diff --git a/platformio.ini b/platformio.ini
index 6532f467..19c18bab 100644
--- a/platformio.ini
+++ b/platformio.ini
@@ -95,16 +95,6 @@ debug_flags = -D DEBUG=1 -D WLED_DEBUG -DDEBUG_ESP_WIFI -DDEBUG_ESP_HTTP_CLIENT
 #  This reduces the OTA size with ~45KB, so it's especially useful on low memory boards (512k/1m).
 # ------------------------------------------------------------------------------
 build_flags =
-  -Wno-switch
-  -Wno-deprecated-declarations
-  -Wno-write-strings
-  -Wno-unused-variable
-  -Wno-unused-value
-  -Wno-sign-compare
-  -Wno-unused-but-set-variable
-  -Wno-return-type
-  -Wno-sequence-point
-  -Wno-narrowing
   -DMQTT_MAX_PACKET_SIZE=1024
   -DSECURE_CLIENT=SECURE_CLIENT_BEARSSL
   -DBEARSSL_SSL_BASIC
@@ -121,9 +111,6 @@ build_flags =
   ; -D USERMOD_SENSORSTOMQTT
 
 build_unflags =
-  -Wall
-  -Wreorder
-  -Wdeprecated-declarations
 
 # enables all features for travis CI
 build_flags_all_features =
@@ -159,7 +146,7 @@ build_flags =
   -DMIMETYPE_MINIMAL
 
 [esp32]
-build_flags = -w -g
+build_flags = -g
   -DARDUINO_ARCH_ESP32
   -DCONFIG_LITTLEFS_FOR_IDF_3_2
 
@@ -197,7 +184,7 @@ lib_deps =
     AsyncTCP @ 1.0.3
     IRremoteESP8266 @ 2.7.3
     https://github.com/lorol/LITTLEFS.git
-    https://github.com/Aircoookie/ESPAsyncWebServer.git @ ~2.0.0
+    https://github.com/Aircoookie/ESPAsyncWebServer.git @ ~2.0.2
   #For use of the TTGO T-Display ESP32 Module with integrated TFT display uncomment the following line
     #TFT_eSPI
   #For use SSD1306 OLED display uncomment following
diff --git a/wled00/FX.cpp b/wled00/FX.cpp
index e0172261..e813741a 100644
--- a/wled00/FX.cpp
+++ b/wled00/FX.cpp
@@ -516,7 +516,7 @@ uint16_t WS2812FX::dissolve(uint32_t color) {
     }
   }
 
-  if (SEGENV.call > (255 - SEGMENT.speed) + 15) 
+  if (SEGENV.call > (255 - SEGMENT.speed) + 15U) 
   {
     SEGENV.aux0 = !SEGENV.aux0;
     SEGENV.call = 0;
@@ -1003,7 +1003,7 @@ uint16_t WS2812FX::mode_running_random(void) {
   }
 
   SEGENV.step++;
-  if (SEGENV.step > ((255-SEGMENT.intensity) >> 4))
+  if (SEGENV.step > (uint8_t)((255-SEGMENT.intensity) >> 4))
   {
     SEGENV.step = 0;
   }
@@ -1537,9 +1537,9 @@ uint16_t WS2812FX::mode_oscillate(void)
 
   if (SEGENV.call == 0)
   {
-    oscillators[0] = {SEGLEN/4,   SEGLEN/8,  1, 1};
-    oscillators[1] = {SEGLEN/4*3, SEGLEN/8,  1, 2};
-    oscillators[2] = {SEGLEN/4*2, SEGLEN/8, -1, 1};
+    oscillators[0] = {(int16_t)(SEGLEN/4),   (int8_t)(SEGLEN/8),  1, 1};
+    oscillators[1] = {(int16_t)(SEGLEN/4*3), (int8_t)(SEGLEN/8),  1, 2};
+    oscillators[2] = {(int16_t)(SEGLEN/4*2), (int8_t)(SEGLEN/8), -1, 1};
   }
 
   uint32_t cycleTime = 20 + (2 * (uint32_t)(255 - SEGMENT.speed));
@@ -1888,7 +1888,6 @@ uint16_t WS2812FX::mode_noise16_2()
   for (uint16_t i = 0; i < SEGLEN; i++) {
 
     uint16_t shift_x = SEGENV.step >> 6;                         // x as a function of time
-    uint16_t shift_y = SEGENV.step/42;
 
     uint32_t real_x = (i + shift_x) * scale;                  // calculate the coordinates within the noise field
 
@@ -3126,7 +3125,7 @@ uint16_t WS2812FX::mode_tetrix(void) {
   }
   
   if (SEGENV.step == 0) {             //init
-    drop->speed = 0.0238 * (SEGMENT.speed ? (SEGMENT.speed>>3)+1 : random8(6,40)); // set speed
+    drop->speed = 0.0238 * (SEGMENT.speed ? (SEGMENT.speed>>2)+1 : random8(6,64)); // set speed
     drop->pos   = SEGLEN;             // start at end of segment (no need to subtract 1)
     drop->col   = color_from_palette(random8(0,15)<<4,false,false,0);     // limit color choices so there is enough HUE gap
     SEGENV.step = 1;                  // drop state (0 init, 1 forming, 2 falling)
diff --git a/wled00/FX.h b/wled00/FX.h
index 01d83b38..3371cbdc 100644
--- a/wled00/FX.h
+++ b/wled00/FX.h
@@ -76,7 +76,7 @@
 #define SEGENV           _segment_runtimes[_segment_index]
 #define SEGLEN           _virtualSegmentLength
 #define SEGACT           SEGMENT.stop
-#define SPEED_FORMULA_L  5 + (50*(255 - SEGMENT.speed))/SEGLEN
+#define SPEED_FORMULA_L  (uint16_t)(5 + (50*(255 - SEGMENT.speed))/SEGLEN)
 #define RESET_RUNTIME    memset(_segment_runtimes, 0, sizeof(_segment_runtimes))
 
 // some common colors
diff --git a/wled00/FX_fcn.cpp b/wled00/FX_fcn.cpp
index 79551af8..649ed048 100644
--- a/wled00/FX_fcn.cpp
+++ b/wled00/FX_fcn.cpp
@@ -69,6 +69,11 @@ void WS2812FX::finalizeInit(void)
     _useRgbw |= bus->isRgbw();
     _length += bus->getLength();
   }
+/*
+  //make segment 0 cover the entire strip
+  _segments[0].start = 0;
+  _segments[0].stop = _length;
+*/
 
   setBrightness(_brightness);
 
@@ -360,7 +365,6 @@ uint8_t WS2812FX::getPaletteCount()
 
 
 bool WS2812FX::setEffectConfig(uint8_t m, uint8_t s, uint8_t in, uint8_t p) {
-  uint8_t mainSeg = getMainSegmentId();
   Segment& seg = _segments[getMainSegmentId()];
   uint8_t modePrev = seg.mode, speedPrev = seg.speed, intensityPrev = seg.intensity, palettePrev = seg.palette;
 
diff --git a/wled00/bus_manager.h b/wled00/bus_manager.h
index 4c820419..d38e4092 100644
--- a/wled00/bus_manager.h
+++ b/wled00/bus_manager.h
@@ -338,6 +338,29 @@ class BusManager {
   BusManager() {
 
