diff --git a/src/cupcarbon/CupCarbonVersion.java b/src/cupcarbon/CupCarbonVersion.java
index d84212a0..20d41958 100755
--- a/src/cupcarbon/CupCarbonVersion.java
+++ b/src/cupcarbon/CupCarbonVersion.java
@@ -1,7 +1,7 @@
 package cupcarbon;
 
 public final class CupCarbonVersion {
-	public static final String VERSION = "IoT 5.1";
+	public static final String VERSION = "IoT 5.1.1 beta (Parthenope)";
 	public static final String YEAR = "2021";
 	public static final int UPDATE = 31;
 }
diff --git a/src/iotlab/HTTPClient.java b/src/iotlab/HTTPClient.java
new file mode 100644
index 00000000..3a433a33
--- /dev/null
+++ b/src/iotlab/HTTPClient.java
@@ -0,0 +1,60 @@
+package iotlab;
+
+import java.io.BufferedReader;
+import java.io.InputStreamReader;
+import java.io.OutputStream;
+import java.net.HttpURLConnection;
+import java.net.URL;
+
+public class Client 
+{
+	
+	/**
+	 * ThingsBoars simple client
+	 * user micheledicapua@gmail.com
+	 * Sulla pagine Thingsboard aprire la dashboard IoT Lab
+	 * @param data
+	 */
+	public static void sendInCloud(float data)
+	{
+		URL url = null;
+		HttpURLConnection con = null;
+		try
+		{
+			url = new URL ("http://demo.thingsboard.io/api/v1/ZJifi2d7hOZWhhPz3FJq/telemetry");
+			con = (HttpURLConnection)url.openConnection();
+			con.setRequestMethod("POST");
+			con.setRequestProperty("Content-Type", "application/json; utf-8");
+			con.setRequestProperty("Accept", "application/json");
+			con.setDoOutput(true);
+			//temperature è la chiave (KEY) del widget (lettura dati) di TensorBoard
+			String jsonInputString = "{\"temperature\":"+data+"}";
+			
+			OutputStream os = con.getOutputStream(); 
+			byte[] input = jsonInputString.getBytes("utf-8");
+			os.write(input, 0, input.length);
+		}
+		catch (Exception e)
+		{
+			e.printStackTrace();
+		}
+		
+		try
+		{
+			BufferedReader br = new BufferedReader (new InputStreamReader(con.getInputStream(), "utf-8"));
+			StringBuilder response = new StringBuilder();
+			String responseLine    = null;
+			while ((responseLine = br.readLine()) != null) 
+			{
+				response.append(responseLine.trim());
+			}
+			System.out.println("Response="+response.toString());
+			System.out.println("Status="+con.getResponseCode());			
+		}
+		catch (Exception e)
+		{
+			e.printStackTrace();
+		}
+		
+	}	
+}
\ No newline at end of file
diff --git a/src/senscript/SenScript.java b/src/senscript/SenScript.java
index 4bec3afc..081cb6c5 100755
--- a/src/senscript/SenScript.java
+++ b/src/senscript/SenScript.java
@@ -205,11 +205,18 @@ public boolean isNumeric(String arg) {
 		}
 	}
 	
+	/* BUG FIXED ISSUE ON GITHUB #20
 	public void variablesToValues(String [] args) {
 		for(int i=0; i<args.length; i++)
 			if(args[i].charAt(0)=='$')
 				args[i] = variables.get(args[i].substring(1));
-	}	
+	}
+	*/
+	
+	public void variablesToValues(String [] args) {
+		for(int i=0; i<args.length; i++)
+			args[i] = getVariableValue(args[i]);
+		}
 
 	public void setIndex(int index) {
 		this.index = index;
diff --git a/src/senscript/SenScriptAddCommand.java b/src/senscript/SenScriptAddCommand.java
index c78194f5..e13bcbab 100755
--- a/src/senscript/SenScriptAddCommand.java
+++ b/src/senscript/SenScriptAddCommand.java
@@ -451,6 +451,10 @@ public static void addCommand(String instStr, SensorNode sensorNode, SenScript s
 			command = new Command_CPRINT(sensorNode, inst);
 		}
 		
+		if (inst[0].toLowerCase().startsWith("#")) {
+			//SKIP comment
+		}
+		
 		//-------
 		// This part must be here (at the end). All new commands must be added before (above)
 		
diff --git a/src/senscript/SenScriptCondition_LESS.java b/src/senscript/SenScriptCondition_LESS.java
index 3bcfed6f..a6492379 100755
--- a/src/senscript/SenScriptCondition_LESS.java
+++ b/src/senscript/SenScriptCondition_LESS.java
@@ -26,11 +26,9 @@ public boolean evaluate() {
 			v2 = Double.valueOf(sensor.getScript().getVariableValue(arg2));
 		} 
 		catch(Exception e) {
-			System.err.println("[CupCarbon ERROR] (S"+sensor.getId()+"): Condition < ("+arg1+" is not a number)");
+			System.err.println("[CupCarbon ERROR] (S"+sensor.getId()+"): Condition < ("+arg2+" is not a number)");
 		}
 		
 		return  (v1 < v2);
-	}
-
-	
+	}	
 }
diff --git a/src/senscript_functions/Functions.java b/src/senscript_functions/Functions.java
index 67ed11b1..21038afe 100755
--- a/src/senscript_functions/Functions.java
+++ b/src/senscript_functions/Functions.java
@@ -204,4 +204,35 @@ public static String myf(String [] args) {
 		return valToReturn;
 	}
 	
+	
+	/**
+	 * Demo function to integrate Thingsboard sensor
+	 * @param args
+	 * @return
+	 */
+	public static String cloud(String [] args) 
+	{
+		String valToReturn = "";
+		
+		System.out.println("cloud() ARGS lenght: "+args.length);
+		
+		try
+		{
+			float f = Float.parseFloat(args[0]); //DATA VALUE SENT TO THINGSBOARD
+			
+			System.out.println((new java.util.Date()) +" - Called cloud() function params "+f);
+			
+			System.out.println("Sending data in cloud...");		
+			
+			iotlab.Client.sendInCloud(f);	
+			
+		}
+		catch (Exception e)
+		{
+			System.out.println("cloud() - Wrong parameters passed. err="+e.getMessage());
+			System.out.println("args[0]="+args[0]);
+		}
+					
+		return valToReturn;
+	}
 }
diff --git a/src/senscript_functions/ScriptFunctions.java b/src/senscript_functions/ScriptFunctions.java
index 49e7ad33..bc710c0c 100755
--- a/src/senscript_functions/ScriptFunctions.java
+++ b/src/senscript_functions/ScriptFunctions.java
@@ -76,7 +76,11 @@ public class ScriptFunctions {
 				e.printStackTrace();
 			}
 		}
-				
+		
+		if(function.equals("cloud")) {
+			return new String [] {Functions.cloud(args), "0.0", "0.0"};
+		}
+		
 		return new String [] {"[SCRIPT] FUNCTION ERROR: Unknown function!","0.0", "0.0"};
 	}