diff --git a/.idea/intellij-latte/xmlSources/Latte.dtd b/.idea/intellij-latte/xmlSources/Latte.dtd
index ab659787..0cf3a95a 100644
--- a/.idea/intellij-latte/xmlSources/Latte.dtd
+++ b/.idea/intellij-latte/xmlSources/Latte.dtd
@@ -8,7 +8,7 @@
 
 <!ELEMENT tag (arguments)?>
 <!ATTLIST tag name CDATA #REQUIRED>
-<!ATTLIST tag type (PAIR|UNPAIRED|UNPAIRED_ATTR|ATTR_ONLY) #REQUIRED>
+<!ATTLIST tag type (PAIR|UNPAIRED|UNPAIRED_ATTR|ATTR_ONLY|AUTO_EMPTY) #REQUIRED>
 <!ATTLIST tag allowedFilters (true|false) #IMPLIED>
 <!ATTLIST tag arguments CDATA #IMPLIED>
 <!ATTLIST tag deprecatedMessage CDATA #IMPLIED>
diff --git a/.idea/intellij-latte/xmlSources/Latte.xml b/.idea/intellij-latte/xmlSources/Latte.xml
index 29502ee9..0bfceaf8 100644
--- a/.idea/intellij-latte/xmlSources/Latte.xml
+++ b/.idea/intellij-latte/xmlSources/Latte.xml
@@ -12,7 +12,7 @@
 				<argument name="expression" types="PHP_EXPRESSION" validType="string" required="true" />
 			</arguments>
 		</tag>
-		<tag name="block" type="PAIR" allowedFilters="true" multiLine="true">
+		<tag name="block" type="AUTO_EMPTY" allowedFilters="true" multiLine="true">
 			<arguments>
 				<argument name="name" types="PHP_IDENTIFIER,VARIABLE,PHP_EXPRESSION" validType="string" required="true" />
 			</arguments>
@@ -182,6 +182,11 @@
 		</tag>
 		<tag name="try" type="PAIR" />
 		<tag name="rollback" type="UNPAIRED" />
+		<tag name="tag" type="ATTR_ONLY">
+			<arguments>
+				<argument name="expression" types="PHP_EXPRESSION" required="true" validType="string" repeatable="true" />
+			</arguments>
+		</tag>
 		<tag name="ifchanged" type="PAIR">
 			<arguments>
 				<argument name="expression" types="PHP_EXPRESSION" required="true" repeatable="true" />
@@ -197,6 +202,7 @@
 				<argument name="variable" types="VARIABLE_DEFINITION_EXPRESSION" required="true" repeatable="true" />
 			</arguments>
 		</tag>
+		<tag name="trace" type="UNPAIRED" />
 		<tag name="varPrint" type="UNPAIRED" arguments="all" />
 		<tag name="varType" type="UNPAIRED">
 			<arguments>
@@ -209,6 +215,7 @@
 				<argument name="condition" types="PHP_CONDITION" validType="bool" required="true" />
 			</arguments>
 		</tag>
+		<tag name="iterateWhile" type="PAIR" multiLine="true" />
 		<tag name="embed" type="PAIR" multiLine="true">
 			<arguments>
 				<argument name="file" types="BLOCK_USAGE,PHP_IDENTIFIER,VARIABLE,PHP_EXPRESSION" validType="string" required="true" />
@@ -220,25 +227,25 @@
 		<tag name="truncate" type="UNPAIRED" arguments="expression" deprecatedMessage="Tag {? ...} is deprecated in Latte 2.4. For variable definitions use {var ...} or {php ...} in other cases." />
 	</tags>
 	<filters>
-		<filter name="truncate" arguments=":(length, append = '…')" description="shortens the length preserving whole words" insertColons=":" />
-		<filter name="substr" arguments=":(offset [, length])" description="returns part of the string" insertColons=":" />
-		<filter name="trim" arguments=":(charset = mezery)" description="strips whitespace or other characters from the beginning and end of the string" />
+		<filter name="truncate" arguments=":($length, $append = '…')" description="shortens the length preserving whole words" insertColons=":" />
+		<filter name="substr" arguments=":($offset [, $length])" description="returns part of the string" insertColons=":" />
+		<filter name="trim" arguments=":($charset = mezery)" description="strips whitespace or other characters from the beginning and end of the string" />
 		<filter name="stripHtml" arguments="" description="removes HTML tags and converts HTML entities to text" />