   };
+
+  //utility to get the approx. memory usage of a given BusConfig
+  uint32_t memUsage(BusConfig &bc) {
+    uint8_t type = bc.type;
+    uint16_t len = bc.count;
+    if (type < 32) {
+      #ifdef ESP8266
+        if (bc.pins[0] == 3) { //8266 DMA uses 5x the mem
+          if (type > 29) return len*20; //RGBW
+          return len*15;
+        }
+        if (type > 29) return len*4; //RGBW
+        return len*3;
+      #else //ESP32 RMT uses double buffer?
+        if (type > 29) return len*8; //RGBW
+        return len*6;
+      #endif
+    }
+
+    if (type > 31 && type < 48) return 5;
+    if (type == 44 || type == 45) return len*4; //RGBW
+    return len*3;
+  }
   
   int add(BusConfig &bc) {
     if (numBusses >= WLED_MAX_BUSSES) return -1;
@@ -357,7 +380,6 @@ class BusManager {
     for (uint8_t i = 0; i < numBusses; i++) delete busses[i];
     numBusses = 0;
   }
-  //void remove(uint8_t id);
 
   void show() {
     for (uint8_t i = 0; i < numBusses; i++) {
diff --git a/wled00/cfg.cpp b/wled00/cfg.cpp
index fed97495..527eadfd 100644
--- a/wled00/cfg.cpp
+++ b/wled00/cfg.cpp
@@ -100,10 +100,11 @@ void deserializeConfig() {
   CJSON(strip.rgbwMode, hw_led[F("rgbwm")]);
 
   JsonArray ins = hw_led["ins"];
-  uint8_t s = 0;
+  uint8_t s = 0;  // bus iterator
   bool skipFirst = skipFirstLed = false;
   useRGBW = false;
   busses.removeAll();
+  uint32_t mem = 0;
   for (JsonObject elm : ins) {
     if (s >= WLED_MAX_BUSSES) break;
     uint8_t pins[5] = {255, 255, 255, 255, 255};
@@ -132,7 +133,8 @@ void deserializeConfig() {
     s++;
     lC += length;
     BusConfig bc = BusConfig(ledType, pins, start, length, colorOrder, reversed, skipFirst);
-    busses.add(bc);
+    mem += busses.memUsage(bc);
+    if (mem <= MAX_LED_MEMORY) busses.add(bc);
   }
   if (lC > ledCount) ledCount = lC; // fix incorrect total length (honour analog setup)
   strip.finalizeInit();
@@ -449,7 +451,6 @@ void serializeConfig() {
 
   JsonArray hw_led_ins = hw_led.createNestedArray("ins");
 
-  uint16_t start = 0;
   for (uint8_t s = 0; s < busses.getNumBusses(); s++) {
     Bus *bus = busses.getBus(s);
     if (!bus || bus->getLength()==0) break;
diff --git a/wled00/const.h b/wled00/const.h
index de1fe41b..faf5729f 100644
--- a/wled00/const.h
+++ b/wled00/const.h
@@ -188,13 +188,19 @@
 // maximum number of LEDs - more than 1500 LEDs (or 500 DMA "LEDPIN 3" driven ones) will cause a low memory condition on ESP8266
 #ifndef MAX_LEDS
 #ifdef ESP8266
-#define MAX_LEDS 1536
+#define MAX_LEDS 1664
 #else
 #define MAX_LEDS 8192
 #endif
 #endif
 
-#define MAX_LEDS_DMA 500
+#ifndef MAX_LED_MEMORY
+#ifdef ESP8266
+#define MAX_LED_MEMORY 5000
+#else
+#define MAX_LED_MEMORY 64000
+#endif
+#endif
 
 // string temp buffer (now stored in stack locally)
 #define OMAX 2048
diff --git a/wled00/data/settings_leds.htm b/wled00/data/settings_leds.htm
index 9026d94e..7388b363 100644
--- a/wled00/data/settings_leds.htm
+++ b/wled00/data/settings_leds.htm
@@ -5,7 +5,7 @@
 	<meta name="viewport" content="width=500">
 	<title>LED Settings</title>
 	<script>
-    var d=document,laprev=55,maxST=1,bmax=5000,bquot=0; //maximum bytes for LED allocation: 5kB for 8266, 32kB for 32
+    var d=document,laprev=55,maxST=2,bmax=5000,LCmax=1536,bquot=0; //maximum bytes for LED allocation: 5kB for 8266, 32kB for 32
 		function H()
 		{
 			window.open("https://github.com/Aircoookie/WLED/wiki/Settings#led-settings");
@@ -31,10 +31,10 @@
             }
           }
       }
-      if (bquot > 100) {var msg = "Too many LEDs for me to handle!"; if (bmax < 10000) msg += " Consider using an ESP32."; alert(msg); return;}
+      if (bquot > 100) {var msg = "Too many LEDs for me to handle!"; if (bmax < 10000) msg += "\n\rConsider using an ESP32."; alert(msg); return;}
       if (d.Sf.reportValidity()) d.Sf.submit();
     }
-		function S(){GetV();setABL(); if (maxST>4) bmax=64000; d.getElementById('m1').innerHTML = bmax;}
+		function S(){GetV();setABL(); d.getElementById('m1').innerHTML = bmax;}
     function enABL()
     {
       var en = d.getElementById('able').checked;
@@ -62,19 +62,17 @@
         case 255: d.Sf.LAsel.value = 255; break;
         default: d.getElementById('LAdis').style.display = 'inline';
       }
-      d.getElementById('wreason2').innerText = d.LDmax?d.LDmax:'500';
       UI();
     }
     //returns mem usage
     function getMem(type, len, p0) {
       //len = parseInt(len);
       if (type < 32) {
-        if (bmax < 10000 && p0 ==3) { //8266 DMA uses 5x the mem
+        if (bmax < 10000 && p0==3) {    //8266 DMA uses 5x the mem
           if (type > 29) return len*20; //RGBW
           return len*15;
-        } else if (bmax > 10000) //ESP32 RMT uses double buffer?
-        {
-          if (type > 29) return len*8; //RGBW
+        } else if (bmax > 10000) {      //ESP32 RMT uses double buffer?
+          if (type > 29) return len*8;  //RGBW
           return len*6;
         }
         if (type > 29) return len*4; //RGBW
@@ -149,13 +147,11 @@
         }
         if (nm=="L0" || nm=="L1") {
           var lc=d.getElementsByName("LC"+LCs[i].name.substring(2))[0];
-          p3u|=(LCs[i].value==3);
-          if(d.LDmax && p3u) lc.max=d.LDmax;
-          else lc.max=d.LCmax;
+          lc.max=LCmax;
         }
         if (nm=="L0" || nm=="L1" || nm=="L2" || nm=="L3" || nm=="L4" || nm=="RL" || nm=="BT" || nm=="IR" || nm=="AX")
           if (LCs[i].value!="" && LCs[i].value!="-1") {
-            if (d.um_p && d.um_p.some((e)=>e==parseInt(LCs[i].value,10))) {alert("Usermod/reserved pin conflict!");LCs[i].value="";LCs[i].focus();continue;}
+            if (d.um_p && d.um_p.some((e)=>e==parseInt(LCs[i].value,10))) {alert("Usermod/reserved pin conflict!");/*LCs[i].value=""*/;LCs[i].focus();continue;}
             for (j=0; j<LCs.length; j++) {
               if (i==j) continue;
               var n2 = LCs[j].name.substring(0,2);
@@ -174,14 +170,11 @@
 
