager Settings
     WiFiManagerParameter custom_mqtt_host("host", "MQTT hostname", mqtt_host, 64, " maxlength=64");
-    snprintf(tmp_mqtt_port, sizeof(tmp_mqtt_port), "%d", mqtt_port);
+    sprintf(tmp_mqtt_port, "%d", mqtt_port);
     WiFiManagerParameter custom_mqtt_port("port", "MQTT port", tmp_mqtt_port, 5, " maxlength=5 type=\"number\"");
     WiFiManagerParameter custom_mqtt_user("user", "MQTT user", mqtt_user, 32, " maxlength=32");
     WiFiManagerParameter custom_mqtt_pass("pass", "MQTT pass", mqtt_pass, 32, " maxlength=32 type=\"password\"");
   #endif
-  snprintf(tmp_strip_size, sizeof(tmp_strip_size), "%d", WS2812FXStripSettings.stripSize);
+  sprintf(tmp_strip_size, "%d", WS2812FXStripSettings.stripSize);
   WiFiManagerParameter custom_strip_size("strip_size", "Number of LEDs", tmp_strip_size, 4, " maxlength=4 type=\"number\"");
   #if !defined(USE_WS2812FX_DMA)
     char tmp_led_pin[3];
-    snprintf(tmp_led_pin, sizeof(tmp_led_pin), "%d", WS2812FXStripSettings.pin);
+    sprintf(tmp_led_pin, "%d", WS2812FXStripSettings.pin);
     WiFiManagerParameter custom_led_pin("led_pin", "LED GPIO", tmp_led_pin, 2, " maxlength=2 type=\"number\"");
   #endif
-  snprintf(tmp_rgbOrder, sizeof(tmp_rgbOrder), "%s", WS2812FXStripSettings.RGBOrder);
+  sprintf(tmp_rgbOrder, "%s", WS2812FXStripSettings.RGBOrder);
   WiFiManagerParameter custom_rgbOrder("rgbOrder", "RGBOrder", tmp_rgbOrder, 4, " maxlength=4");
-  snprintf(tmp_fxoptions, sizeof(tmp_fxoptions), "%d", WS2812FXStripSettings.fxoptions);
+  sprintf(tmp_fxoptions, "%d", WS2812FXStripSettings.fxoptions);
   WiFiManagerParameter custom_fxoptions("fxoptions", "fxOptions", tmp_fxoptions, 3, " maxlength=3");
 #endif
 
@@ -548,6 +561,7 @@ void setup() {
         #else
           snprintf(last_conf, sizeof(last_conf), "CNF|%64s|%64s|%5d|%32s|%32s|%4d|%2d|%4s|%3d", HOSTNAME, "", "", "", "", WS2812FXStripSettings.stripSize, WS2812FXStripSettings.pin, WS2812FXStripSettings.RGBOrder, WS2812FXStripSettings.fxoptions);
         #endif
+        last_conf[sizeof(last_conf)]=0;
         writeEEPROM(0, 222, last_conf);
         EEPROM.commit();
       }
@@ -612,8 +626,6 @@ void setup() {
   initMqtt();
 #endif
 
-  initStrip();
-
 #if ENABLE_MQTT == 1
   wifiConnectHandler = WiFi.onStationModeGotIP(onWifiConnect);
   wifiDisconnectHandler = WiFi.onStationModeDisconnected(onWifiDisconnect);
@@ -653,17 +665,6 @@ void setup() {
     MDNS.addService("http", "tcp", 80);
   }
 
-  #if defined(ENABLE_E131)
-  // Choose one to begin listening for E1.31 data
-  e131 = new ESPAsyncE131(END_UNIVERSE - START_UNIVERSE + 1);
-  // if (e131.begin(E131_UNICAST))                              // Listen via Unicast
-  if (e131->begin(E131_MULTICAST, START_UNIVERSE, END_UNIVERSE)) {// Listen via Multicast
-      DBG_OUTPUT_PORT.println(F("Listening for data..."));
-  } else {
-      DBG_OUTPUT_PORT.println(F("*** e131.begin failed ***"));
-  }
-  #endif
-
   prevmode = mode;
   
   #if defined(ENABLE_BUTTON_GY33)
@@ -676,6 +677,8 @@ void setup() {
     snprintf(last_state, sizeof(last_state), "STA|%2d|%3d|%3d|%3d|%3d|%3d|%3d|%3d|%3d|%3d|%3d|%3d|%3d|%3d|%3d|%3d", mode, ws2812fx_mode, ws2812fx_speed, brightness, main_color.red, main_color.green, main_color.blue, main_color.white, back_color.red, back_color.green, back_color.blue, back_color.white, xtra_color.red, xtra_color.green, xtra_color.blue,xtra_color.white);
   #endif
   DBG_OUTPUT_PORT.println("finished Main Setup!");
+
+  initStrip();
 }
 
 // ***************************************************************************
@@ -712,14 +715,14 @@ void loop() {
         WiFi.begin();
       } else {
         if ((strlen(mqtt_host) != 0) && (mqtt_port != 0) && (mqtt_reconnect_retries < MQTT_MAX_RECONNECT_TRIES)) {
-          if (!mqtt_client.connected()) {
+          if (!mqtt_client->connected()) {
             #if defined(ENABLE_HOMEASSISTANT)
              ha_send_data.detach();
             #endif
             DBG_OUTPUT_PORT.println("MQTT disconnected, reconnecting!");
             mqtt_reconnect();
           } else {
-            mqtt_client.loop();
+            mqtt_client->loop();
           }
         }
       }
@@ -863,10 +866,10 @@ void loop() {
     }
     #if defined(ENABLE_MQTT)
       #if ENABLE_MQTT == 0
-        mqtt_client.publish(mqtt_outtopic, mqtt_buf);
+        mqtt_client->publish(mqtt_outtopic, mqtt_buf);
       #endif
       #if ENABLE_MQTT == 1
-        mqtt_client.publish(mqtt_outtopic, qospub, false, mqtt_buf);
+        mqtt_client->publish(mqtt_outtopic, qospub, false, mqtt_buf);
       #endif
       #if defined(ENABLE_HOMEASSISTANT)
         if(!ha_send_data.active())  ha_send_data.once(3, tickerSendState);