 		<filter name="strip" arguments="" description="removes whitespace" />
-		<filter name="indent" arguments=":(level = 1, char = '\t')" description="indents the text from left with number of tabs" />
-		<filter name="replace" arguments=":(search, replace = '')" description="replaces all occurrences of the search string with the replacement" insertColons=":" />
-		<filter name="replaceRE" arguments=":(pattern, replace = '')" description="replaces all occurrences according to regular expression" insertColons=":" />
-		<filter name="padLeft" arguments=":(length, pad = ' ')" description="completes the string to given length from left" insertColons=":" />
-		<filter name="padRight" arguments=":(length, pad = ' ')" description="completes the string to given length from right" insertColons=":" />
-		<filter name="repeat" arguments=":(count)" description="repeats the string" insertColons=":" />
-		<filter name="implode" arguments=":(glue = '')" description="joins an array to a string" />
+		<filter name="indent" arguments=":($level = 1, $char = '\t')" description="indents the text from left with number of tabs" />
+		<filter name="replace" arguments=":($search, $replace = '')" description="replaces all occurrences of the search string with the replacement" insertColons=":" />
+		<filter name="replaceRE" arguments=":($pattern, $replace = '')" description="replaces all occurrences according to regular expression" insertColons=":" />
+		<filter name="padLeft" arguments=":($length, $pad = ' ')" description="completes the string to given length from left" insertColons=":" />
+		<filter name="padRight" arguments=":($length, $pad = ' ')" description="completes the string to given length from right" insertColons=":" />
+		<filter name="repeat" arguments=":($count)" description="repeats the string" insertColons=":" />
+		<filter name="implode" arguments=":($glue = '')" description="joins an array to a string" />
 		<filter name="webalize" description="adjusts the UTF-8 string to the shape used in the URL" />
 		<filter name="breaklines" description="inserts HTML line breaks before all newlines" />
 		<filter name="reverse" description="reverse an UTF-8 string or array" />
 		<filter name="length" description="returns length of a string or array" />
 		<filter name="sort" description="simply sorts array" />
 		<filter name="reverse" description="array sorted in reverse order (used with |sort)" />
-		<filter name="batch" arguments=":(array, length [, item])" description="returns length of a string or array" insertColons="::" />
+		<filter name="batch" arguments=":($array, $length [, $item])" description="returns length of a string or array" insertColons="::" />
 
 		<filter name="clamp" description="returns value clamped to the inclusive range of min and max." insertColons="::" />
 
@@ -247,18 +254,37 @@
 		<filter name="firstUpper" description="makes the first letter upper case" />
 		<filter name="capitalize" description="lower case, the first letter of each word upper case" />
 
-		<filter name="date" arguments=":(format)" description="formats date" insertColons=":" />
-		<filter name="number" arguments=":(decimals = 0, decPoint = '.', thousandsSep = ',')" description="format number" />
-		<filter name="bytes" arguments=":(precision = 2)" description="formats size in bytes" />
-		<filter name="dataStream" arguments=":(mimetype = detect)" description="Data URI protocol conversion" />
+		<filter name="date" arguments=":($format)" description="formats date" insertColons=":" />
+		<filter name="number" arguments=":($decimals = 0, $decPoint = '.', $thousandsSep = ',')" description="format number" />
