diff --git a/build-flags/build_flags_esp32-wifi b/build-flags/build_flags_esp32-wifi
index d61532f..704b8e3 100644
--- a/build-flags/build_flags_esp32-wifi
+++ b/build-flags/build_flags_esp32-wifi
@@ -1,13 +1,15 @@
 -DWIFI_ENABLE
-#-DDMX_DISABLE
+-DDMX_DISABLE
+# - exeption in DMX.update/begin
 #-DSPILED_DISABLE
 #-DAC_DISABLE
-#-DSYSLOG_ENABLE - udp errors
 -DMODBUS_DISABLE
+#-DMBUS_DISABLE
 -DCOUNTER_DISABLE
+#-DSYSLOG_ENABLE - udp errors
 -DOTA
-#-DMCP23017
+-DMCP23017
 -DMODBUS_TX_PIN=13
 #-DARTNET_ENABLE - udp rx errors ((
--DUSE_1W_PIN=16
--DW5500_CS_PIN=15
+#-DUSE_1W_PIN=16
+#-DW5500_CS_PIN=15
diff --git a/build-flags/build_flags_mega2560-slim-5100 b/build-flags/build_flags_mega2560-slim-5100
deleted file mode 100644
index 0848369..0000000
--- a/build-flags/build_flags_mega2560-slim-5100
+++ /dev/null
@@ -1,2 +0,0 @@
--DMODBUS_DIMMER_PARAM=SERIAL_8E1
--DAVR_DMXOUT_PIN=18
diff --git a/build-flags/build_flags_mega2560slim-5100 b/build-flags/build_flags_mega2560slim-5100
new file mode 100644
index 0000000..ce56958
--- /dev/null
+++ b/build-flags/build_flags_mega2560slim-5100
@@ -0,0 +1,14 @@
+
+#-DMODBUS_DIMMER_PARAM=SERIAL_8E1
+#-DAVR_DMXOUT_PIN=18
+-DDMX_DISABLE
+-DMODBUS_DISABLE
+-DMBUS_DISABLE
+#-DOWIRE_DISABLE
+-DDHT_DISABLE
+-DCOUNTER_DISABLE
+-DNO_HOMIE
+-DCSSHDC_DISABLE
+-DSPILED_DISABLE
+-DAC_DISABLE
+-DSYSLOG_ENABLE
diff --git a/compiled/esp32-wifi/firmware.bin b/compiled/esp32-wifi/firmware.bin
index 1897345..409ae37 100644
Binary files a/compiled/esp32-wifi/firmware.bin and b/compiled/esp32-wifi/firmware.bin differ
diff --git a/lighthub/item.cpp b/lighthub/item.cpp
index 99b5461..059d1fe 100644
--- a/lighthub/item.cpp
+++ b/lighthub/item.cpp
@@ -907,7 +907,7 @@ bool send = isNotRetainingStatus() ;
   if (!suffixCode && defaultSuffixCode)
       suffixCode = defaultSuffixCode;
 
-
+    yield();
     debugSerial<<F("RAM=")<<freeRam()<<F(" Item=")<<itemArr->name<<F(" Sub=")<<subItem<<F(" Suff=")<<suffixCode<<F(" Cmd=")<<cmd<<F(" Par=(");
     if (!itemArr) return -1;
 
diff --git a/lighthub/main.cpp b/lighthub/main.cpp
index 6870f08..197dcbc 100644
--- a/lighthub/main.cpp
+++ b/lighthub/main.cpp
@@ -199,6 +199,7 @@ while (configLocked)
           if (isNotRetainingStatus())  pollingLoop();
           thermoLoop();
           inputLoop();
+          yield();
 }
 
 //Stoping the channels
@@ -209,7 +210,7 @@ while (items && item)
     {
         Item it(item->name);
         if (it.isValid()) it.Stop();
-
+        yield();
 
     }
    item = item->next;
@@ -246,7 +247,7 @@ void mqttCallback(char *topic, byte *payload, unsigned int length) {
     payload[length] = 0;
     int fr = freeRam();
     if (fr < 250) {
-        debugSerial<<F("OOM!");
+        errorSerial<<F("OutOfMemory!")<<endl;
         return;
     }
     LED.flash(ledBLUE);
@@ -558,6 +559,7 @@ void onMQTTConnect(){
                   strncat_P(topic,format_P,sizeof(topic));
                   mqttClient.publish(topic,format,true);
                   }
+              yield();
               item = item->next;
           }  //if
           //strncpy_P(topic, outprefix, sizeof(topic));
@@ -737,6 +739,7 @@ void onInitialStateInitLAN() {
                     delay(500);
                     wifi_connection_wait -= 500;
                     debugSerial<<".";
+                    yield();
                 }
                 wifiInitialized = true; //???
             }
@@ -973,6 +976,7 @@ configLocked++;
                 SetAddr(item->name, addr);
                 owAdd(addr);
             }
+            yield();
             item = item->next;
         }
     }
@@ -1013,6 +1017,7 @@ configLocked++;
                             break;
                     } //switch
                 } //isValid
+                yield();
                 item = item->next;
             }  //if
         pollingItem = items->child;
@@ -1762,29 +1767,34 @@ void loop_main() {
 