Arduino/McLighting/definitions.h

@@ -1,9 +1,12 @@
 #define USE_WS2812FX_DMA 0      // 0 = Used PIN is ignored & set to RX/GPIO3; 1 = Used PIN is ignored & set to D4/GPIO2; 2 = Uses PIN is ignored & set to TX/GPIO1;  Uses WS2812FX, see: https://github.com/kitesurfer1404/WS2812FX
-
+#if defined(USE_WS2812FX_DMA)
+  #define MAXLEDS 384           // due to memory limit of esp8266 at the moment only 384 leds are supported in DMA Mode. More can crash if mqtt is used.
+#else
+  #define MAXLEDS 4096
+#endif 
 // Neopixel
 #define LED_PIN 3          // PIN (15 / D8) where neopixel / WS2811 strip is attached; is configurable, if USE_WS2812FX_DMA is not defined. Just for the start
-#define NUMLEDS 50         // Number of leds in the; is configurable just for the start
+#define NUMLEDS 50         // Number of leds in the; is configurable just for the start 
-#define MAXLEDS 700        // due to memory limit of esp8266 at the moment only 700 leds are supported.
 #define RGBORDER "GRBW"    // RGBOrder; is configurable just for the start
 #define FX_OPTIONS 56      // ws2812fx Options 56 = SIZE_SMALL + FADE_MEDIUM + GAMMA  is configurable just for the start; for WS2812FX setSegment OPTIONS, see: https://github.com/kitesurfer1404/WS2812FX/blob/master/extras/WS2812FX%20Users%20Guide.md
 //#define LED_TYPE_WS2811    // Uncomment, if LED type uses 400 KHz (classic 'v1' (not v2) FLORA pixels, WS2811 drivers)
@@ -17,7 +20,7 @@ char HOSTNAME[65] = "McLightingRGBW"; // Friedly hostname  is configurable just
 #define ENABLE_HOMEASSISTANT          // If defined, enable Homeassistant integration, ENABLE_MQTT must be active
 #define MQTT_HOME_ASSISTANT_SUPPORT   // If defined, use AMQTT and select Tools -> IwIP Variant -> Higher Bandwidth
 #define ENABLE_BUTTON 14              // If defined, enable button handling code, see: https://github.com/toblum/McLighting/wiki/Button-control, the value defines the input pin (14 / D5) for switching the LED strip on / off, connect this PIN to ground to trigger button.
-//#define ENABLE_BUTTON_GY33 12         // If defined, enable button handling code for GY-33 color sensor to scan color. The value defines the input pin (12 / D6) for read color data with RGB sensor, connect this PIN to ground to trigger button.
+#define ENABLE_BUTTON_GY33 12         // If defined, enable button handling code for GY-33 color sensor to scan color. The value defines the input pin (12 / D6) for read color data with RGB sensor, connect this PIN to ground to trigger button.
 #define ENABLE_REMOTE 13              // If defined, enable Remote Control via TSOP31238. The value defines the input pin (13 / D7) for TSOP31238 Out 
 
 #define ENABLE_STATE_SAVE 1           // If defined, load saved state on reboot and save state. If set to 0 from EEPROM, if set to 1 from SPIFFS
@@ -26,7 +29,7 @@ char HOSTNAME[65] = "McLightingRGBW"; // Friedly hostname  is configurable just
 #define CUSTOM_WS2812FX_ANIMATIONS    //uncomment and put animations in "custom_ws2812fx_animations.h" 
 #define ENABLE_E131                   // E1.31 implementation You have to uncomment #define USE_WS2812FX_DMA and set it to 0
 #define ENABLE_TV                     // Enable TV Animation 
-#define USE_HTML_MIN_GZ               //uncomment for using index.htm & edit.htm from PROGMEM instead of SPIFFs
+bool USE_HTML_MIN_GZ = true;          //uncomment for using index.htm & edit.htm from PROGMEM instead of SPIFFs -> next version i will make it customizable
 
 #if defined(ENABLE_E131)
   #define MULTICAST false

Arduino/McLighting/request_handlers.h

@@ -4,7 +4,7 @@
 
 // Prototypes
 void   handleAutoStart();
-String listStatusJSON();
+char * listStatusJSON();
 bool   writeConfigFS(bool);
 
 #if defined(ENABLE_E131)
@@ -535,7 +535,7 @@ void handleSetWS2812FXMode(uint8_t * mypayload) {
   }    
 }
 
-String listStatusJSON() {
+char * listStatusJSON() {
   //uint8_t tmp_mode = (mode == SET_MODE) ? (uint8_t) ws2812fx_mode : strip->getMode(); 
   const size_t bufferSize = JSON_ARRAY_SIZE(12) + JSON_OBJECT_SIZE(6) + 500;
   DynamicJsonDocument jsonBuffer(bufferSize);
@@ -560,13 +560,14 @@ String listStatusJSON() {
   color.add(xtra_color.red);
   color.add(xtra_color.green);
   color.add(xtra_color.blue);
-  String json;
+  uint16_t msg_len = measureJson(root) + 1;
-  serializeJson(root, json);
+  char * buffer = (char *) malloc(msg_len);
+  serializeJson(root, buffer, msg_len);
   jsonBuffer.clear();
-  return json;
+  return buffer;
 }
 
-String listConfigJSON() {
+char * listConfigJSON() {
   //uint8_t tmp_mode = (mode == SET_MODE) ? (uint8_t) ws2812fx_mode : strip->getMode(); 
   #if defined(ENABLE_MQTT)
     const size_t bufferSize = JSON_OBJECT_SIZE(9) + 500;
@@ -586,25 +587,30 @@ String listConfigJSON() {
   root["ws_rgbo"]   = WS2812FXStripSettings.RGBOrder;
   root["ws_pin"]    = WS2812FXStripSettings.pin;
   root["ws_fxopt"]  = WS2812FXStripSettings.fxoptions;
-  String json;
+  uint16_t msg_len = measureJson(root) + 1;
-  serializeJson(root, json);
+  char * buffer = (char *) malloc(msg_len);
+  serializeJson(root, buffer, msg_len);
   jsonBuffer.clear();
-  return json;
+  return buffer;
 }
 
 
 void getStatusJSON() {
+  char * buffer = listStatusJSON();
   server.sendHeader("Access-Control-Allow-Origin", "*");
-  server.send ( 200, "application/json", listStatusJSON() );
+  server.send ( 200, "application/json", buffer);
+  free (buffer);
 }
 
 void getConfigJSON() {
+  char * buffer = listConfigJSON();
   server.sendHeader("Access-Control-Allow-Origin", "*");
-  server.send ( 200, "application/json", listConfigJSON() );
+  server.send ( 200, "application/json", buffer);
+  free (buffer);
 }
 