+		<filter name="bytes" arguments=":($precision = 2)" description="formats size in bytes" />
+		<filter name="dataStream" arguments=":($mimetype = 'detect')" description="Data URI protocol conversion" />
 
 		<filter name="noescape" description="prints a variable without escaping" />
 		<filter name="escapeurl" description="escapes parameter in URL" />
 
 		<filter name="nocheck" description="prevents automatic URL sanitization" />
 		<filter name="checkurl" description="sanitizes string for use inside href attribute" />
+
+		<filter name="query" description="generates a query string in the URL" />
+		<filter name="ceil" arguments=":(int $precision = 0)" description="rounds a number up to a given precision" />
+		<filter name="explode" arguments=":(string $separator = '')" description="splits a string by the given delimiter" />
+		<filter name="first" description="returns first element of array or character of string" />
+		<filter name="floor" arguments=":(int $precision = 0)" description="rounds a number down to a given precision" />
+		<filter name="join" arguments=":(string $glue = '')" description="joins an array to a string" />
+		<filter name="last" description="returns last element of array or character of string" />
+		<filter name="random" description="returns random element of array or character of string" />
+		<filter name="round" arguments=":(int $precision = 0)" description="rounds a number to a given precision" />
+		<filter name="slice" arguments=":(int $start, int $length = null, bool $preserveKeys = false)" description="extracts a slice of an array or a string" insertColons=":" />
+		<filter name="spaceless" description="removes whitespace" />
+		<filter name="split" arguments=":(string $separator = '')" description="splits a string by the given delimiter" />
 	</filters>
 	<functions>
 		<function name="clamp" returnType="int|float" arguments="(int|float $value, int|float $min, int|float $max)" description="clamps value to the inclusive range of min and max" />
+		<function name="divisibleBy" returnType="bool" arguments="(int $value)" description="checks if a variable is divisible by a number" />
+		<function name="even" returnType="bool" arguments="(int $value)" description="checks if the given number is even" />
+		<function name="first" returnType="mixed" arguments="(string|array $value)" description="returns first element of array or character of string" />
+		<function name="last" returnType="mixed" arguments="(string|array $value)" description="returns last element of array or character of string" />
+		<function name="odd" returnType="bool" arguments="(int $value)" description="checks if the given number is odd" />
+		<function name="slice" returnType="string|array" arguments="(string|array $value, int $start, int $length = null, bool $preserveKeys = false)" description="extracts a slice of an array or a string" />
 	</functions>
 </latte>
\ No newline at end of file
diff --git a/.idea/workspace.xml b/.idea/workspace.xml
index 87e2b003..04de3220 100644
--- a/.idea/workspace.xml
+++ b/.idea/workspace.xml
@@ -2,24 +2,12 @@
 <project version="4">
   <component name="ChangeListManager">
     <list default="true" id="e9a274b0-0d4d-43ea-a41b-8ecd3fedf3b5" name="Default Changelist" comment="">
-      <change beforePath="$PROJECT_DIR$/.idea/Pletacka-website.iml" beforeDir="false" afterPath="$PROJECT_DIR$/.idea/Pletacka-website.iml" afterDir="false" />
-      <change beforePath="$PROJECT_DIR$/.idea/inspectionProfiles/Project_Default.xml" beforeDir="false" afterPath="$PROJECT_DIR$/.idea/inspectionProfiles/Project_Default.xml" afterDir="false" />