       d.getElementById('m0').innerHTML = memu;
       bquot = memu / bmax * 100;
-      d.getElementById('dbar').style.background = `linear-gradient(90deg, ${bquot > 60 ? bquot > 90 ? "red":"orange":"#ccc"} 0 ${bquot}%%, #444 ${bquot}%% 100%%)`;
-      d.getElementById('ledwarning').style.display = (sLC > d.LCmax || maxLC > 800 || bquot > 80) ? 'inline':'none';
-      d.getElementById('ledwarning2').style.display = (d.LDmax && p3u && (sLC > d.LDmax || maxLC > d.LDmax)) ? 'inline':'none';
-      //TODO add warning "Recommended pins on ESP8266 are 1 and 2 (3 only with low LED count)"
-      //TODO add overmemory warning
-      d.getElementById('wreason').innerHTML = (bquot > 80) ? "than 60%% of max. LED memory" : "800 LEDs per pin";
+      d.getElementById('dbar').style.background = `linear-gradient(90deg, ${bquot > 60 ? (bquot > 90 ? "red":"orange"):"#ccc"} 0 ${bquot}%%, #444 ${bquot}%% 100%%)`;
+      d.getElementById('ledwarning').style.display = (sLC > LCmax || maxLC > 800 || bquot > 80) ? 'inline':'none';
+      d.getElementById('ledwarning').style.color = (sLC > LCmax || maxLC > LCmax || bquot > 100) ? 'red':'orange';
+      d.getElementById('wreason').innerHTML = (bquot > 80) ? "80% of max. LED memory" +(bquot>100 ? ` (<b>WARNING: Using over ${bmax}B!</b>)` : "") : "800 LEDs per pin";
 
-      //var val = Math.ceil((100 + d.Sf.LC.value * laprev)/500)/2;
       var val = Math.ceil((100 + sLC * laprev)/500)/2;
 			val = (val > 5) ? Math.ceil(val) : val;
 			var s = "";
@@ -270,7 +263,7 @@ Reverse (rotated 180°): <input type="checkbox" name="CV${i}">
 		function GetV()
 		{
       //values injected by server while sending HTML
-      //d.LCmax=1536;d.LDmax=500;d.um_p=[1,6,7,8,9,10,...];addLEDs(3);d.Sf.LC.value=250;addLEDs(1);d.Sf.L00.value=2;d.Sf.L10.value=0;d.Sf.LC0.value=250;d.Sf.LT0.value=22;d.Sf.CO0.value=0;d.Sf.LS0.value=0;d.Sf.LS0.checked=0;d.Sf.MA.value=5400;d.Sf.LA.value=55;d.getElementsByClassName("pow")[0].innerHTML="350mA";d.Sf.CA.value=40;d.Sf.AW.value=3;d.Sf.BO.checked=0;d.Sf.BP.value=3;d.Sf.GB.checked=0;d.Sf.GC.checked=1;d.Sf.TF.checked=1;d.Sf.TD.value=700;d.Sf.PF.checked=0;d.Sf.BF.value=64;d.Sf.TB.value=0;d.Sf.TL.value=60;d.Sf.TW.value=1;d.Sf.PB.selectedIndex=0;d.Sf.RV.checked=0;d.Sf.SL.checked=0;d.Sf.RL.value=12;d.Sf.RM.checked=0;d.Sf.BT.value=-1;d.Sf.IR.value=-1;d.Sf.AX.value=-1;
+      //bmax=5000;LCmax=1536;d.um_p=[1,6,7,8,9,10,...];addLEDs(3);d.Sf.LC.value=250;addLEDs(1);d.Sf.L00.value=2;d.Sf.L10.value=0;d.Sf.LC0.value=250;d.Sf.LT0.value=22;d.Sf.CO0.value=0;d.Sf.LS0.value=0;d.Sf.LS0.checked=0;d.Sf.MA.value=5400;d.Sf.LA.value=55;d.getElementsByClassName("pow")[0].innerHTML="350mA";d.Sf.CA.value=40;d.Sf.AW.value=3;d.Sf.BO.checked=0;d.Sf.BP.value=3;d.Sf.GB.checked=0;d.Sf.GC.checked=1;d.Sf.TF.checked=1;d.Sf.TD.value=700;d.Sf.PF.checked=0;d.Sf.BF.value=64;d.Sf.TB.value=0;d.Sf.TL.value=60;d.Sf.TW.value=1;d.Sf.PB.selectedIndex=0;d.Sf.RV.checked=0;d.Sf.SL.checked=0;d.Sf.RL.value=12;d.Sf.RM.checked=0;d.Sf.BT.value=-1;d.Sf.IR.value=-1;d.Sf.AX.value=-1;
     }
 	</script>
 	<style>
@@ -320,10 +313,6 @@ Reverse (rotated 180°): <input type="checkbox" name="CV${i}">
     <div id="ledwarning" style="color: orange; display: none;">
       &#9888; You might run into stability or lag issues.<br>
       Use less than <span id="wreason">800 LEDs per pin</span> for the best experience!<br>
-    </div>
-    <div id="ledwarning2" style="color: orangered; display: none;">
-      &#9888; Pin 3 has memory restrictions.<br>
-      Use less than <span id="wreason2">500</span> LEDs in total to avoid memory issues!<br>
     </div><hr style="width:260px">
     Relay pin: <input type="number" min="-1" max="40" name="RL" onchange="UI()"> Active high <input type="checkbox" name="RM"><br>
     Button pin: <input type="number" min="-1" max="40" name="BT" onchange="UI()"><br>
diff --git a/wled00/e131.cpp b/wled00/e131.cpp
index 58d63779..9ca092a9 100644
--- a/wled00/e131.cpp
+++ b/wled00/e131.cpp
@@ -35,7 +35,8 @@ void handleDDPPacket(e131_packet_t* p) {
   realtimeLock(realtimeTimeoutMs, REALTIME_MODE_DDP);
   
   for (uint16_t i = start; i < stop; i++) {
-    setRealtimePixel(i, data[c++], data[c++], data[c++], 0);
+    setRealtimePixel(i, data[c], data[c+1], data[c+2], 0);
+    c+=3;
   }
 
