Added save interval to protect SD card

jordancrubin · Jul 23, 2022 · 6607a7f · 6607a7f
1 parent 7d114b5
commit 6607a7f
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Showing 2 changed files with 17 additions and 15 deletions.
diff --git a/src/Watermeter.cpp b/src/Watermeter.cpp
@@ -5,27 +5,28 @@
   can be adjusted as parameters in the instance creation.
   https://www.youtube.com/c/jordanrubin6502
   2020 - 2022 Jordan Rubin.
-  */
+*/
 
 #include <Arduino.h> // Required for Platform.io
 #include <Watermeter.h>
 #include <SD.h>
 #include <FS.h>
 
 int meterSignal;
-bool gallon;
+bool gallon = 0;
 bool update;
 long lastDebounce = 0;    // Holds last debounce
 long debounceDelay;       // Between re-polling
+long lastUpdate = 0;
 double meter = 0;
 float increment;
+int saveint;    
 bool useSDcard;
 void IRAM_ATTR respondInterrupt();
 
 //CONSTRUCTOR -----------------------------------------------------------
-
-//WATERMETER::WATERMETER(int signalGPIOpin, bool useInternalPullups,char measure, long dbounce ,bool useSD, float incr)
-WATERMETER::WATERMETER(int signalGPIOpin, bool useInternalPullups,char measure, long dbounce ,bool useSD, float incr)
+//WATERMETER::WATERMETER(int signalGPIOpin, bool useInternalPullups,char measure, long dbounce ,bool useSD, float incr, int saveInterval)
+WATERMETER::WATERMETER(int signalGPIOpin, bool useInternalPullups,char measure, long dbounce ,bool useSD, float incr, int saveInterval)
 {
   //----------------- initialize initial parameters  
     if (useInternalPullups){
@@ -35,10 +36,10 @@ WATERMETER::WATERMETER(int signalGPIOpin, bool useInternalPullups,char measure,
       pinMode(signalGPIOpin, INPUT);
     }
     if (measure == 'g'){gallon = 1;}
-    else {gallon = 0;}
     attachInterrupt(signalGPIOpin, respondInterrupt, FALLING);
     meterSignal = signalGPIOpin;
     increment = incr;
+    saveint = saveInterval * 1000;
     debounceDelay = dbounce;
     useSDcard = useSD;
 }
@@ -47,13 +48,14 @@ WATERMETER::WATERMETER(int signalGPIOpin, bool useInternalPullups,char measure,
 // FUNCTION - [updated] - [Checks and responds to the update flag--------------]
 bool WATERMETER::updated(void){
   if (update){
-    writeFile();
+    if ((millis() - lastUpdate) > saveint) { 
+      writeFile();
+      lastUpdate = millis(); 
+    }
     update = 0;
-    return 1;    
-  }
-  else {
-    return 0;
+    return 1;
   }
+  return 0;
 } 
 // ----------------------------------------------------------------------------]
 
@@ -157,7 +159,7 @@ void WATERMETER::setDebounce(int value){
 // FUNCTION - [setMeter] - [Sets the meter from the physical display-----------]
 void WATERMETER::setMeter(double value){
   meter = value;
-  update = 1;
+  writeFile();
 } 
 // ----------------------------------------------------------------------------]
 

diff --git a/src/Watermeter.h b/src/Watermeter.h
@@ -15,9 +15,9 @@
 class WATERMETER
 {
   ////////////// user-accessible "public" interface
-  //WATERMETER(SignalGPIOpin,useInternalPullupResistor,measure[g|l],dbouncedelay,useSD,increment)
+  //WATERMETER(SignalGPIOpin,useInternalPullupResistor,measure[g|l],dbouncedelay,useSD,increment,saveinterval)
   public:
-    WATERMETER(int,bool,char,long,bool,float);
+    WATERMETER(int,bool,char,long,bool,float,int);
     bool updated(void);
     int getDebounce(void);
     const char* initFilesys(void);
@@ -27,7 +27,7 @@ class WATERMETER
     void setMeter(double);
     void setDebounce(int);
 
-//  ////////////// library-accessible "private" interface
+  //////////////// library-accessible "private" interface
   private:
     int value;
     bool readFile(void);