 
-String listModesJSON() {
+char * listModesJSON() {
   const size_t bufferSize = JSON_ARRAY_SIZE(strip->getModeCount() + 3) + (strip->getModeCount() + 3)*JSON_OBJECT_SIZE(2) + 2000;
   DynamicJsonDocument jsonBuffer(bufferSize);
   JsonArray root = jsonBuffer.to<JsonArray>();
@@ -629,15 +635,18 @@ String listModesJSON() {
     object["mode"] = i;
     object["name"] = strip->getModeName(i);
   }
-  String json;
+  uint16_t msg_len = measureJson(root) + 1;
-  serializeJson(root, json);
+  char * buffer = (char *) malloc(msg_len);
+  serializeJson(root, buffer, msg_len);
   jsonBuffer.clear();
-  return json;
+  return buffer;
 }
 
 void getModesJSON() {
+  char * buffer = listModesJSON();
   server.sendHeader("Access-Control-Allow-Origin", "*");
-  server.send ( 200, "application/json", listModesJSON() );
+  server.send ( 200, "application/json", buffer);
+  free (buffer);
 }
 
 // ***************************************************************************
@@ -810,23 +819,24 @@ void checkpayload(uint8_t * payload, bool mqtt = false, uint8_t num = 0) {
 
   // $ ==> Get status Info.
   if (payload[0] == '$') {
-    String json = listStatusJSON();
+    char * buffer = listStatusJSON();
     if (mqtt == true)  {
       DBG_OUTPUT_PORT.print("MQTT: ");
       #if defined(ENABLE_MQTT)
         #if ENABLE_MQTT == 0
-          mqtt_client.publish(mqtt_outtopic, json.c_str());
+          mqtt_client->publish(mqtt_outtopic, buffer);
         #endif
         #if ENABLE_MQTT == 1
-          mqtt_client.publish(mqtt_outtopic, qospub, false, json.c_str());
+          mqtt_client->publish(mqtt_outtopic, qospub, false, buffer);
         #endif
       #endif
     } else {
       DBG_OUTPUT_PORT.print("WS: ");
       webSocket.sendTXT(num, "OK");
-      webSocket.sendTXT(num, json);
+      webSocket.sendTXT(num, buffer);
     }
-    DBG_OUTPUT_PORT.println("Get status info: " + json);
+    DBG_OUTPUT_PORT.printf("Get status info: %s\r\n", buffer);
+    free (buffer);
   }
 
 
@@ -918,50 +928,52 @@ void checkpayload(uint8_t * payload, bool mqtt = false, uint8_t num = 0) {
         }
       #endif
     #endif
-    String json = listConfigJSON();
+    char * buffer = listConfigJSON();
     if (mqtt == true)  {
       DBG_OUTPUT_PORT.print("MQTT: ");
       #if defined(ENABLE_MQTT)
         #if ENABLE_MQTT == 0
-          mqtt_client.publish(mqtt_outtopic, json.c_str());
+          mqtt_client->publish(mqtt_outtopic, buffer);
         #endif
         #if ENABLE_MQTT == 1
-          mqtt_client.publish(mqtt_outtopic, qospub, false, json.c_str());
+          mqtt_client->publish(mqtt_outtopic, qospub, false, buffer);
         #endif
       #endif
     } else {
       DBG_OUTPUT_PORT.print("WS: ");
       webSocket.sendTXT(num, "OK");
-      webSocket.sendTXT(num, json);
+      webSocket.sendTXT(num, buffer);
     }
     updateStrip = false;
     updateConf  = false;
-    DBG_OUTPUT_PORT.println("Get status info: " + json);
+    DBG_OUTPUT_PORT.printf("Get status info: %s\r\n", buffer);
+    free (buffer);
   }
 
   // ~ ==> Get WS2812 modes.
   if (payload[0] == '~') {
-    String json = listModesJSON();
+    char * buffer  = listModesJSON();
     if (mqtt == true)  {
       DBG_OUTPUT_PORT.print("MQTT: "); 
       #if defined(ENABLE_MQTT)
         #if ENABLE_MQTT == 0
-          uint16_t msg_len = strlen(json.c_str()) + 1;
+          uint16_t msg_len = strlen(buffer) + 1;
-          mqtt_client.beginPublish(mqtt_outtopic, msg_len, true);
+          mqtt_client->beginPublish(mqtt_outtopic, msg_len, true);
-          mqtt_client.write((const uint8_t*)json.c_str(), msg_len);
+          mqtt_client->write((const uint8_t*)buffer, msg_len);
-          mqtt_client.endPublish();       
+          mqtt_client->endPublish();       
         #endif
         #if ENABLE_MQTT == 1
-          mqtt_client.publish(mqtt_outtopic, qospub, false, json.c_str());
+          mqtt_client->publish(mqtt_outtopic, qospub, false, buffer);
         #endif  
       #endif
     } else {
       DBG_OUTPUT_PORT.print("WS: ");
       webSocket.sendTXT(num, "OK");
-      webSocket.sendTXT(num, json);
+      webSocket.sendTXT(num, buffer);
     }
     DBG_OUTPUT_PORT.println("Get WS2812 modes.");
-    DBG_OUTPUT_PORT.println(json);
+    DBG_OUTPUT_PORT.println(buffer);
+    free (buffer);
   }
 