   bool push = p->flags & DDP_PUSH_FLAG;
@@ -187,11 +188,13 @@ void handleE131Packet(e131_packet_t* p, IPAddress clientIP, byte protocol){
         uint16_t ledsTotal = previousLeds + (dmxChannels - dmxOffset +1) / dmxChannelsPerLed;
         if (!is4Chan) {
           for (uint16_t i = previousLeds; i < ledsTotal; i++) {
-            setRealtimePixel(i, e131_data[dmxOffset++], e131_data[dmxOffset++], e131_data[dmxOffset++], 0);
+            setRealtimePixel(i, e131_data[dmxOffset], e131_data[dmxOffset+1], e131_data[dmxOffset+2], 0);
+            dmxOffset+=3;
           }
         } else {
           for (uint16_t i = previousLeds; i < ledsTotal; i++) {
-            setRealtimePixel(i, e131_data[dmxOffset++], e131_data[dmxOffset++], e131_data[dmxOffset++], e131_data[dmxOffset++]);
+            setRealtimePixel(i, e131_data[dmxOffset], e131_data[dmxOffset+1], e131_data[dmxOffset+2], e131_data[dmxOffset+3]);
+            dmxOffset+=4;
           }
         }
         break;
diff --git a/wled00/file.cpp b/wled00/file.cpp
index c6e8c413..e3aac3ae 100644
--- a/wled00/file.cpp
+++ b/wled00/file.cpp
@@ -33,8 +33,10 @@ File f;
 
 //wrapper to find out how long closing takes
 void closeFile() {
-  DEBUGFS_PRINT(F("Close -> "));
-  uint32_t s = millis();
+  #ifdef WLED_DEBUG_FS
+    DEBUGFS_PRINT(F("Close -> "));
+    uint32_t s = millis();
+  #endif
   f.close();
   DEBUGFS_PRINTF("took %d ms\n", millis() - s);
   doCloseFile = false;
@@ -53,7 +55,6 @@ bool bufferedFind(const char *target, bool fromStart = true) {
   size_t targetLen = strlen(target);
 
