diff --git a/code/components/jomjol_flowcontroll/ClassFlow.cpp b/code/components/jomjol_flowcontroll/ClassFlow.cpp
index 0de7428d..858c9524 100644
--- a/code/components/jomjol_flowcontroll/ClassFlow.cpp
+++ b/code/components/jomjol_flowcontroll/ClassFlow.cpp
@@ -67,11 +67,6 @@ string ClassFlow::getHTMLSingleStep(string host){
 	return "";
 }
 
-string ClassFlow::getReadout()
-{
-	return string();
-}
-
 std::string ClassFlow::GetParameterName(std::string _input)
 {
     string _param;
diff --git a/code/components/jomjol_flowcontroll/ClassFlow.h b/code/components/jomjol_flowcontroll/ClassFlow.h
index 52f5c72c..9c826c11 100644
--- a/code/components/jomjol_flowcontroll/ClassFlow.h
+++ b/code/components/jomjol_flowcontroll/ClassFlow.h
@@ -46,7 +46,6 @@ public:
 	virtual bool ReadParameter(FILE* pfile, string &aktparamgraph);
 	virtual bool doFlow(string time);
 	virtual string getHTMLSingleStep(string host);
-	virtual string getReadout();
 	virtual string name(){return "ClassFlow";};
 
 };
diff --git a/code/components/jomjol_flowcontroll/ClassFlowControll.cpp b/code/components/jomjol_flowcontroll/ClassFlowControll.cpp
index b4b7bb18..1e2cd751 100644
--- a/code/components/jomjol_flowcontroll/ClassFlowControll.cpp
+++ b/code/components/jomjol_flowcontroll/ClassFlowControll.cpp
@@ -468,22 +468,7 @@ string ClassFlowControll::getReadout(bool _rawvalue = false, bool _noerror = fal
     if (flowpostprocessing)
         return flowpostprocessing->getReadoutParam(_rawvalue, _noerror, _number);
 
-    string zw = "";
-    string result = "";
-
-    for (int i = 0; i < FlowControll.size(); ++i)
-    {
-        zw = FlowControll[i]->getReadout();
-        if (zw.length() > 0)
-        {
-            if (result.length() == 0)
-                result = zw;
-            else
-                result = result + "\t" + zw;
-        }
-    }
-
-    return result;
+    return std::string("");
 }
 
 
diff --git a/code/platformio.ini b/code/platformio.ini
index 38012347..c174baa2 100644
--- a/code/platformio.ini
+++ b/code/platformio.ini
@@ -19,7 +19,8 @@
 
 [common:esp32-idf]
     extends = common:idf
-    platform = platformio/espressif32 @ 6.5.0
+    ; PlatformIO releases, see https://github.com/platformio/platform-espressif32/releases
+    platform = platformio/espressif32 @ 6.7.0
     framework = espidf
     lib_deps = 
         ${common:idf.lib_deps}