   // / ==> Set WS2812 mode.
@@ -1126,11 +1138,11 @@ void webSocketEvent(uint8_t num, WStype_t type, uint8_t * payload, size_t lenght
       serializeJson(root, buffer, sizeof(buffer));
       jsonBuffer.clear();
       #if ENABLE_MQTT == 0
-      mqtt_client.publish(mqtt_ha_state_out, buffer, true);
+      mqtt_client->publish(mqtt_ha_state_out, buffer, true);
       DBG_OUTPUT_PORT.printf("MQTT: Send [%s]: %s\r\n", mqtt_ha_state_out, buffer);
       #endif
       #if ENABLE_MQTT == 1
-      mqtt_client.publish(mqtt_ha_state_out, 1, true, buffer);
+      mqtt_client->publish(mqtt_ha_state_out, 1, true, buffer);
       DBG_OUTPUT_PORT.printf("MQTT: Send [%s]: %s\r\n", mqtt_ha_state_out, buffer);
       #endif
       new_ha_mqtt_msg = false;
@@ -1283,51 +1295,51 @@ void webSocketEvent(uint8_t num, WStype_t type, uint8_t * payload, size_t lenght
   #if ENABLE_MQTT == 0
   void mqtt_reconnect() {
     // Loop until we're reconnected
-    while (!mqtt_client.connected() && mqtt_reconnect_retries < MQTT_MAX_RECONNECT_TRIES) {
+    while (!mqtt_client->connected() && mqtt_reconnect_retries < MQTT_MAX_RECONNECT_TRIES) {
       mqtt_reconnect_retries++;
       DBG_OUTPUT_PORT.printf("Attempting MQTT connection %d / %d ...\r\n", mqtt_reconnect_retries, MQTT_MAX_RECONNECT_TRIES);
       // Attempt to connect
-      if (mqtt_client.connect(mqtt_clientid, mqtt_user, mqtt_pass, mqtt_will_topic, 2, true, mqtt_will_payload, true)) {
+      if (mqtt_client->connect(mqtt_clientid, mqtt_user, mqtt_pass, mqtt_will_topic, 2, true, mqtt_will_payload, true)) {
         DBG_OUTPUT_PORT.println("MQTT connected!");
         // Once connected, publish an announcement...
         char message[18 + strlen(HOSTNAME) + 1];
         strcpy(message, "McLighting ready: ");
         strcat(message, HOSTNAME);
-        mqtt_client.publish(mqtt_outtopic, message);
+        mqtt_client->publish(mqtt_outtopic, message);
         // ... and resubscribe
-        mqtt_client.subscribe(mqtt_intopic, qossub);
+        mqtt_client->subscribe(mqtt_intopic, qossub);
         if(mqtt_lwt_boot_flag) {
-          mqtt_client.publish(mqtt_will_topic, "ONLINE");
+          mqtt_client->publish(mqtt_will_topic, "ONLINE");
           //mqtt_lwt_boot_flag = false;
         }
         #if defined(ENABLE_HOMEASSISTANT)
           ha_send_data.detach();
-          mqtt_client.subscribe(mqtt_ha_state_in, qossub);
+          mqtt_client->subscribe(mqtt_ha_state_in, qossub);
           ha_send_data.once(5, tickerSendState);
           #if defined(MQTT_HOME_ASSISTANT_SUPPORT)
             const size_t bufferSize = JSON_ARRAY_SIZE(strip->getModeCount()+ 4) + JSON_OBJECT_SIZE(11) + 1500;
             DynamicJsonDocument jsonBuffer(bufferSize);
-            JsonObject json = jsonBuffer.to<JsonObject>();
+            JsonObject root = jsonBuffer.to<JsonObject>();
-            json["name"] = HOSTNAME;
+            root["name"] = HOSTNAME;
             #if defined(MQTT_HOME_ASSISTANT_0_87_SUPPORT)
-            json["schema"] = "json";
+            root["schema"] = "json";
             #else
-            json["platform"] = "mqtt_json";
+            root["platform"] = "mqtt_json";
             #endif
-            json["state_topic"] = mqtt_ha_state_out;
+            root["state_topic"] = mqtt_ha_state_out;
-            json["command_topic"] = mqtt_ha_state_in;
+            root["command_topic"] = mqtt_ha_state_in;
             #if !defined(MQTT_HOME_ASSISTANT_0_87_SUPPORT)
-            json["on_command_type"] = "first";
+            root["on_command_type"] = "first";
             #endif
-            json["brightness"] = "true";
+            root["brightness"] = "true";
-            json["rgb"] = "true";
+            root["rgb"] = "true";
             if (strstr(WS2812FXStripSettings.RGBOrder, "W") != NULL) {
-              json["white_value"]= "true";
+              root["white_value"]= "true";
             }
-            json["optimistic"] = "false";
+            root["optimistic"] = "false";
-            json["color_temp"] = "true";
+            root["color_temp"] = "true";
-            json["effect"] = "true";
+            root["effect"] = "true";
-            JsonArray effect_list = json.createNestedArray("effect_list");
+            JsonArray effect_list = root.createNestedArray("effect_list");
             effect_list.add("OFF");
             effect_list.add("AUTO");
             #if defined(ENABLE_TV)
@@ -1341,17 +1353,17 @@ void webSocketEvent(uint8_t num, WStype_t type, uint8_t * payload, size_t lenght
             }
             // Following will never work for PubSubClient as message size > 1.6kB
             // char buffer[measureJson(json) + 1];
-            // serializeJson(json, buffer, sizeof(buffer));
+            // serializeJson(root, buffer, sizeof(buffer));
-            // mqtt_client.publish(String("homeassistant/light/" + String(HOSTNAME) + "/config").c_str(), buffer, true);
+            // mqtt_client->publish(String("homeassistant/light/" + String(HOSTNAME) + "/config").c_str(), buffer, true);
 
             // Alternate way to publish large messages using PubSubClient
-            uint16_t msg_len = measureJson(json) + 1;
+            uint16_t msg_len = measureJson(root) + 1;
             char buffer[msg_len];
-            serializeJson(json, buffer, sizeof(buffer));
+            serializeJson(root, buffer, sizeof(buffer));
             DBG_OUTPUT_PORT.println(buffer);
-            mqtt_client.beginPublish(String("homeassistant/light/" + String(HOSTNAME) + "/config").c_str(), msg_len-1, true);
+            mqtt_client->beginPublish(mqtt_ha_config, msg_len-1, true);
-            mqtt_client.write((const uint8_t*)buffer, msg_len-1);
+            mqtt_client->write((const uint8_t*)buffer, msg_len-1);
-            mqtt_client.endPublish();
+            mqtt_client->endPublish();
           #endif
         #endif
 