-      <change beforePath="$PROJECT_DIR$/.idea/php.xml" beforeDir="false" afterPath="$PROJECT_DIR$/.idea/php.xml" afterDir="false" />
+      <change beforePath="$PROJECT_DIR$/.idea/intellij-latte/xmlSources/Latte.dtd" beforeDir="false" afterPath="$PROJECT_DIR$/.idea/intellij-latte/xmlSources/Latte.dtd" afterDir="false" />
+      <change beforePath="$PROJECT_DIR$/.idea/intellij-latte/xmlSources/Latte.xml" beforeDir="false" afterPath="$PROJECT_DIR$/.idea/intellij-latte/xmlSources/Latte.xml" afterDir="false" />
       <change beforePath="$PROJECT_DIR$/.idea/workspace.xml" beforeDir="false" afterPath="$PROJECT_DIR$/.idea/workspace.xml" afterDir="false" />
-      <change beforePath="$PROJECT_DIR$/composer.json" beforeDir="false" afterPath="$PROJECT_DIR$/composer.json" afterDir="false" />
-      <change beforePath="$PROJECT_DIR$/db/A17-2020-10-6.sql" beforeDir="false" />
-      <change beforePath="$PROJECT_DIR$/db/Pletacka-IoT-2020-09-12.sql" beforeDir="false" />
-      <change beforePath="$PROJECT_DIR$/db/Pletacka-IoT-2020-10-03.sql" beforeDir="false" />
-      <change beforePath="$PROJECT_DIR$/db/Pletacka-IoT-2020-10-29.sql" beforeDir="false" />
-      <change beforePath="$PROJECT_DIR$/db/Pletacka-IoT-2020-11-07-only-sensors-data.sql" beforeDir="false" />
-      <change beforePath="$PROJECT_DIR$/db/Pletacka-IoT-2020-12-12.sql" beforeDir="false" />
-      <change beforePath="$PROJECT_DIR$/db/Pletacka-IoT-2020-12-19.sql" beforeDir="false" />
-      <change beforePath="$PROJECT_DIR$/db/Pletacka-IoT-2020-12-28.sql" beforeDir="false" />
-      <change beforePath="$PROJECT_DIR$/db/Pletacka-IoT-2021-01-08.sql" beforeDir="false" />
-      <change beforePath="$PROJECT_DIR$/db/Pletacka-IoT-2021-01-15.sql" beforeDir="false" />
-      <change beforePath="$PROJECT_DIR$/db/Pletacka-IoT-2021-01-23.sql" beforeDir="false" />
-      <change beforePath="$PROJECT_DIR$/db/Pletacka-IoT-2021-02-07.sql" beforeDir="false" />
-      <change beforePath="$PROJECT_DIR$/db/Pletacka-IoT-2021-02-09.sql" beforeDir="false" />
+      <change beforePath="$PROJECT_DIR$/app/CoreModule/Component/PletackaChartControl/PletackaChartControl.php" beforeDir="false" afterPath="$PROJECT_DIR$/app/CoreModule/Component/PletackaChartControl/PletackaChartControl.php" afterDir="false" />
+      <change beforePath="$PROJECT_DIR$/app/CoreModule/Model/ThisSensorManager.php" beforeDir="false" afterPath="$PROJECT_DIR$/app/CoreModule/Model/ThisSensorManager.php" afterDir="false" />
+      <change beforePath="$PROJECT_DIR$/app/CoreModule/Presenters/ConnectPresenter.php" beforeDir="false" afterPath="$PROJECT_DIR$/app/CoreModule/Presenters/ConnectPresenter.php" afterDir="false" />
     </list>
     <option name="SHOW_DIALOG" value="false" />
     <option name="HIGHLIGHT_CONFLICTS" value="true" />
@@ -41,23 +29,34 @@
     <option name="RECENT_GIT_ROOT_PATH" value="$PROJECT_DIR$" />
   </component>
   <component name="HighlightingSettingsPerFile">
-    <setting file="file://$PROJECT_DIR$/vendor/nette/database/src/Database/Table/Selection.php" root0="FORCE_HIGHLIGHTING" root1="FORCE_HIGHLIGHTING" />
     <setting file="file://$PROJECT_DIR$/app/Bootstrap.php" root0="FORCE_HIGHLIGHTING" root1="FORCE_HIGHLIGHTING" />
     <setting file="file://$PROJECT_DIR$/app/CoreModule/Component/StatusBubbblesControl/StatusBubblesControl.php" root0="FORCE_HIGHLIGHTING" root1="FORCE_HIGHLIGHTING" />
     <setting file="file://$PROJECT_DIR$/app/CoreModule/Model/ThisSensorManager.php" root0="FORCE_HIGHLIGHTING" root1="FORCE_HIGHLIGHTING" />
