phase start time calc

hot_fermentation.ino

@@ -59,13 +59,13 @@ double Kp = 2, Ki = 0.5, Kd = 0.25;
 PID myPID(&Input, &Output, &Setpoint, Kp, Ki, Kd, DIRECT);
 
 // Timing variables
-unsigned long phaseStartTime;
+long phaseStartTime;
-unsigned long totalStartTime;
+long totalStartTime;
-unsigned long ssrLastSwitchTime;
+long ssrLastSwitchTime;
-unsigned long totalElapsedTime;
+long totalElapsedTime;
-unsigned long totalProcessTime;
+long totalProcessTime;
-unsigned long finishTime = 0;
+long finishTime = 0;
-unsigned long currentTime = 0;
+long currentTime = 0;
 bool isComplete = false;
 const int ssrSwitchInterval = 1000;  // SSR switching interval in milliseconds
 
@@ -81,41 +81,45 @@ void setup() {
 }
 
 void loop() {
-  enc1.tick();  // Mandatory encoder update function
+  enc1.tick();
 
   if (inSelectionMode) {
-    handleProfileSelection();  // Handle profile selection mode
+    handleProfileSelection();
   } else {
-    currentTime = millis();
+    handleExecution();
-    totalElapsedTime = (currentTime - totalStartTime) / 1000; // Total elapsed time in seconds
-
-    getPhaseAndTemperature(totalElapsedTime);
-
-    Input = thermocouple.readCelsius();
-    if (isnan(Input)) {
-      Input = 0;
-    }
-    myPID.Compute();
-
-    // Switch SSR based on PID output and interval control
-    if (currentTime - ssrLastSwitchTime > ssrSwitchInterval) {
-      digitalWrite(ssrPin, Output > 0.5 ? HIGH : LOW);
-      ssrLastSwitchTime = currentTime;
-    }
-
-    if (isComplete && currentPhase >= activeProfile.numPhases && !finishTime) {
-      finishTime = currentTime;
-    }
-
-    // Display all phases and highlight the current one
-    printPhases();
-
-    oled.update();
-
-    delay(1000); // Update every second
   }
 }
 
+void handleExecution() {
+  currentTime = millis();
+  totalElapsedTime = (currentTime - totalStartTime) / 1000; // Total elapsed time in seconds
+
+  getPhaseAndTemperature();
+
+  Input = thermocouple.readCelsius();
+  if (isnan(Input)) {
+    Input = 0;
+  }
+  myPID.Compute();
+
+  // Switch SSR based on PID output and interval control
+  if (currentTime - ssrLastSwitchTime > ssrSwitchInterval) {
+    digitalWrite(ssrPin, Output > 0.5 ? HIGH : LOW);
+    ssrLastSwitchTime = currentTime;
+  }
+
+  if (isComplete && currentPhase >= activeProfile.numPhases && !finishTime) {
+    finishTime = currentTime;
+  }
+
+  // Display all phases and highlight the current one
+  printPhases();
+
+  oled.update();
+
+  delay(1000); // Update every second
+}
+
 void handleProfileSelection() {
 
   bool click = enc1.isClick();
@@ -175,8 +179,8 @@ void calculateTotalTime() {
   }
 }
 
-void getPhaseAndTemperature(unsigned long elapsedSeconds) {
+void getPhaseAndTemperature() {
-  unsigned long accumulatedTime = 0;
+  long accumulatedTime = 0;
 
   for (int i = 0; i < activeProfile.numPhases; i++) {
     int phaseDuration = activeProfile.phases[i].duration * 60;
@@ -188,11 +192,12 @@ void getPhaseAndTemperature(unsigned long elapsedSeconds) {
       int tempDiff = abs(targetTemp - previousTemp);
       int transitionDuration = tempDiff * 60 * activeProfile.transitionMinutesPerDegree;
 
-      if (elapsedSeconds < accumulatedTime + transitionDuration) {
+      if (totalElapsedTime < accumulatedTime + transitionDuration) {
         isInTransition = true;
         currentPhase = i - 1;  // Keep currentPhase as the previous phase
-        int timeInTransition = elapsedSeconds - accumulatedTime;
+        int timeInTransition = totalElapsedTime - accumulatedTime;
         Setpoint = previousTemp + (double)timeInTransition / (60 * activeProfile.transitionMinutesPerDegree) * (targetTemp > previousTemp ? 1 : -1);
+        phaseStartTime = totalStartTime + accumulatedTime * 1000; // Set phase start time
         return;
       }
 
@@ -200,10 +205,11 @@ void getPhaseAndTemperature(unsigned long elapsedSeconds) {
     }
 
     // Check if we're within the current phase
-    if (elapsedSeconds < accumulatedTime + phaseDuration) {
+    if (totalElapsedTime < accumulatedTime + phaseDuration) {
       isInTransition = false;
       currentPhase = i;
       Setpoint = activeProfile.phases[i].temperature;
+      phaseStartTime = totalStartTime + accumulatedTime * 1000; // Set phase start time
       return;
     }
 
@@ -215,8 +221,10 @@ void getPhaseAndTemperature(unsigned long elapsedSeconds) {
   Setpoint = 45;  // Default to 45°C after completion
   isInTransition = false;
   isComplete = true;  // Mark the process as complete
+  phaseStartTime = totalStartTime + accumulatedTime * 1000;  // Set phase start time to the end
 }
 
+
 void printPhases() {
   oled.clear();
 
@@ -251,7 +259,7 @@ void printPhases() {
       oled.invertText(true);  // Invert text for the current phase
 
       oled.setCursor(0, i + 2);  // Set cursor to the row corresponding to the phase
-      unsigned long timeRemaining = (activeProfile.phases[i].duration * 60) - ((currentTime - phaseStartTime) / 1000);
+      long timeRemaining = (activeProfile.phases[i].duration * 60) - ((currentTime - phaseStartTime) / 1000);
       formatTime(timeRemaining, timeBuffer);
       oled.print(i + 1);
       oled.print(". ");