@@ -1359,7 +1371,7 @@ void webSocketEvent(uint8_t num, WStype_t type, uint8_t * payload, size_t lenght
         DBG_OUTPUT_PORT.printf("MQTT topic out: %s\r\n", mqtt_outtopic);
       } else {
         DBG_OUTPUT_PORT.print("failed, rc=");
-        DBG_OUTPUT_PORT.print(mqtt_client.state());
+        DBG_OUTPUT_PORT.print(mqtt_client->state());
         DBG_OUTPUT_PORT.println(" try again in 5 seconds");
         // Wait 5 seconds before retrying
         delay(5000);
@@ -1380,7 +1392,7 @@ void webSocketEvent(uint8_t num, WStype_t type, uint8_t * payload, size_t lenght
 
     void connectToMqtt() {
       DBG_OUTPUT_PORT.println("Connecting to MQTT...");
-      mqtt_client.connect();
+      mqtt_client->connect();
     }
 
     void onWifiConnect(const WiFiEventStationModeGotIP& event) {
@@ -1404,42 +1416,42 @@ void webSocketEvent(uint8_t num, WStype_t type, uint8_t * payload, size_t lenght
       char message[18 + strlen(HOSTNAME) + 1];
       strcpy(message, "McLighting ready: ");
       strcat(message, HOSTNAME);
-      mqtt_client.publish(mqtt_outtopic, qospub, false, message);
+      mqtt_client->publish(mqtt_outtopic, qospub, false, message);
       //Subscribe
-      uint16_t packetIdSub1 = mqtt_client.subscribe(mqtt_intopic, qossub);
+      uint16_t packetIdSub1 = mqtt_client->subscribe(mqtt_intopic, qossub);
       DBG_OUTPUT_PORT.printf("Subscribing at QoS %d, packetId: ", qossub); DBG_OUTPUT_PORT.println(packetIdSub1);
       if(mqtt_lwt_boot_flag) {
-        mqtt_client.publish(mqtt_will_topic, qospub, false, "ONLINE");
+        mqtt_client->publish(mqtt_will_topic, qospub, false, "ONLINE");
         mqtt_lwt_boot_flag = false;
       }
       #if defined(ENABLE_HOMEASSISTANT)
         ha_send_data.detach();
-        uint16_t packetIdSub2 = mqtt_client.subscribe((char *)mqtt_ha_state_in, qossub);
+        uint16_t packetIdSub2 = mqtt_client->subscribe((char *)mqtt_ha_state_in, qossub);
         DBG_OUTPUT_PORT.printf("Subscribing at QoS %d, packetId: ", qossub); DBG_OUTPUT_PORT.println(packetIdSub2);
         #if defined(MQTT_HOME_ASSISTANT_SUPPORT)
           const size_t bufferSize = JSON_ARRAY_SIZE(strip->getModeCount()+ 4) + JSON_OBJECT_SIZE(11) + 1500;
           DynamicJsonDocument jsonBuffer(bufferSize);
-          JsonObject json = jsonBuffer.to<JsonObject>();
+          JsonObject root = jsonBuffer.to<JsonObject>();
-          json["name"] = HOSTNAME;
+          root["name"] = HOSTNAME;
           #if defined(MQTT_HOME_ASSISTANT_0_87_SUPPORT)
-          json["schema"] = "json";
+          root["schema"] = "json";
           #else
-          json["platform"] = "mqtt_json";
+          root["platform"] = "mqtt_json";
           #endif
-          json["state_topic"] = mqtt_ha_state_out;
+          root["state_topic"] = mqtt_ha_state_out;
-          json["command_topic"] = mqtt_ha_state_in;
+          root["command_topic"] = mqtt_ha_state_in;
           #if !defined(MQTT_HOME_ASSISTANT_0_87_SUPPORT)
-          json["on_command_type"] = "first";
+          root["on_command_type"] = "first";
           #endif
-          json["brightness"] = "true";
+          root["brightness"] = "true";
-          json["rgb"] = "true";
+          root["rgb"] = "true";
           if (strstr(WS2812FXStripSettings.RGBOrder, "W") != NULL) {
-            json["white_value"]= "true";
+            root["white_value"]= "true";
           }
-          json["optimistic"] = "false";
+          root["optimistic"] = "false";
-          json["color_temp"] = "true";
+          root["color_temp"] = "true";
-          json["effect"] = "true";
+          root["effect"] = "true";
-          JsonArray effect_list = json.createNestedArray("effect_list");
+          JsonArray effect_list = root.createNestedArray("effect_list");
           effect_list.add("OFF");
           effect_list.add("AUTO");
           #if defined(ENABLE_TV)
@@ -1451,10 +1463,10 @@ void webSocketEvent(uint8_t num, WStype_t type, uint8_t * payload, size_t lenght
           for (uint8_t i = 0; i < strip->getModeCount(); i++) {
             effect_list.add(strip->getModeName(i));
           }
-          char buffer[measureJson(json) + 1];
+          char buffer[measureJson(root) + 1];
-          serializeJson(json, buffer, sizeof(buffer));
+          serializeJson(root, buffer, sizeof(buffer));
           jsonBuffer.clear();
-          mqtt_client.publish(mqtt_ha_config, qospub, true, buffer);
+          mqtt_client->publish(mqtt_ha_config, qospub, true, buffer);
         #endif
       #endif
     }
@@ -1650,23 +1662,23 @@ void webSocketEvent(uint8_t num, WStype_t type, uint8_t * payload, size_t lenght
           DBG_OUTPUT_PORT.print("Config: ");
           if (!error) {
             DBG_OUTPUT_PORT.println("Parsed!");
-            JsonObject json = jsonBuffer.as<JsonObject>();
+            JsonObject root = jsonBuffer.as<JsonObject>();
-            serializeJson(json, DBG_OUTPUT_PORT);
+            serializeJson(root, DBG_OUTPUT_PORT);
             DBG_OUTPUT_PORT.println("");
-            strcpy(HOSTNAME, json["hostname"]);
+            strcpy(HOSTNAME, root["hostname"]);
           #if defined(ENABLE_MQTT)
-            strcpy(mqtt_host, json["mqtt_host"]);
+            strcpy(mqtt_host, root["mqtt_host"]);
-            mqtt_port = (uint16_t) json["mqtt_port"];
+            mqtt_port = (uint16_t) root["mqtt_port"];
-            strcpy(mqtt_user, json["mqtt_user"]);
+            strcpy(mqtt_user, root["mqtt_user"]);
-            strcpy(mqtt_pass, json["mqtt_pass"]);
+            strcpy(mqtt_pass, root["mqtt_pass"]);
           #endif
-            WS2812FXStripSettings.stripSize = constrain ((uint8_t) json["ws_cnt"], 1, MAXLEDS);
+            WS2812FXStripSettings.stripSize = constrain ((uint16_t) root["ws_cnt"], 1, MAXLEDS);
             char tmp_rgbOrder[5];
-            strcpy(tmp_rgbOrder, json["ws_rgbo"]);
+            strcpy(tmp_rgbOrder, root["ws_rgbo"]);
             checkRGBOrder(tmp_rgbOrder);
             uint8_t temp_pin;
-            WS2812FXStripSettings.pin = checkPin((uint8_t) json["ws_pin"]);  
+            checkPin((uint8_t) root["ws_pin"]);  
-            WS2812FXStripSettings.fxoptions = ((constrain((uint8_t) json["ws_fxopt"], 0, 255)>>1)<<1);        
+            WS2812FXStripSettings.fxoptions = ((constrain((uint8_t) root["ws_fxopt"], 0, 255)>>1)<<1);        
             jsonBuffer.clear();
             return true;
           } else {
@@ -1730,25 +1742,25 @@ void webSocketEvent(uint8_t num, WStype_t type, uint8_t * payload, size_t lenght
           DBG_OUTPUT_PORT.print("Config: ");
           if (!error) {
             DBG_OUTPUT_PORT.print("Parsed");
-            JsonObject json = jsonBuffer.as<JsonObject>();
+            JsonObject root = jsonBuffer.as<JsonObject>();
-            serializeJson(json, DBG_OUTPUT_PORT);
+            serializeJson(root, DBG_OUTPUT_PORT);
             DBG_OUTPUT_PORT.println("");
-            mode = static_cast<MODE>((int) json["mode"]);
+            mode = static_cast<MODE>((int) root["mode"]);
-            ws2812fx_mode = json["ws2812fx_mode"];
+            ws2812fx_mode = root["ws2812fx_mode"];
-            ws2812fx_speed = json["speed"];
+            ws2812fx_speed = root["speed"];
-            brightness = json["brightness"];
+            brightness = root["brightness"];
-            main_color.white = (uint8_t) json["color"][0];
+            main_color.white = (uint8_t) root["color"][0];
-            main_color.red = (uint8_t) json["color"][1];
+            main_color.red = (uint8_t) root["color"][1];
-            main_color.green = (uint8_t) json["color"][2];
+            main_color.green = (uint8_t) root["color"][2];
-            main_color.blue = (uint8_t) json["color"][3];
+            main_color.blue = (uint8_t) root["color"][3];
-            back_color.white = (uint8_t) json["color"][4];
+            back_color.white = (uint8_t) root["color"][4];
-            back_color.red = (uint8_t) json["color"][5];
+            back_color.red = (uint8_t) root["color"][5];
-            back_color.green = (uint8_t) json["color"][6];
+            back_color.green = (uint8_t) root["color"][6];
-            back_color.blue = (uint8_t) json["color"][7];
+            back_color.blue = (uint8_t) root["color"][7];
-            xtra_color.white = (uint8_t) json["color"][8];  
+            xtra_color.white = (uint8_t) root["color"][8];  
-            xtra_color.red = (uint8_t) json["color"][9];
+            xtra_color.red = (uint8_t) root["color"][9];
-            xtra_color.green = (uint8_t) json["color"][10];
+            xtra_color.green = (uint8_t) root["color"][10];
-            xtra_color.blue = (uint8_t) json["color"][11];
+            xtra_color.blue = (uint8_t) root["color"][11];
             convertColors();
             jsonBuffer.clear();
             return true;