-    <setting file="file://$PROJECT_DIR$/../local/www/index.php" root0="FORCE_HIGHLIGHTING" root1="FORCE_HIGHLIGHTING" />
+    <setting file="file://$PROJECT_DIR$/app/Router/RouterFactory.php" root0="FORCE_HIGHLIGHTING" root1="FORCE_HIGHLIGHTING" />
+    <setting file="file://$PROJECT_DIR$/vendor/jakubandrysek/chart/src/Serie/DateSerie.php" root0="FORCE_HIGHLIGHTING" root1="FORCE_HIGHLIGHTING" />
     <setting file="file://$PROJECT_DIR$/composer.json" root0="FORCE_HIGHLIGHTING" />
+    <setting file="file://$PROJECT_DIR$/app/CoreModule/Model/DatabaseSelectionManager.php" root0="FORCE_HIGHLIGHTING" root1="FORCE_HIGHLIGHTING" />
+    <setting file="file://$PROJECT_DIR$/codealike.json" root0="FORCE_HIGHLIGHTING" />
+    <setting file="file://$PROJECT_DIR$/app/CoreModule/Model/SetupManager.php" root0="FORCE_HIGHLIGHTING" root1="FORCE_HIGHLIGHTING" />
+    <setting file="file://$PROJECT_DIR$/vendor/nette/database/src/Database/Table/Selection.php" root0="FORCE_HIGHLIGHTING" root1="FORCE_HIGHLIGHTING" />
+    <setting file="file://$PROJECT_DIR$/temp/cache/nette.configurator/Container_713334fccf.php" root0="FORCE_HIGHLIGHTING" root1="FORCE_HIGHLIGHTING" />
+    <setting file="file://$PROJECT_DIR$/app/CoreModule/Presenters/ConnectPresenter.php" root0="FORCE_HIGHLIGHTING" root1="FORCE_HIGHLIGHTING" />
+    <setting file="file://$PROJECT_DIR$/vendor/jakubandrysek/chart/src/DateChart.php" root0="FORCE_HIGHLIGHTING" root1="FORCE_HIGHLIGHTING" />
+    <setting file="file://$PROJECT_DIR$/app/CoreModule/Presenters/HomepagePresenter.php" root0="FORCE_HIGHLIGHTING" root1="FORCE_HIGHLIGHTING" />
+    <setting file="file://$PROJECT_DIR$/../local/adminer.php" root0="FORCE_HIGHLIGHTING" root1="FORCE_HIGHLIGHTING" />
+    <setting file="file://$PROJECT_DIR$/app/CoreModule/Presenters/SetupPresenter.php" root0="FORCE_HIGHLIGHTING" root1="FORCE_HIGHLIGHTING" />
     <setting file="file://$PROJECT_DIR$/app/config/common.neon" root0="FORCE_HIGHLIGHTING" />
+    <setting file="file://$PROJECT_DIR$/vendor/nette/application/src/Application/Request.php" root0="FORCE_HIGHLIGHTING" root1="FORCE_HIGHLIGHTING" />
     <setting file="file://$PROJECT_DIR$/app/config/local.neon" root0="FORCE_HIGHLIGHTING" />
-    <setting file="file://$PROJECT_DIR$/codealike.json" root0="FORCE_HIGHLIGHTING" />
   </component>
-  <component name="PhpDebugGeneral" xdebug_debug_port="9003" listening_started="true">
+  <component name="PhpDebugGeneral" xdebug_debug_port="9003">
     <xdebug_debug_ports port="9003" />
     <xdebug_debug_ports port="9003" />
   </component>
   <component name="PhpServers">
     <servers>
       <server host="localhost" id="3a8446f9-89f8-42fa-8fa4-1e0faee8cdb9" name="Server" />
+      <server host="pletac.localhost" id="913b3c74-fbf2-453b-a578-ecc0b0d77d42" name="pletac.localhost" />
     </servers>
   </component>
   <component name="PhpWebServerValidation" path_to_validation_script="$PROJECT_DIR$" selected_validation_type="LOCAL" web_path_to_validation_script="http://localhost/Pletacka-website/" />
@@ -145,7 +144,7 @@
       <recent name="$PROJECT_DIR$/tests/Test1" />
     </key>
   </component>
-  <component name="RunManager" selected="Shell Script.ClearCacheNette">
+  <component name="RunManager" selected="PHP Web Page.Unnamed">
     <configuration name="Unnamed" type="PhpWebAppRunConfigurationType" factoryName="PHP Web Application" nameIsGenerated="true" browser="53e2f627-b1a7-4dfa-bfa7-5b83cc034776" server_name="Server" start_url="http://localhost/Pletacka-website/">
       <method v="2" />
     </configuration>
@@ -193,6 +192,9 @@
       <workItem from="1612706213440" duration="2052000" />