   size_t index = 0;
-  byte c;
   uint16_t bufsize = 0, count = 0;
   byte buf[FS_BUFSIZE];
   if (fromStart) f.seek(0);
diff --git a/wled00/html_settings.h b/wled00/html_settings.h
index 73028bbd..dacfc4c9 100644
--- a/wled00/html_settings.h
+++ b/wled00/html_settings.h
@@ -72,7 +72,7 @@ Do not enable if WiFi is working correctly, increases power consumption.</i><div
 // Autogenerated from wled00/data/settings_leds.htm, do not edit!!
 const char PAGE_settings_leds[] PROGMEM = R"=====(<!DOCTYPE html><html lang="en"><head><meta charset="utf-8"><meta 
 name="viewport" content="width=500"><title>LED Settings</title><script>
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LED memory":"800 LEDs per pin";var E=Math.ceil((100+u*laprev)/500)/2;E=E>5?Math.ceil(E):E;i="";var b=30==d.Sf.LAsel.value,I=255==d.Sf.LAsel.value;E<1.02&&!b&&!I?i="ESP 5V pin with 1A USB supply":(i+=b?"12V ":I?"WS2815 12V ":"5V ",i+=E,i+="A supply connected to LEDs");var x=Math.ceil((100+u*laprev)/1500)/2,h="(for most effects, ~";h+=x=x>5?Math.ceil(x):x,h+="A is enough)<br>",d.getElementById("psu").innerHTML=i,d.getElementById("psu2").innerHTML=I?"":h}function addLEDs(e){if(e>1)return maxST=e,void(d.getElementById("+").style.display="inline");var n=d.getElementsByClassName("iST"),t=n.length;if(!(1==e&&t>=maxST||-1==e&&0==t)){var a=d.getElementById("mLC");if(1==e){var i=`<div class="iST">\n${t>0?'<hr style="width:260px">':""}\n${t+1}:\n<select name="LT${t}" onchange="UI(true)">\n<option value="22">WS281x</option>\n<option value="30">SK6812 RGBW</option>\n<option value="31">TM1814</option>\n<option value="24">400kHz</option>\n<option value="50">WS2801</option>\n<option value="51">APA102</option>\n<option value="52">LPD8806</option>\n<option value="53">P9813</option>\n<option value="41">PWM White</option>\n<option value="42">PWM WWCW</option>\n<option value="43">PWM RGB</option>\n<option value="44">PWM RGBW</option>\n<option value="45">PWM RGBWC</option>\n</select>&nbsp;\nColor Order:\n<select name="CO${t}">\n<option value="0">GRB</option>\n<option value="1">RGB</option>\n<option value="2">BRG</option>\n<option value="3">RBG</option>\n<option value="4">BGR</option>\n<option value="5">GBR</option>\n</select><br>\n<span id="p0d${t}">Pin:</span> <input type="number" name="L0${t}" min="0" max="40" required style="width:35px" onchange="UI()"/>\n<span id="p1d${t}">Clock:</span> <input type="number" name="L1${t}" min="0" max="40" style="width:35px" onchange="UI()"/>\n<span id="p2d${t}"></span><input type="number" name="L2${t}" min="0" max="40" style="width:35px" onchange="UI()"/>\n<span id="p3d${t}"></span><input type="number" name="L3${t}" min="0" max="40" style="width:35px" onchange="UI()"/>\n<span id="p4d${t}"></span><input type="number" name="L4${t}" min="0" max="40" style="width:35px" onchange="UI()"/>\n<br>\n<span id="psd${t}">Start:</span> <input type="number" name="LS${t}" id="ls${t}" min="0" max="8191" value="0" required />&nbsp;\n<div id="dig${t}" style="display:inline">\nCount: <input type="number" name="LC${t}" min="0" max="2048" value="1" required oninput="UI()" /><br>\nReverse (rotated 180°): <input type="checkbox" name="CV${t}">\n</div>\n&nbsp;RGBW: <input id="ew${t}" type="checkbox" name="EW${t}"><br>\n</div>`;a.insertAdjacentHTML("beforeend",i)}-1==e&&(n[--t].remove(),--t),d.getElementById("+").style.display=t<maxST-1?"inline":"none",d.getElementById("-").style.display=t>0?"inline":"none",UI()}}function GetV() {var d=document;
+var d=document,laprev=55,maxST=2,bmax=5e3,LCmax=1536,bquot=0;function H(){window.open("https://github.com/Aircoookie/WLED/wiki/Settings#led-settings")}function B(){window.open("/settings","_self")}function trySubmit(){var e=d.getElementsByTagName("input");for(i=0;i<e.length;i++){var n=e[i].name.substring(0,2);if(("L0"==n||"L1"==n||"L2"==t||"L3"==t||"L4"==t||"RL"==n||"BT"==n||"IR"==n||"AX"==n)&&""!=e[i].value&&"-1"!=e[i].value){if(d.um_p&&d.um_p.some(n=>n==parseInt(e[i].value,10)))return alert("Usermod/reserved pin conflict!"),void e[i].focus();for(j=i+1;j<e.length;j++){var t=e[j].name.substring(0,2);if(("L0"==t||"L1"==t||"L2"==t||"L3"==t||"L4"==t||"RL"==t||"BT"==t||"IR"==t||"AX"==t)&&""!=e[j].value&&e[i].value==e[j].value)return alert("Pin conflict!"),void e[j].focus()}}}if(bquot>100){var a="Too many LEDs for me to handle!";return bmax<1e4&&(a+="\n\rConsider using an ESP32."),void alert(a)}d.Sf.reportValidity()&&d.Sf.submit()}function S(){GetV(),setABL(),d.getElementById("m1").innerHTML=bmax}function enABL(){var e=d.getElementById("able").checked;d.Sf.LA.value=e?laprev:0,d.getElementById("abl").style.display=e?"inline":"none",d.getElementById("psu2").style.display=e?"inline":"none",d.Sf.LA.value>0&&setABL()}function enLA(){var e=d.Sf.LAsel.value;d.Sf.LA.value=e,d.getElementById("LAdis").style.display=50==e?"inline":"none",UI()}function setABL(){switch(d.getElementById("able").checked=!0,d.Sf.LAsel.value=50,parseInt(d.Sf.LA.value)){case 0:d.getElementById("able").checked=!1,enABL();break;case 30:d.Sf.LAsel.value=30;break;case 35:d.Sf.LAsel.value=35;break;case 55:d.Sf.LAsel.value=55;break;case 255:d.Sf.LAsel.value=255;break;default:d.getElementById("LAdis").style.display="inline"}UI()}function getMem(e,n,t){return e<32?bmax<1e4&&3==t?e>29?20*n:15*n:bmax>1e4?e>29?8*n:6*n:e>29?4*n:3*n:e>31&&e<48?5:44==e||45==e?4*n:3*n}function UI(e=!1){var n=!1,t=0;d.getElementById("ampwarning").style.display=d.Sf.MA.value>7200?"inline":"none",255==d.Sf.LA.value?laprev=12:d.Sf.LA.value>0&&(laprev=d.Sf.LA.value);var a=d.getElementsByTagName("select");for(c=0;c<a.length;c++)if("LT"==a[c].name.substring(0,2)){L=a[c].name.substring(2);var i=parseInt(a[c].value,10);d.getElementById("p0d"+L).innerHTML=i>49?"Data:":i>41?"Pins:":"Pin:",d.getElementById("p1d"+L).innerHTML=i>49?"Clk:":"";var l=d.getElementsByName("L1"+L)[0];for(t+=getMem(i,d.getElementsByName("LC"+L)[0].value,d.getElementsByName("L0"+L)[0].value),p=1;p<5;p++){(l=d.getElementsByName("L"+p+L)[0])&&(i>49&&1==p||i>41&&i<50&&p+40<i?(l.style.display="inline",l.required=!0):(l.style.display="none",l.required=!1,l.value=""))}d.getElementById("ls"+L).readOnly=!(i>31&&i<48),d.getElementById("LC").readOnly=!(i>31&&i<48),e&&(d.getElementById("ew"+L).checked=30==i||31==i||44==i||45==i,d.getElementById("ls"+L).value=L+1),d.getElementById("ew"+L).onclick=i>31&&i<48?function(){return!1}:function(){},n|=d.getElementById("ew"+L).checked,d.getElementById("dig"+L).style.display=i>31&&i<48?"none":"inline",d.getElementById("psd"+L).innerHTML=i>31&&i<48?"Index:":"Start:"}var o=d.querySelectorAll(".wc"),s=o.length;for(c=0;c<s;c++)o[c].style.display=n?"inline":"none";var r=d.getElementsByTagName("input"),u=0,m=0;for(c=0;c<r.length;c++){var v=r[c].name.substring(0,2);if("LC"!=v||"LC"===r[c].name){if("L0"==v||"L1"==v)d.getElementsByName("LC"+r[c].name.substring(2))[0].max=LCmax;if(("L0"==v||"L1"==v||"L2"==v||"L3"==v||"L4"==v||"RL"==v||"BT"==v||"IR"==v||"AX"==v)&&""!