Arduino/McLighting/rest_api.h

@@ -19,23 +19,23 @@
 // ***************************************************************************
 
   server.on("/", HTTP_GET, [&](){
-#if defined(USE_HTML_MIN_GZ)
+    if (USE_HTML_MIN_GZ) {
-    server.sendHeader("Content-Encoding", "gzip", true);
+      server.sendHeader("Content-Encoding", "gzip", true);
-    server.send_P(200, PSTR("text/html"), index_htm_gz, index_htm_gz_len);
+      server.send_P(200, PSTR("text/html"), index_htm_gz, index_htm_gz_len);
-#else
+    } else {
-    if (!handleFileRead(server.uri()))
+      if (!handleFileRead(server.uri()))
-      handleNotFound();
+        handleNotFound();
-#endif
+    }
   });
   
   server.on("/edit", HTTP_GET, [&](){
-#if defined(USE_HTML_MIN_GZ)
+    if (USE_HTML_MIN_GZ) {
-    server.sendHeader("Content-Encoding", "gzip", true);
+      server.sendHeader("Content-Encoding", "gzip", true);
-    server.send_P(200, PSTR("text/html"), edit_htm_gz, edit_htm_gz_len);
+      server.send_P(200, PSTR("text/html"), edit_htm_gz, edit_htm_gz_len);
-#else
+    } else {
-    if (!handleFileRead("/edit.htm"))
+      if (!handleFileRead("/edit.htm"))
-      handleNotFound();
+        handleNotFound();
-#endif
+    }
   });
 