       <workItem from="1612797833358" duration="23024000" />
       <workItem from="1612871846117" duration="11685000" />
+      <workItem from="1639504321255" duration="2724000" />
+      <workItem from="1639748256132" duration="2246000" />
+      <workItem from="1639846865920" duration="7426000" />
     </task>
     <task id="LOCAL-00001" summary="Finished update">
       <created>1609201367814</created>
@@ -374,6 +376,46 @@
           <line>282</line>
           <option name="timeStamp" value="7" />
         </line-breakpoint>
+        <line-breakpoint enabled="true" type="php">
+          <url>file://$PROJECT_DIR$/app/CoreModule/Component/PletackaChartControl/PletackaChartControl.php</url>
+          <line>276</line>
+          <option name="timeStamp" value="8" />
+        </line-breakpoint>
+        <line-breakpoint enabled="true" type="php">
+          <url>file://$PROJECT_DIR$/app/CoreModule/Component/PletackaChartControl/PletackaChartControl.php</url>
+          <line>40</line>
+          <option name="timeStamp" value="9" />
+        </line-breakpoint>
+        <line-breakpoint enabled="true" type="php">
+          <url>file://$PROJECT_DIR$/app/CoreModule/Presenters/HomepagePresenter.php</url>
+          <line>42</line>
+          <option name="timeStamp" value="10" />
+        </line-breakpoint>
+        <line-breakpoint enabled="true" type="php">
+          <url>file://$PROJECT_DIR$/app/CoreModule/Component/ThisChartControl/ThisChartControl.php</url>
+          <line>289</line>
+          <option name="timeStamp" value="11" />
+        </line-breakpoint>
+        <line-breakpoint enabled="true" type="php">
+          <url>file://$PROJECT_DIR$/app/CoreModule/Component/ThisChartControl/ThisChartControl.php</url>
+          <line>186</line>
+          <option name="timeStamp" value="12" />
+        </line-breakpoint>
+        <line-breakpoint enabled="true" type="php">
+          <url>file://$PROJECT_DIR$/app/CoreModule/Model/ThisSensorManager.php</url>
+          <line>88</line>
+          <option name="timeStamp" value="13" />
+        </line-breakpoint>
+        <line-breakpoint enabled="true" type="php">
+          <url>file://$PROJECT_DIR$/app/CoreModule/Model/ThisSensorManager.php</url>
+          <line>82</line>
+          <option name="timeStamp" value="14" />
+        </line-breakpoint>
+        <line-breakpoint enabled="true" type="php">
+          <url>file://$PROJECT_DIR$/app/CoreModule/Model/ThisSensorManager.php</url>
+          <line>97</line>
+          <option name="timeStamp" value="15" />
+        </line-breakpoint>
       </breakpoints>
     </breakpoint-manager>
   </component>
diff --git a/app/CoreModule/Model/ThisSensorManager.php b/app/CoreModule/Model/ThisSensorManager.php
index d25deda2..5221482d 100755
--- a/app/CoreModule/Model/ThisSensorManager.php
+++ b/app/CoreModule/Model/ThisSensorManager.php
@@ -86,13 +86,16 @@ public function getAllEvents($sNumber, $from="2000-01-01 00:00:00" , $to="2100-0
 
 	public function sensorHasData($sNumber): bool
 	{
-		return boolval($this->database->table("A".$sNumber)->fetch());
+		return boolval($this->database->table("A".$sNumber)->limit(1)->fetch());
 	}
 
 	public function getPreviousEvent($sNumber, $events)
     {
-        $previous = array_key_first($events)-1;
-        return $this->database->table("A".$sNumber)->where("id =?",$previous)->fetch();
+        if(!$events) {
+			return false;
+        }
+		$previous = array_key_first($events)-1;
+        return $this->database->table("A".$sNumber)->where("id =?",$previous)->limit(1)->fetch();
     }