=r[c].value&&"-1"!=r[c].value){if(d.um_p&&d.um_p.some(e=>e==parseInt(r[c].value,10))){alert("Usermod/reserved pin conflict!"),r[c].focus();continue}for(j=0;j<r.length;j++)if(c!=j){var y=r[j].name.substring(0,2);if(("L0"==y||"L1"==y||"L2"==y||"L3"==y||"L4"==y||"RL"==y||"BT"==y||"IR"==y||"AX"==y)&&""!=r[j].value&&r[c].value==r[j].value){alert("Pin conflict!"),r[j].value="",r[j].focus();break}}}}else{var L=r[c].name.substring(2),g=parseInt(r[c].value,10);d.getElementById("ls"+L).readOnly&&(d.getElementById("ls"+L).value=u),g&&(u+=g,g>m&&(m=g))}}if(d.getElementById("LC").readOnly&&(d.getElementsByName("LC")[0].value=u),d.activeElement==d.getElementsByName("LC")[0]){var c=d.getElementsByClassName("iST").length;1==c&&(d.getElementsByName("LC0")[0].value=d.getElementsByName("LC")[0].value)}d.getElementById("m0").innerHTML=t,bquot=t/bmax*100,d.getElementById("dbar").style.background=`linear-gradient(90deg, ${bquot>60?bquot>90?"red":"orange":"#ccc"} 0 ${bquot}%%, #444 ${bquot}%% 100%%)`,d.getElementById("ledwarning").style.display=u>LCmax||m>800||bquot>80?"inline":"none",d.getElementById("ledwarning").style.color=u>LCmax||m>LCmax||bquot>100?"red":"orange",d.getElementById("wreason").innerHTML=bquot>80?"80% of max. LED memory"+(bquot>100?` (<b>WARNING: Using over ${bmax}B!</b>)`:""):"800 LEDs per pin";var B=Math.ceil((100+u*laprev)/500)/2;B=B>5?Math.ceil(B):B;a="";var f=30==d.Sf.LAsel.value,b=255==d.Sf.LAsel.value;B<1.02&&!f&&!b?a="ESP 5V pin with 1A USB supply":(a+=f?"12V ":b?"WS2815 12V ":"5V ",a+=B,a+="A supply connected to LEDs");var E=Math.ceil((100+u*laprev)/1500)/2,I="(for most effects, ~";I+=E=E>5?Math.ceil(E):E,I+="A is enough)<br>",d.getElementById("psu").innerHTML=a,d.getElementById("psu2").innerHTML=b?"":I}function addLEDs(e){if(e>1)return maxST=e,void(d.getElementById("+").style.display="inline");var n=d.getElementsByClassName("iST"),t=n.length;if(!(1==e&&t>=maxST||-1==e&&0==t)){var a=d.getElementById("mLC");if(1==e){var i=`<div class="iST">\n${t>0?'<hr style="width:260px">':""}\n${t+1}:\n<select name="LT${t}" onchange="UI(true)">\n<option value="22">WS281x</option>\n<option value="30">SK6812 RGBW</option>\n<option value="31">TM1814</option>\n<option value="24">400kHz</option>\n<option value="50">WS2801</option>\n<option value="51">APA102</option>\n<option value="52">LPD8806</option>\n<option value="53">P9813</option>\n<option value="41">PWM White</option>\n<option value="42">PWM WWCW</option>\n<option value="43">PWM RGB</option>\n<option value="44">PWM RGBW</option>\n<option value="45">PWM RGBWC</option>\n</select>&nbsp;\nColor Order:\n<select name="CO${t}">\n<option value="0">GRB</option>\n<option value="1">RGB</option>\n<option value="2">BRG</option>\n<option value="3">RBG</option>\n<option value="4">BGR</option>\n<option value="5">GBR</option>\n</select><br>\n<span id="p0d${t}">Pin:</span> <input type="number" name="L0${t}" min="0" max="40" required style="width:35px" onchange="UI()"/>\n<span id="p1d${t}">Clock:</span> <input type="number" name="L1${t}" min="0" max="40" style="width:35px" onchange="UI()"/>\n<span id="p2d${t}"></span><input type="number" name="L2${t}" min="0" max="40" style="width:35px" onchange="UI()"/>\n<span id="p3d${t}"></span><input type="number" name="L3${t}" min="0" max="40" style="width:35px" onchange="UI()"/>\n<span id="p4d${t}"></span><input type="number" name="L4${t}" min="0" max="40" style="width:35px" onchange="UI()"/>\n<br>\n<span id="psd${t}">Start:</span> <input type="number" name="LS${t}" id="ls${t}" min="0" max="8191" value="0" required />&nbsp;\n<div id="dig${t}" style="display:inline">\nCount: <input type="number" name="LC${t}" min="0" max="2048" value="1" required oninput="UI()" /><br>\nReverse (rotated 180°): <input type="checkbox" name="CV${t}">\n</div>\n&nbsp;RGBW: <input id="ew${t}" type="checkbox" name="EW${t}"><br>\n</div>`;a.insertAdjacentHTML("beforeend",i)}-1==e&&(n[--t].remove(),--t),d.getElementById("+").style.display=t<maxST-1?"inline":"none",d.getElementById("-").style.display=t>0?"inline":"none",UI()}}function GetV() {var d=document;
 %CSS%%SCSS%</head><body onload="S()"><form
  id="form_s" name="Sf" method="post"><div class="helpB"><button type="button" 
 onclick="H()">?</button></div><button type="button" onclick="B()">Back</button>
@@ -107,16 +107,13 @@ onclick="addLEDs(-1)">-</button><br>LED Memory Usage: <span id="m0">0</span> /
 style="display:inline-block;width:100px;height:10px;border-radius:20px"></div>
 <br><div id="ledwarning" style="color:orange;display:none">
 &#9888; You might run into stability or lag issues.<br>Use less than <span 
-id="wreason">800 LEDs per pin</span> for the best experience!<br></div><div 
-id="ledwarning2" style="color:#ff4500;display:none">
-&#9888; Pin 3 has memory restrictions.<br>Use less than <span id="wreason2">500
-</span> LEDs in total to avoid memory issues!<br></div><hr style="width:260px">
-Relay pin: <input type="number" min="-1" max="40" name="RL" onchange="UI()">
- Active high <input type="checkbox" name="RM"><br>Button pin: <input 
-type="number" min="-1" max="40" name="BT" onchange="UI()"><br>IR pin: <input 
-type="number" min="-1" max="40" name="IR" onchange="UI()"><br>AUX pin: <input 
-type="number" min="-1" max="40" name="AX" onchange="UI()"><h3>Defaults</h3>
-Turn LEDs on after power up/reset: <input type="checkbox" name="BO"><br>
+id="wreason">800 LEDs per pin</span> for the best experience!<br></div><hr 
+style="width:260px">Relay pin: <input type="number" min="-1" max="40" name="RL" 
+onchange="UI()"> Active high <input type="checkbox" name="RM"><br>Button pin: 
+<input type="number" min="-1" max="40" name="BT" onchange="UI()"><br>IR pin: 
+<input type="number" min="-1" max="40" name="IR" onchange="UI()"><br>AUX pin: 
+<input type="number" min="-1" max="40" name="AX" onchange="UI()"><h3>Defaults
+</h3>Turn LEDs on after power up/reset: <input type="checkbox" name="BO"><br>
 Default brightness: <input name="CA" type="number" min="0" max="255" required>
  (0-255)<br><br>Apply preset <input name="BP" type="number" min="0" max="250" 
 required> at boot (0 uses defaults)<br>- <i>or</i> -<br>
diff --git a/wled00/ir.cpp b/wled00/ir.cpp
index 533327cb..f9153464 100644
--- a/wled00/ir.cpp
+++ b/wled00/ir.cpp
@@ -42,7 +42,7 @@ const size_t numBrightnessSteps = sizeof(brightnessSteps) / sizeof(uint8_t);
 void incBrightness()
 {
   // dumb incremental search is efficient enough for so few items
-  for (int index = 0; index < numBrightnessSteps; ++index)
+  for (uint8_t index = 0; index < numBrightnessSteps; ++index)
   {
     if (brightnessSteps[index] > bri)
     {
diff --git a/wled00/json.cpp b/wled00/json.cpp
index c1052c3f..0b3ec06e 100644
--- a/wled00/json.cpp
+++ b/wled00/json.cpp
@@ -136,7 +136,7 @@ void deserializeSegment(JsonObject elem, byte it)
           if (sz == 0 && sz > 4) break;
 