 
@@ -51,114 +51,115 @@
   server.on("/esp_status", HTTP_GET, []() { //get heap status, analog input value and all GPIO statuses in one json call 
     const size_t bufferSize = JSON_OBJECT_SIZE(31) + 1500;
     DynamicJsonDocument jsonBuffer(bufferSize);
-    JsonObject json = jsonBuffer.to<JsonObject>();
+    JsonObject root = jsonBuffer.to<JsonObject>();
-    json["HOSTNAME"] = HOSTNAME;
+    root["HOSTNAME"] = HOSTNAME;
-    json["version"] = SKETCH_VERSION;
+    root["version"] = SKETCH_VERSION;
-    json["heap"] = ESP.getFreeHeap();
+    root["heap"] = ESP.getFreeHeap();
-    json["sketch_size"] = ESP.getSketchSize();
+    root["sketch_size"] = ESP.getSketchSize();
-    json["free_sketch_space"] = ESP.getFreeSketchSpace();
+    root["free_sketch_space"] = ESP.getFreeSketchSpace();
-    json["flash_chip_size"] = ESP.getFlashChipSize();
+    root["flash_chip_size"] = ESP.getFlashChipSize();
-    json["flash_chip_real_size"] = ESP.getFlashChipRealSize();
+    root["flash_chip_real_size"] = ESP.getFlashChipRealSize();
-    json["flash_chip_speed"] = ESP.getFlashChipSpeed();
+    root["flash_chip_speed"] = ESP.getFlashChipSpeed();
-    json["sdk_version"] = ESP.getSdkVersion();
+    root["sdk_version"] = ESP.getSdkVersion();
-    json["core_version"] = ESP.getCoreVersion();
+    root["core_version"] = ESP.getCoreVersion();
-    json["cpu_freq"] = ESP.getCpuFreqMHz();
+    root["cpu_freq"] = ESP.getCpuFreqMHz();
-    json["chip_id"] = ESP.getFlashChipId();
+    root["chip_id"] = ESP.getFlashChipId();
     #if defined(USE_WS2812FX_DMA)
       #if USE_WS2812FX_DMA == 0
-        json["animation_lib"] = "WS2812FX_DMA";
+        root["animation_lib"] = "WS2812FX_DMA";
       #endif
       #if USE_WS2812FX_DMA == 1
-        json["animation_lib"] = "WS2812FX_UART1";
+        root["animation_lib"] = "WS2812FX_UART1";
       #endif
       #if USE_WS2812FX_DMA == 2
-        json["animation_lib"] = "WS2812FX_UART2";
+        root["animation_lib"] = "WS2812FX_UART2";
       #endif
     #else
-      json["animation_lib"] = "WS2812FX";
+      root["animation_lib"] = "WS2812FX";
     #endif
-    json["ws2812_pin"]  = WS2812FXStripSettings.pin;
+    root["ws2812_pin"]  = WS2812FXStripSettings.pin;
-    json["led_count"] = WS2812FXStripSettings.stripSize;
+    root["led_count"] = WS2812FXStripSettings.stripSize;
-    json["rgb_order"] = WS2812FXStripSettings.RGBOrder;
+    root["rgb_order"] = WS2812FXStripSettings.RGBOrder;
     if (strstr(WS2812FXStripSettings.RGBOrder, "W") != NULL) {
-      json["rgbw_mode"] = "ON";
+      root["rgbw_mode"] = "ON";
     } else {
-      json["rgbw_mode"] = "OFF";
+      root["rgbw_mode"] = "OFF";
     }
     #if defined(ENABLE_BUTTON)
-      json["button_mode"] = "ON";
+      root["button_mode"] = "ON";
-      json["button_pin"] = ENABLE_BUTTON;
+      root["button_pin"] = ENABLE_BUTTON;
     #else
-      json["button_mode"] = "OFF";
+      root["button_mode"] = "OFF";
     #endif
     #if defined(ENABLE_BUTTON_GY33)
-      json["button_gy33"] = "ON";
+      root["button_gy33"] = "ON";
-      json["gy33_pin"] = ENABLE_BUTTON_GY33;
+      root["gy33_pin"] = ENABLE_BUTTON_GY33;
     #else
-      json["button_gy33"] = "OFF";
+      root["button_gy33"] = "OFF";
     #endif
     #if defined(ENABLE_REMOTE)
-      json["ir_remote"] = "ON";
+      root["ir_remote"] = "ON";
-      json["tsop_ir_pin"] = ENABLE_REMOTE;
+      root["tsop_ir_pin"] = ENABLE_REMOTE;
     #else
-      json["ir_remote"] = "OFF";
+      root["ir_remote"] = "OFF";
     #endif
     #if defined(ENABLE_MQTT)
       #if ENABLE_MQTT == 0
-        json["mqtt"] = "MQTT";
+        root["mqtt"] = "MQTT";
       #endif
       #if ENABLE_MQTT == 1
-        json["mqtt"] = "AMQTT";
+        root["mqtt"] = "AMQTT";
       #endif
     #else
-      json["mqtt"] = "OFF";
+      root["mqtt"] = "OFF";
     #endif
     #if defined(ENABLE_HOMEASSISTANT)
-      json["home_assistant"] = "ON";
+      root["home_assistant"] = "ON";
     #else
-      json["home_assistant"] = "OFF";
+      root["home_assistant"] = "OFF";
     #endif
     #if defined(ENABLE_LEGACY_ANIMATIONS)
-      json["legacy_animations"] = "ON";
+      root["legacy_animations"] = "ON";
     #else
-      json["legacy_animations"] = "OFF";
+      root["legacy_animations"] = "OFF";
     #endif
     #if defined(ENABLE_TV)
-      json["tv_animation"] = "ON";
+      root["tv_animation"] = "ON";
     #else
-      json["tv_animation"] = "OFF";
+      root["tv_animation"] = "OFF";
     #endif
     #if defined(ENABLE_E131)
-      json["e131_animations"] = "ON";
+      root["e131_animations"] = "ON";
     #else
-      json["e131_animations"] = "OFF";
+      root["e131_animations"] = "OFF";
     #endif
     #if defined(ENABLE_OTA)
       #if ENABLE_OTA == 0
-        json["ota"] = "ARDUINO";
+        root["ota"] = "ARDUINO";
       #endif
       #if ENABLE_OTA == 1
-        json["ota"] = "HTTP";
+        root["ota"] = "HTTP";
       #endif
     #else
-      json["ota"] = "OFF";
+      root["ota"] = "OFF";
     #endif
     #if defined(ENABLE_STATE_SAVE)
       #if ENABLE_STATE_SAVE == 1
-        json["state_save"] = "SPIFFS";
+        root["state_save"] = "SPIFFS";
       #endif
       #if ENABLE_STATE_SAVE == 0
-        json["state_save"] = "EEPROM";
+        root["state_save"] = "EEPROM";
       #endif
     #else
-      json["state_save"] = "OFF";
+      root["state_save"] = "OFF";
     #endif
-    
+    uint16_t msg_len = measureJson(root) + 1;
-    String json_str;
+    char * buffer = (char *) malloc(msg_len);
-    serializeJson(json, json_str);
+    serializeJson(root, buffer, msg_len);
     jsonBuffer.clear();
     server.sendHeader("Access-Control-Allow-Origin", "*");
-    server.send(200, "application/json", json_str);
+    server.send(200, "application/json", buffer);
+    free (buffer);
   });
   
