added readDataSerial and reorganized Client1+2 examples

examples/sPSN_Client1/sPSN_Client1.ino

@@ -76,11 +76,11 @@ void loop() {
   if(valueChanged(currentValue, THRESHOLD)){
     itoa(currentValue, payload, 10);                    //wandle Wert in ASCII-Zeichen
     //Alternativ: sprintf(payload, "%d", currentValue); //wandle Wert in ASCII-Zeichen
-    newData = true;                                     // neue Daten zum Senden
+    newData = true;                                     //Flag: neue Daten zum Senden
   }
-  if(timeElapsed(SEND_DELAY) && newData){
+  if(timeElapsed(SEND_DELAY) && newData){     //Sende neue Daten wenn Mindestwaretzeit abgelaufen
     psnClient.publish(topicPublish, payload); //bereite Topic und Nutzdaten zum senden vor
-    newData = false;                          //Daten wurden gesendet
+    newData = false;                          //Flag: keine neuen Daten vorhanden
   }
 }
 

examples/sPSN_Client2/sPSN_Client2.ino

@@ -76,11 +76,11 @@ void loop() {
     ledState = !ledState;                               //Invertiere zu sendenden Wert "LED-Zustand"
     itoa(ledState, payload, 10);                        //wandle Wert in ASCII-Zeichen
     //Alternativ: sprintf(payload, "%d", currentValue); //wandle Wert in ASCII-Zeichen 
-    newData = true;                                     // neue Daten zum Senden
+    newData = true;                                     //Flag: neue Daten zum Senden
   }
-  if(timeElapsed(SEND_DELAY) && newData){
+  if(timeElapsed(SEND_DELAY) && newData){     //Sende neue Daten wenn Mindestwaretzeit abgelaufen
     psnClient.publish(topicPublish, payload); //bereite Topic und Nutzdaten zum senden vor
-    newData = false;                          //Daten wurden gesendet
+    newData = false;                          //Flag: keine neuen Daten vorhanden
   }
 }
 

src/didacticNet.cpp

@@ -11,41 +11,60 @@
 //**************************************************************************
 //LITTLE HELPERS ;-)
 //**************************************************************************
-int edgeDetected(bool currentState){
-  static bool lastState = false;
-  int edge = 0;
+int edgeDetected(bool edCurrentState){
+  static bool edLastState = false;
+  int edEdge = 0;
 
-  if(currentState && !lastState){
-    edge = RISING;
+  if(edCurrentState && !edLastState){
+    edEdge = RISING;
   }
-  if(!currentState && lastState){
-    edge = FALLING;
+  if(!edCurrentState && edLastState){
+    edEdge = FALLING;
   }
-  lastState = currentState;
-  return edge;
+  edLastState = edCurrentState;
+  return edEdge;
 }
 
-bool valueChanged(int value, int threshold){
-  static int lastValue = 0;
+bool valueChanged(int teValue, int teThreshold){
+  static int vcLastValue = 0;
 
-  if(abs(value-lastValue) > threshold){
-    lastValue = value;
+  if(abs(teValue-vcLastValue) > teThreshold){
+    vcLastValue = teValue;
     return true;
   }
   return false;
 }
 
-bool timeElapsed(long delayTime){
-  static long lastTime = 0L;
+bool timeElapsed(long teDelayTime){
+  static long teLastTime = 0L;
   long currentTime = millis();
 
-  if(lastTime + (delayTime-1) < currentTime){
-    lastTime = currentTime;
+  if(teLastTime + (teDelayTime-1) < currentTime){
+    teLastTime = currentTime;
     return true;
   }
   return false;
 }
 
+int readSerialData(Stream& rsStream, char* rsDataArray, char rsEndSign) {
+  static int rsCounter = 0;
+
+  if (rsStream.available()) {
+    char charBuffer = rsStream.read();
+    rsDataArray[rsCounter] = charBuffer;
+
+    if (charBuffer == rsEndSign) {
+      rsDataArray[rsCounter] = '\0';
+      int nrOfChars = rsCounter-1;
+      rsCounter = 0;
+      return nrOfChars; 
+    } else {
+      rsCounter++;
+    }
+  }
+  return 0;
+}
+
 
 //**************************************************************************
 //ROOT

src/didacticNet.h

@@ -43,6 +43,7 @@
 int  edgeDetected(bool);
 bool valueChanged(int, int);
 bool timeElapsed(long);
+int readSerialData(Stream&, char*, char);
 
 class didacticPSNet
 {