           int rgbw[] = {0,0,0,0};
-          byte cp = copyArray(icol, rgbw);
+          copyArray(icol, rgbw);
 
           if (set < 2) stop = start + 1;
           for (uint16_t i = start; i < stop; i++) {
@@ -202,8 +202,8 @@ bool deserializeState(JsonObject root)
   receiveNotifications = udpn[F("recv")] | receiveNotifications;
   bool noNotification  = udpn[F("nn")]; //send no notification just for this request
 
-  unsigned long timein = root[F("time")] | -1;
-  if (timein != -1) {
+  unsigned long timein = root[F("time")] | UINT32_MAX;
+  if (timein != UINT32_MAX) {
     if (millis() - ntpLastSyncTime > 50000000L) setTime(timein);
     if (presetsModifiedTime == 0) presetsModifiedTime = timein;
   }
diff --git a/wled00/lx_parser.cpp b/wled00/lx_parser.cpp
index 806bd74a..526f10d5 100644
--- a/wled00/lx_parser.cpp
+++ b/wled00/lx_parser.cpp
@@ -23,10 +23,9 @@ bool parseLx(int lxValue, byte rgbw[4])
     ok = true;
     float tmpBri = floor((lxValue - 200000000) / 10000); ;
     uint16_t ct = (lxValue - 200000000) - (((uint8_t)tmpBri) * 10000);
-    float temp = 0;
 
     tmpBri *= 2.55;
-    constrain(tmpBri, 0, 255);
+    tmpBri = constrain(tmpBri, 0, 255);
 
     colorKtoRGB(ct, rgbw);
     lxRed = rgbw[0]; lxGreen = rgbw[1]; lxBlue = rgbw[2];
diff --git a/wled00/src/dependencies/async-mqtt-client/AsyncMqttClient.cpp b/wled00/src/dependencies/async-mqtt-client/AsyncMqttClient.cpp
index f62e1ef4..d0c44cb6 100644
--- a/wled00/src/dependencies/async-mqtt-client/AsyncMqttClient.cpp
+++ b/wled00/src/dependencies/async-mqtt-client/AsyncMqttClient.cpp
@@ -37,10 +37,10 @@ AsyncMqttClient::AsyncMqttClient()
   _client.onPoll([](void* obj, AsyncClient* c) { (static_cast<AsyncMqttClient*>(obj))->_onPoll(c); }, this);
 
 #ifdef ESP32
-  sprintf(_generatedClientId, "esp32%06x", ESP.getEfuseMac());
+  sprintf(_generatedClientId, "esp32%06x", (uint32_t)ESP.getEfuseMac());
   _xSemaphore = xSemaphoreCreateMutex();
 #elif defined(ESP8266)
-  sprintf(_generatedClientId, "esp8266%06x", ESP.getChipId());
+  sprintf(_generatedClientId, "esp8266%06x", (uint32_t)ESP.getChipId());
 #endif
   _clientId = _generatedClientId;
 
diff --git a/wled00/src/dependencies/blynk/Blynk/BlynkProtocolDefs.h b/wled00/src/dependencies/blynk/Blynk/BlynkProtocolDefs.h
index 56e6abae..d294a626 100644
--- a/wled00/src/dependencies/blynk/Blynk/BlynkProtocolDefs.h
+++ b/wled00/src/dependencies/blynk/Blynk/BlynkProtocolDefs.h
@@ -93,7 +93,9 @@ struct BlynkHeader
 }
 BLYNK_ATTR_PACKED;
 
-#if !defined(htons) && (defined(ARDUINO) || defined(ESP8266) || defined(PARTICLE) || defined(__MBED__))
+#if defined(ESP32)
+    #include <lwip/ip_addr.h>
+#elif !defined(htons) && (defined(ARDUINO) || defined(ESP8266) || defined(PARTICLE) || defined(__MBED__))
     #if __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__
         #define htons(x) ( ((x)<<8) | (((x)>>8)&0xFF) )
         #define htonl(x) ( ((x)<<24 & 0xFF000000UL) | \
diff --git a/wled00/src/dependencies/blynk/BlynkSimpleEsp.h b/wled00/src/dependencies/blynk/BlynkSimpleEsp.h
index 6697686f..ee4d374b 100644
--- a/wled00/src/dependencies/blynk/BlynkSimpleEsp.h
+++ b/wled00/src/dependencies/blynk/BlynkSimpleEsp.h
@@ -45,8 +45,7 @@ public:
         }
         BLYNK_LOG1(BLYNK_F("Connected to WiFi"));
 
-        IPAddress myip = WiFi.localIP();
-        BLYNK_LOG_IP("IP: ", myip);
+        BLYNK_LOG_IP("IP: ", WiFi.localIP());
     }
 
     void config(const char* auth,
diff --git a/wled00/src/dependencies/dmx/ESPDMX.cpp b/wled00/src/dependencies/dmx/ESPDMX.cpp
index f3ece1c8..6ad1268e 100644
--- a/wled00/src/dependencies/dmx/ESPDMX.cpp
+++ b/wled00/src/dependencies/dmx/ESPDMX.cpp
@@ -77,10 +77,9 @@ void DMXESPSerial::write(int Channel, uint8_t value) {
 }
 
 void DMXESPSerial::end() {
-  delete dmxData;
   chanSize = 0;
   Serial1.end();
-  dmxStarted == false;
+  dmxStarted = false;
 }
 
 void DMXESPSerial::update() {
diff --git a/wled00/src/dependencies/espalexa/Espalexa.h b/wled00/src/dependencies/espalexa/Espalexa.h
index 0ec4e2e5..5e7dc837 100644
--- a/wled00/src/dependencies/espalexa/Espalexa.h
+++ b/wled00/src/dependencies/espalexa/Espalexa.h
@@ -101,8 +101,8 @@ private:
       case EspalexaDeviceType::whitespectrum: return PSTR("Color temperature light");
       case EspalexaDeviceType::color:         return PSTR("Color light");
       case EspalexaDeviceType::extendedcolor: return PSTR("Extended color light");
+      default: return "";
     }
-    return "";
   }
   
   const char* modelidString(EspalexaDeviceType t)
@@ -113,8 +113,8 @@ private:
       case EspalexaDeviceType::whitespectrum: return "LWT010";
       case EspalexaDeviceType::color:         return "LST001";
       case EspalexaDeviceType::extendedcolor: return "LCT015";
+      default: return "";
     }
-    return "";
   }
   
   void encodeLightId(uint8_t idx, char* out)
diff --git a/wled00/src/dependencies/espalexa/EspalexaDevice.cpp b/wled00/src/dependencies/espalexa/EspalexaDevice.cpp
index 8bdd780d..d7d0920f 100644
--- a/wled00/src/dependencies/espalexa/EspalexaDevice.cpp
+++ b/wled00/src/dependencies/espalexa/EspalexaDevice.cpp
@@ -112,7 +112,6 @@ uint32_t EspalexaDevice::getRGB()
 {
   if (_rgb != 0) return _rgb; //color has not changed
   byte rgb[4]{0, 0, 0, 0}; 
-  float r, g, b, w;
   
   if (_mode == EspalexaColorMode::none) return 0;
 
diff --git a/wled00/src/dependencies/json/AsyncJson-v6.h b/wled00/src/dependencies/json/AsyncJson-v6.h
index 7edab311..c1288d91 100644
--- a/wled00/src/dependencies/json/AsyncJson-v6.h
+++ b/wled00/src/dependencies/json/AsyncJson-v6.h
@@ -144,7 +144,7 @@ public:
   virtual void handleBody(AsyncWebServerRequest *request, uint8_t *data, size_t len, size_t index, size_t total) override final {
     if (_onRequest) {
       _contentLength = total;
-      if (total > 0 && request->_tempObject == NULL && total < _maxContentLength) {
+      if (total > 0 && request->_tempObject == NULL && (int)total < _maxContentLength) {
         request->_tempObject = malloc(total);
       }
       if (request->_tempObject != NULL) {
diff --git a/wled00/um_manager.cpp b/wled00/um_manager.cpp
index 51fcd0ec..4d07226e 100644
--- a/wled00/um_manager.cpp
+++ b/wled00/um_manager.cpp
@@ -32,6 +32,7 @@ bool UsermodManager::add(Usermod* um)
   if (numMods >= WLED_MAX_USERMODS || um == nullptr) return false;
   ums[numMods] = um;
   numMods++;
+  return true;
 }
 
