diff --git a/data/set.device.json.gz b/data/set.device.json.gz
index c0686cbf..0d278d22 100644
Binary files a/data/set.device.json.gz and b/data/set.device.json.gz differ
diff --git a/data_ungzip/set.device.json b/data_ungzip/set.device.json
index 175ff26b..ee17e69b 100644
--- a/data_ungzip/set.device.json
+++ b/data_ungzip/set.device.json
@@ -60,6 +60,10 @@
             "type": "text",
             "title": "{{warning2}}"
         },
+        {
+            "type": "text",
+            "title": "{{warning3}}"
+        },
         {
             "type": "hr"
         },
diff --git a/doc/calculator.xlsx b/doc/calculator.xlsx
index 6fd98cf2..edff5c8e 100644
Binary files a/doc/calculator.xlsx and b/doc/calculator.xlsx differ
diff --git a/include/Class/LineParsing.h b/include/Class/LineParsing.h
index 99a807f1..3edad798 100644
--- a/include/Class/LineParsing.h
+++ b/include/Class/LineParsing.h
@@ -1,12 +1,12 @@
 #pragma once
 
 #include <Arduino.h>
-
+#include "ItemsList.h"
 #include "Global.h"
 #include "Utils/JsonUtils.h"
 
 class LineParsing {
-   protected:
+protected:
     String _key;
     String _file;
     String _page;
@@ -26,29 +26,33 @@ class LineParsing {
     String _val;
     String _index;
 
-   public:
+    int pinErrors;
+
+public:
     LineParsing() :
 
-                    _key{""},
-                    _file{""},
-                    _page{""},
-                    _descr{""},
-                    _order{""},
-                    _addr{""},
-                    _reg{""},
-                    _pin{""},
-                    _map{""},
-                    _c{""},
-                    _inv{""},
-                    _state{""},
-                    _db{""},
-                    _type{""},
-                    _int{""},
-                    _cnt{""},
-                    _val{""},
-                    _index{""}
+        _key{ "" },
+        _file{ "" },
+        _page{ "" },
+        _descr{ "" },
+        _order{ "" },
+        _addr{ "" },
+        _reg{ "" },
+        _pin{ "" },
+        _map{ "" },
+        _c{ "" },
+        _inv{ "" },
+        _state{ "" },
+        _db{ "" },
+        _type{ "" },
+        _int{ "" },
+        _cnt{ "" },
+        _val{ "" },
+        _index{ "" },
 
-                    {};
+        pinErrors{ 0 }
+
+    {};
 
     void update() {
         //String order = sCmd.order();
@@ -106,17 +110,19 @@ class LineParsing {
             }
         }
 
+        if (!isPinExist(_pin.toInt()) || !isDigitStr(_pin)) {
+            pinErrors++;
+            _pin = "";
+        }
+
         _page.replace("#", " ");
-
         _descr.replace("#", " ");
-
         _descr.replace("%ver%", String(FIRMWARE_VERSION));
         _descr.replace("%name%", jsonReadStr(configSetupJson, F("name")));
 
         createWidget(_descr, _page, _order, _file, _key);
     }
 
-    //jsonWriteStr(configOptionJson, _key + "_pin", _pin);
 
     String gkey() {
         return _key;
@@ -171,6 +177,15 @@ class LineParsing {
     }
 
 
+    int getPinErrors() {
+        return pinErrors;
+    }
+
+    void clearErrors() {
+        pinErrors = 0;
+    }
+
+
     void clear() {
         _key = "";
         _file = "";
@@ -205,7 +220,7 @@ class LineParsing {
                 return;
             }
 
-            if(filename.indexOf("chart") != -1) jsonWriteStr(buf, "maxCount", _cnt);
+            if (filename.indexOf("chart") != -1) jsonWriteStr(buf, "maxCount", _cnt);
 
             jsonWriteStr(buf, "page", page);
             jsonWriteStr(buf, "order", order);
diff --git a/include/ItemsList.h b/include/ItemsList.h
index 54089580..2961d9e1 100644
--- a/include/ItemsList.h
+++ b/include/ItemsList.h
@@ -12,4 +12,5 @@ extern void delChoosingItems();
 extern void delAllItems();
 extern uint8_t getNewElementNumber(String file);
 extern uint8_t getFreePinAll();
+extern bool isPinExist(unsigned int num);
 extern uint8_t getFreePinAnalog();
diff --git a/src/Init.cpp b/src/Init.cpp
index fc0fa3ae..cf1c4248 100644
--- a/src/Init.cpp
+++ b/src/Init.cpp
@@ -2,6 +2,7 @@
 #include "BufferExecute.h"
 #include "Cmd.h"
 #include "Global.h"
+#include "Class/LineParsing.h"
 #include "items/vLogging.h"
 #include "items/vImpulsOut.h"
 #include "items/vButtonOut.h"
@@ -20,6 +21,7 @@ void loadConfig() {
 
     jsonWriteStr(configSetupJson, "warning1", "");
     jsonWriteStr(configSetupJson, "warning2", "");
+    jsonWriteStr(configSetupJson, "warning3", "");
 
     jsonWriteStr(configSetupJson, "chipID", chipId);
     jsonWriteInt(configSetupJson, "firmware_version", FIRMWARE_VERSION);
@@ -76,13 +78,13 @@ void deviceInit() {
     inOutput_KeyList = "";
     inOutput_EnterCounter = -1;
     //======clear pwm params=======
-    #ifdef PwmOutEnable
+#ifdef PwmOutEnable
     if (myPwmOut != nullptr) {
         myPwmOut->clear();
     }
     pwmOut_KeyList = "";
     pwmOut_EnterCounter = -1;
-    #endif
+#endif
     //===================================
     if (myCountDown != nullptr) {
         myCountDown->clear();
@@ -97,8 +99,20 @@ void deviceInit() {
 #else
     removeFile(String("layout.txt"));
 #endif
+    
+    myLineParsing.clearErrors();
 
     fileCmdExecute(String(DEVICE_CONFIG_FILE));
+
+    int errors = myLineParsing.getPinErrors();
+
+    if (errors != 0) {
+        jsonWriteStr(configSetupJson, F("warning3"), F("<div style='margin-top:10px;margin-bottom:10px;'><font color='black'><p style='border: 1px solid #DCDCDC; border-radius: 3px; background-color: #ffc7c7; padding: 10px;'>Обнаружен неверный номер пина</p></font></div>"));
+    }
+    else {
+        jsonWriteStr(configSetupJson, F("warning3"), "");
+    }
+
     //outcoming_date();
 }
 //-------------------------------сценарии-----------------------------------------------------
diff --git a/src/ItemsList.cpp b/src/ItemsList.cpp
index 361b0538..aa83a65d 100644
--- a/src/ItemsList.cpp
+++ b/src/ItemsList.cpp
@@ -143,6 +143,16 @@ uint8_t getFreePinAll() {
     }
 }
 
+bool isPinExist(unsigned int num) {
+    bool ret = false;
+    unsigned int pins[] = { 0, 1, 2, 3, 4, 5, 9, 10, 12, 13, 14, 15, 16 };
+    uint8_t array_sz = sizeof(pins) / sizeof(pins[0]);
+    for (uint8_t i = 0; i < array_sz; i++) {
+        if (pins[i] == num) ret = true;
+    }
+    return ret;
+}
+
 uint8_t getFreePinAnalog() {
 #ifdef ESP8266
     return 0;