diff --git a/src/classes/IoTItem.cpp b/src/classes/IoTItem.cpp
index e8afe357..f75b86fc 100644
--- a/src/classes/IoTItem.cpp
+++ b/src/classes/IoTItem.cpp
@@ -122,7 +122,8 @@ String IoTItem::getRoundValue() {
         
         char buf[15];
         sprintf(buf, ("%1." + (String)_round + "f").c_str(), value.valD);
-        return (String)buf;
+        value.valS = (String)buf;
+        return value.valS;
     } else {
         return (String)value.valD;
     }
diff --git a/src/classes/IoTScenario.cpp b/src/classes/IoTScenario.cpp
index 8173ffb9..1643751c 100644
--- a/src/classes/IoTScenario.cpp
+++ b/src/classes/IoTScenario.cpp
@@ -112,6 +112,7 @@ class VariableExprAST : public ExprAST {
             // if (Item->value.isDecimal)
             //   Serial.printf("Call from  VariableExprAST: %s = %f\n", Name.c_str(), Item->value.valD);
             // else Serial.printf("Call from  VariableExprAST: %s = %s\n", Name.c_str(), Item->value.valS.c_str());
+            Item->getRoundValue();
             return &(Item->value);
         }
 
@@ -222,15 +223,17 @@ class BinaryExprAST : public ExprAST {
         }
 
         if (!lhs->isDecimal || !rhs->isDecimal) {
-            if (lhs->isDecimal)
-                lhsStr = (String)lhs->valD;
-            else
-                lhsStr = lhs->valS;
+            // if (lhs->isDecimal)
+            //     lhsStr = (String)lhs->valD;
+            // else
+            //     lhsStr = lhs->valS;
             
-            if (rhs->isDecimal)
-                rhsStr = (String)rhs->valD;
-            else
-                rhsStr = rhs->valS;
+            // if (rhs->isDecimal)
+            //     rhsStr = (String)rhs->valD;
+            // else
+            //     rhsStr = rhs->valS;
+            lhsStr = lhs->valS;
+            rhsStr = rhs->valS;
             
             switch (Op) {
                 case tok_equal:
diff --git a/src/modules/sensors/UART/Uart.cpp b/src/modules/sensors/UART/Uart.cpp
index a6d5040e..c75b7db1 100644
--- a/src/modules/sensors/UART/Uart.cpp
+++ b/src/modules/sensors/UART/Uart.cpp
@@ -169,13 +169,15 @@ class UART : public IoTItem {
     IoTValue execute(String command, std::vector<IoTValue> &param) {
         if (command == "println") { 
             if (param.size() == 1) {
-                if (param[0].isDecimal) uartPrintln((String)param[0].valD);
-                else uartPrintln(param[0].valS);
+                //if (param[0].isDecimal) uartPrintln((String)param[0].valD);
+                //else uartPrintln(param[0].valS);
+                uartPrintln(param[0].valS);
             }
         } else if (command == "print") { 
             if (param.size() == 1) {
-                if (param[0].isDecimal) uartPrint((String)param[0].valD);
-                else uartPrint(param[0].valS);
+                //if (param[0].isDecimal) uartPrint((String)param[0].valD);
+                //else uartPrint(param[0].valS);
+                uartPrintln(param[0].valS);
             }
         } else if (command == "printHex") {
             if (param.size() == 1) {
@@ -184,10 +186,11 @@ class UART : public IoTItem {
         } else if (command == "printFFF") {
             if (param.size() == 2) {
                 String strToUart = "";
-                if (param[0].isDecimal) 
-                    strToUart = param[0].valD;  
-                else 
-                    strToUart = param[0].valS;
+                // if (param[0].isDecimal) 
+                //     strToUart = param[0].valD;  
+                // else 
+                //     strToUart = param[0].valS;
+                strToUart = param[0].valS;
 
                 if (param[1].valD) 
                     uartPrintFFF("\"" + strToUart + "\"");