   #if defined(M5STACK)
    // Initialize the M5Stack object
+   yield();
    M5.update();
   #endif
 
     wdt_res();
+    yield();
     cmdPoll();
     if (lanLoop() > HAVE_IP_ADDRESS) {
         mqttClient.loop();
 
         #if defined(OTA)
+        yield();
         ArduinoOTA.poll();
         #endif
 
 #ifdef _artnet
+        yield();
         if (artnet) artnet->read();  ///hung
 #endif
     }
 
 #ifdef _owire
+    yield();
     if (owReady && owArr) owLoop();
 #endif
 
 #ifdef _dmxin
-    //    unsigned long lastpacket = DMXSerial.noDataSince();
+    yield();
     DMXCheck();
 #endif
 
@@ -1793,14 +1803,16 @@ void loop_main() {
         if (isNotRetainingStatus()) pollingLoop();
 //        #endif
 //#ifdef _owire
+        yield();
         thermoLoop();
 //#endif
     }
 
-
+    yield();
     inputLoop();
 
 #if defined (_espdmx)
+    yield();
     dmxout.update();
 #endif
 
@@ -1815,16 +1827,19 @@ void owIdle(void) {
     return;
 
 #ifdef _dmxin
+    yield();
     DMXCheck();
 #endif
 
 #if defined (_espdmx)
+    yield();
     dmxout.update();
 #endif
 }
 void ethernetIdle(void){
 ethernetIdleCount++;
     wdt_res();
+    yield();
     inputLoop();
 ethernetIdleCount--;
 };
@@ -1832,10 +1847,12 @@ ethernetIdleCount--;
 void modbusIdle(void) {
     wdt_res();
     if (lanLoop() > 1) {
+        yield();
         mqttClient.loop();
 #ifdef _artnet
         if (artnet) artnet->read();
 #endif
+        yield();
         inputLoop();
     }
 
@@ -1861,6 +1878,7 @@ configLocked++;
                 Input in(input);
                 in.Poll(CHECK_INPUT);
             }
+            yield();
             input = input->next;
         }
         nextInputCheck = millis() + INTERVAL_CHECK_INPUT;
@@ -1873,6 +1891,7 @@ configLocked++;
                 Input in(input);
                 in.Poll(CHECK_SENSOR);
             }
+            yield();
             input = input->next;
         }
         nextSensorCheck = millis() + INTERVAL_CHECK_SENSOR;
@@ -1889,6 +1908,7 @@ configLocked++;
                 Input in(input);
                 in.setup();
             }
+            yield();
             input = input->next;
         }
 configLocked--;
@@ -1906,6 +1926,7 @@ if (items) {
             if (it.isValid()) {
                it.Poll(POLLING_FAST);
             } //isValid
+            yield();
             item = item->next;
         }  //if
 }
@@ -1925,6 +1946,7 @@ configLocked--;
                 }
             }//if
             if (!pollingItem) return; //Config was re-readed
+            yield();
             pollingItem = pollingItem->next;
             if (!pollingItem) {
                 pollingItem = items->child;
diff --git a/platformio.ini b/platformio.ini
index 7b35721..8900c55 100644
--- a/platformio.ini
+++ b/platformio.ini
@@ -37,7 +37,7 @@ default_envs =
 ;    esp8266-wifi
 
 ; ESP-32
-    esp32-wifi
+;    esp32-wifi
 
 ; M5Stack core (ESP32 based)
 ;    m5stack
@@ -170,13 +170,15 @@ lib_deps =
 [env:esp32-wifi]
 platform = espressif32
 framework = arduino
+monitor_filters = esp32_exception_decoder
+build_type = debug
 ;board = pico32
 board = esp32-evb
 upload_speed = 115200
 build_flags = !python get_build_flags.py esp32-wifi
 lib_ignore =
     ;COMMENT/UNCOMMENT next line for software 1-wire driver on/off
-    DS2482_OneWire   
+    ;DS2482_OneWire
     DmxSimple
     DMXSerial
     DmxDue
@@ -329,6 +331,7 @@ lib_deps =
 platform = atmelavr
 board = megaatmega2560
 ;upload_port = net:192.168.88.31:23
+upload_port = net:192.168.88.2:23000
 framework = arduino
 build_flags = !python get_build_flags.py mega2560slim-5100
 lib_ignore =