 byte UsermodManager::getModCount() {return numMods;}
\ No newline at end of file
diff --git a/wled00/wled.cpp b/wled00/wled.cpp
index 32efed4b..12eb4169 100644
--- a/wled00/wled.cpp
+++ b/wled00/wled.cpp
@@ -136,8 +136,10 @@ void prepareHostname(char* hostname)
 //handle Ethernet connection event
 void WiFiEvent(WiFiEvent_t event)
 {
+  #ifdef WLED_USE_ETHERNET
   char hostname[25] = "wled-";
-
+  #endif
+  
   switch (event) {
 #if defined(ARDUINO_ARCH_ESP32) && defined(WLED_USE_ETHERNET)
     case SYSTEM_EVENT_ETH_START:
@@ -218,9 +220,11 @@ void WLED::loop()
     //LED settings have been saved, re-init busses
     if (busConfigs[0] != nullptr) {
       busses.removeAll();
+      uint32_t mem = 0;
       for (uint8_t i = 0; i < WLED_MAX_BUSSES; i++) {
         if (busConfigs[i] == nullptr) break;
-        busses.add(*busConfigs[i]);
+        mem += busses.memUsage(*busConfigs[i]);
+        if (mem <= MAX_LED_MEMORY) busses.add(*busConfigs[i]);
         delete busConfigs[i]; busConfigs[i] = nullptr;
       }
       strip.finalizeInit();
@@ -303,7 +307,6 @@ void WLED::setup()
   pinManager.allocatePin(1,true); // GPIO1 reserved for debug output
   #endif
 #endif
-  int heapPreAlloc = ESP.getFreeHeap();
   DEBUG_PRINT("heap ");
   DEBUG_PRINTLN(ESP.getFreeHeap());
   registerUsermods();
diff --git a/wled00/wled.h b/wled00/wled.h
index ae75b5a0..5d3b06e1 100644
--- a/wled00/wled.h
+++ b/wled00/wled.h
@@ -8,7 +8,7 @@
  */
 
 // version code in format yymmddb (b = daily build)
-#define VERSION 2103012
+#define VERSION 2103020
 
 //uncomment this if you have a "my_config.h" file you'd like to use
 //#define WLED_USE_MY_CONFIG
@@ -65,7 +65,9 @@
   #include <ESPmDNS.h>
   #include <AsyncTCP.h>
   //#include "SPIFFS.h"
-  #define CONFIG_LITTLEFS_FOR_IDF_3_2
+  #ifndef CONFIG_LITTLEFS_FOR_IDF_3_2
+    #define CONFIG_LITTLEFS_FOR_IDF_3_2
+  #endif
   #include <LITTLEFS.h>
 #endif
 
@@ -307,7 +309,7 @@ WLED_GLOBAL bool huePollingEnabled _INIT(false);           // poll hue bridge fo
 WLED_GLOBAL uint16_t huePollIntervalMs _INIT(2500);        // low values (< 1sec) may cause lag but offer quicker response
 WLED_GLOBAL char hueApiKey[47] _INIT("api");               // key token will be obtained from bridge
 WLED_GLOBAL byte huePollLightId _INIT(1);                  // ID of hue lamp to sync to. Find the ID in the hue app ("about" section)
-WLED_GLOBAL IPAddress hueIP _INIT((0, 0, 0, 0));           // IP address of the bridge
+WLED_GLOBAL IPAddress hueIP _INIT_N(((0, 0, 0, 0))); // IP address of the bridge
 WLED_GLOBAL bool hueApplyOnOff _INIT(true);
 WLED_GLOBAL bool hueApplyBri _INIT(true);
 WLED_GLOBAL bool hueApplyColor _INIT(true);
@@ -470,14 +472,14 @@ WLED_GLOBAL int16_t currentPlaylist _INIT(0);
 // realtime
 WLED_GLOBAL byte realtimeMode _INIT(REALTIME_MODE_INACTIVE);
 WLED_GLOBAL byte realtimeOverride _INIT(REALTIME_OVERRIDE_NONE);
-WLED_GLOBAL IPAddress realtimeIP _INIT((0, 0, 0, 0));
+WLED_GLOBAL IPAddress realtimeIP _INIT_N(((0, 0, 0, 0)));;
 WLED_GLOBAL unsigned long realtimeTimeout _INIT(0);
 WLED_GLOBAL uint8_t tpmPacketCount _INIT(0);
 WLED_GLOBAL uint16_t tpmPayloadFrameSize _INIT(0);
 
 // mqtt
 WLED_GLOBAL unsigned long lastMqttReconnectAttempt _INIT(0);
-WLED_GLOBAL long lastInterfaceUpdate _INIT(0);
+WLED_GLOBAL unsigned long lastInterfaceUpdate _INIT(0);
 WLED_GLOBAL byte interfaceUpdateCallMode _INIT(NOTIFIER_CALL_MODE_INIT);
 WLED_GLOBAL char mqttStatusTopic[40] _INIT("");        // this must be global because of async handlers
 
diff --git a/wled00/wled_server.cpp b/wled00/wled_server.cpp
index cae23c9d..2ae24a53 100644
--- a/wled00/wled_server.cpp
+++ b/wled00/wled_server.cpp
@@ -245,7 +245,7 @@ bool handleIfNoneMatchCacheHeader(AsyncWebServerRequest* request)
   return false;
 }
 
-bool setStaticContentCacheHeaders(AsyncWebServerResponse *response)
+void setStaticContentCacheHeaders(AsyncWebServerResponse *response)
 {
   response->addHeader(F("Cache-Control"),"max-age=2592000");
   response->addHeader(F("ETag"), String(VERSION));
diff --git a/wled00/xml.cpp b/wled00/xml.cpp
index 483a5deb..7f2f2705 100644
--- a/wled00/xml.cpp
+++ b/wled00/xml.cpp
@@ -294,15 +294,13 @@ void getSettingsJS(byte subPage, char* dest)
     #endif
 
     // set limit for LED count
-    oappend(SET_F("d.LCmax="));
+    oappend(SET_F("LCmax="));
     oappendi(MAX_LEDS);
     oappend(";");
-    #ifdef ESP8266
-    // set limit for DMA LED count
-    oappend(SET_F("d.LDmax="));
-    oappendi(MAX_LEDS_DMA);
+    // set limit for LED memory
+    oappend(SET_F("bmax="));
+    oappendi(MAX_LED_MEMORY);
     oappend(";");
-    #endif
 
     sappend('v',SET_F("LC"),ledCount);
 
@@ -333,7 +331,7 @@ void getSettingsJS(byte subPage, char* dest)
     sappend('v',SET_F("LA"),strip.milliampsPerLed);
     if (strip.currentMilliamps)
     {
-      sappends('m',SET_F("(\"pow\")[0]"),"");
+      sappends('m',SET_F("(\"pow\")[0]"),(char*)"");
       olen -= 2; //delete ";
       oappendi(strip.currentMilliamps);
       oappend(SET_F("mA\";"));