   server.on("/restart", []() {
@@ -291,7 +292,7 @@
     
 #if !defined(USE_WS2812FX_DMA)    
     if(server.hasArg("wspin")){
-      if (checkPin(server.arg("wspin").toInt()) {
+      if (checkPin(server.arg("wspin").toInt())) {
         updateStrip = true;
         DBG_OUTPUT_PORT.println(WS2812FXStripSettings.pin);
       } else {

Arduino/McLighting/version_info.ino

@@ -140,4 +140,9 @@
  * Version Bump to 2.2.3 rgbw 3colors
  * PubSubClient Bug fixes
  * Reverted Pointers for MQTT for the moment
+ * 
+ * 21 Mar 2019
+ * Bugfixes
+ * added pointer for MQTT again
+ * Removed some String datatype and replaced with char array
  */

clients/newWebClient/index.htm

@@ -1341,7 +1341,7 @@ function displayColors(all = false) {
         document.getElementById("colorHex" + data.color_num).innerHTML = "#" + rgbToHex([white.value, red.value, green.value, blue.value]);
         // Send color
         clearTimeout(sendIt);
-        sendIt = setTimeout(function() { set_color(); }, 500);
+        sendIt = setTimeout(function() { set_color(); }, 50);
     } else {
         document.getElementById("colorSel1").style.backgroundColor = `rgb(${data.color.r}, ${data.color.g}, ${data.color.b})`;
         document.getElementById("colorHex1").innerHTML = "#" + data.color.hex;
@@ -1430,7 +1430,7 @@ function changeRangeNumVal(){
         initSliderColors();
         // Send Brightness
         clearTimeout(sendIt);
-        sendIt = setTimeout(function() { set_brightness(); }, 500);
+        sendIt = setTimeout(function() { set_brightness(); }, 50);
     });
     speedNumVal.addEventListener('change', ()=>{
         // make sure numbers are entered between 0 to 255
@@ -1438,7 +1438,7 @@ function changeRangeNumVal(){
         data.speed = speed.value;
         // Send Speed
         clearTimeout(sendIt);
-        sendIt = setTimeout(function() { set_speed(); }, 500);
+        sendIt = setTimeout(function() { set_speed(); }, 50);
     });
 }
 function checkNumVal(numVal, curVal) {

platformio.ini

@@ -15,30 +15,49 @@ env_default = nodemcuv2
 description = The ESP8266 based multi-client lighting gadget
 
 [common]
+# ------------------------------------------------------------------------------
+# PLATFORM:
+#   !! DO NOT confuse platformio's ESP8266 development platform with Arduino core for ESP8266
+#   We use Arduino Core 2.5.0 (platformIO 2.0.4) as default
+#
+#   arduino core 2.3.0 = platformIO 1.5.0
+#   arduino core 2.4.0 = platformIO 1.6.0
+#   arduino core 2.4.1 = platformIO 1.7.3
+#   arduino core 2.4.2 = platformIO 1.8.0
+#   arduino core 2.5.0 = platformIO 2.0.4
+#   arduino core stage = platformIO feature#stage
+# ------------------------------------------------------------------------------
+arduino_core_2_3_0 = espressif8266@1.5.0
+arduino_core_2_4_0 = espressif8266@1.6.0
+arduino_core_2_4_1 = espressif8266@1.7.3
+arduino_core_2_4_2 = espressif8266@1.8.0
+arduino_core_2_5_0 = espressif8266@2.0.4
+arduino_core_stage = https://github.com/platformio/platform-espressif8266.git#feature/stage
+
 framework = arduino
-platform = espressif8266@1.8.0
+platform = ${common.arduino_core_2_4_2}
-; platform = https://github.com/platformio/platform-espressif8266.git
+; platform = ${common.arduino_core_2_5_0}
-; platform = https://github.com/platformio/platform-espressif8266.git#feature/stage
-; platform = https://github.com/platformio/platform-espressif8266.git#develop
 build_flags =
   -DPIO_FRAMEWORK_ARDUINO_LWIP2_HIGHER_BANDWIDTH
-  -DMQTT_MAX_PACKET_SIZE=2048 ; PubSubClient Specific flags
+  -DMQTT_MAX_PACKET_SIZE=512 ; PubSubClient Specific flags
   -w ; supress all warnings
 monitor_speed = 115200
-board_build.flash_mode = dout
+board_build.flash_mode = dio
 upload_speed = 115200
 upload_resetmethod = nodemcu
 lib_deps =
   WiFiManager@0.14
   AsyncMqttClient
-  ArduinoJson
+  ArduinoJson@6.9.1
   WS2812FX
-  NeoPixelBus@2.4.1
+  NeoPixelBus
   WebSockets
   ESPAsyncE131
   ESPAsyncUDP
   https://github.com/FabLab-Luenen/GY33_MCU
-  Brzo_I2C
+  Brzo I2C
+  IRremoteESP8266@2.5.3
+  FastLED
 
 [env:esp01_1m]
 board = esp01_1m
@@ -55,7 +74,9 @@ lib_deps = ${common.lib_deps}
 board = nodemcuv2
 framework = ${common.framework}
 platform = ${common.platform}
-build_flags = ${common.build_flags}
+build_flags = 
+  ${common.build_flags}
+  ; -Wl,-Teagle.flash.4m3m.ld  ;;;; Required for core > v2.5.0 or staging version
 monitor_speed = ${common.monitor_speed}
 upload_speed = ${common.upload_speed}
 upload_resetmethod = ${common.upload_resetmethod}