transitions between phases!

hot_fermentation.ino

@@ -23,22 +23,27 @@ struct Phase {
 
 struct Profile {
   const char* name;
+  int transitionMinutesPerDegree;
   Phase phases[6]; // Maximum of 6 phases per profile
   int numPhases;
 };
 
 // Profiles definition
 Profile profiles[] = {
-  {"Test", {{49, 1}, {51, 1}}, 2},
-  {"Пшеница", {{47, 40}, {55, 40}, {65, 20}, {72, 20}, {85, 20}}, 5},
-  {"Veggies Sous Vide", {{85, 120}}, 1},
-  {"Фитаза/Протеаза", {{47, 120}, {53, 120}, {65, 150}, {72, 60}, {90, 105}, {50, 60}}, 6},
+  {"Test", 0, {{49, 1}, {51, 1}}, 2},
+  {"Пшеница", 1, {{47, 40}, {55, 40}, {65, 20}, {72, 20}, {85, 20}}, 5},
+  {"Veggies Sous Vide", 0, {{85, 120}}, 1},
+  {"Фитаза/Протеаза", 2, {{47, 120}, {53, 120}, {65, 150}, {72, 60}, {90, 105}, {50, 60}}, 6},
 };
 
 // Select active profile (constant at this point)
 const int activeProfileIndex = 0;  // Index of the active profile, starting from 0
 Profile activeProfile = profiles[activeProfileIndex];
 
+// Global variables for current phase, setpoint, and transition state
+int currentPhase;
+bool isInTransition = false;
+
 // PID Control variables
 double Setpoint, Input, Output;
 double Kp = 2, Ki = 0.5, Kd = 0.25;
@@ -67,9 +72,10 @@ void setup() {
   oled.update();
   oled.setScale(1);     // Set text scale back to 1 for more detailed information
 
+  calculateTotalTime();
+
   // Begin the first phase
   phaseStartTime = totalStartTime = millis();
-  Setpoint = activeProfile.phases[0].temperature;
   myPID.SetMode(AUTOMATIC);
   myPID.SetOutputLimits(0, 1);  // SSR is either ON or OFF
   digitalWrite(ssrPin, HIGH); // Start with heater on
@@ -77,10 +83,12 @@ void setup() {
 }
 
 void loop() {
-  static int currentPhase = 0;
-  Input = (int) thermocouple.readCelsius(); // Cast to integer for display and control
   unsigned long currentTime = millis();
+  totalElapsedTime = (currentTime - totalStartTime) / 1000; // Total elapsed time in seconds
 
+  getPhaseAndTemperature(totalElapsedTime);
+
+  Input = (int) thermocouple.readCelsius(); // Cast to integer for display and control
   myPID.Compute();
 
   // Switch SSR based on PID output and interval control
@@ -89,25 +97,8 @@ void loop() {
     ssrLastSwitchTime = currentTime;
   }
 
-  // Display time calculations
-  totalElapsedTime = (currentTime - totalStartTime) / 1000; // Total elapsed time in seconds
-  totalProcessTime = 0;
-  for (int i = 0; i < activeProfile.numPhases; i++) {
-    totalProcessTime += activeProfile.phases[i].duration * 60;
-  }
-
-  // Check if the phase duration is complete
-  if (!isComplete && (unsigned long)((currentTime - phaseStartTime) / 1000) >= (unsigned long)activeProfile.phases[currentPhase].duration * 60) {
-    currentPhase++;
-    if (currentPhase >= activeProfile.numPhases) {
-      isComplete = true;
+  if (isComplete && currentPhase >= activeProfile.numPhases) {
     finishTime = currentTime;
-      Setpoint = 45; // Set target temperature to 45°C
-      digitalWrite(ssrPin, LOW); // Turn off the heater
-    } else {
-      phaseStartTime = currentTime; // Reset the start time for the new phase
-      Setpoint = activeProfile.phases[currentPhase].temperature;
-    }
   }
 
   // Display all phases and highlight the current one
@@ -118,6 +109,60 @@ void loop() {
   delay(1000); // Update every second
 }
 
+void calculateTotalTime() {
+ // Calculate total process time, including transitions
+  totalProcessTime = 0;
+  for (int i = 0; i < activeProfile.numPhases; i++) {
+    totalProcessTime += activeProfile.phases[i].duration * 60;
+    if (i < activeProfile.numPhases - 1) {
+      int tempDiff = abs(activeProfile.phases[i + 1].temperature - activeProfile.phases[i].temperature);
+      totalProcessTime += tempDiff * 60 * activeProfile.transitionMinutesPerDegree;
+    }
+  }
+}
+
+void getPhaseAndTemperature(unsigned long elapsedSeconds) {
+  unsigned long accumulatedTime = 0;
+
+  for (int i = 0; i < activeProfile.numPhases; i++) {
+    int phaseDuration = activeProfile.phases[i].duration * 60;
+
+    // Check for transition
+    if (i > 0) {
+      int previousTemp = activeProfile.phases[i - 1].temperature;
+      int targetTemp = activeProfile.phases[i].temperature;
+      int tempDiff = abs(targetTemp - previousTemp);
+      int transitionDuration = tempDiff * 60 * activeProfile.transitionMinutesPerDegree;
+
+      if (elapsedSeconds < accumulatedTime + transitionDuration) {
+        isInTransition = true;
+        currentPhase = i;
+        int timeInTransition = elapsedSeconds - accumulatedTime;
+        Setpoint = previousTemp + ((targetTemp > previousTemp ? (double)timeInTransition / 60 : -(double)timeInTransition / 60) / (double)activeProfile.transitionMinutesPerDegree);
+        return;
+      }
+
+      accumulatedTime += transitionDuration;
+    }
+
+    // Check if we're within the current phase
+    if (elapsedSeconds < accumulatedTime + phaseDuration) {
+      isInTransition = false;
+      currentPhase = i;
+      Setpoint = activeProfile.phases[i].temperature;
+      return;
+    }
+
+    accumulatedTime += phaseDuration;
+  }
+
+  // If the elapsed time exceeds the total duration, indicate completion
+  currentPhase = activeProfile.numPhases;  // Indicate completion
+  Setpoint = 45;  // Default to 45°C after completion
+  isInTransition = false;
+  isComplete = true;  // Mark the process as complete
+}
+
 void printPhases(int currentPhase, unsigned long phaseElapsedTime, unsigned long currentTime) {
   oled.clear();
 
@@ -126,12 +171,13 @@ void printPhases(int currentPhase, unsigned long phaseElapsedTime, unsigned long
     oled.setCursor(0, 0);
     oled.invertText(true);
     oled.print("Done!");
+    oled.invertText(false);
+    oled.print(" ");
     formatTime((currentTime - finishTime) / 1000, timeBuffer); // Time since completion
     oled.print(timeBuffer);
     oled.print(" ");
     oled.print((int)Input);
     oled.print("c");
-    oled.invertText(false);
   } else {
     oled.setCursor(0, 0);
     oled.print(activeProfile.name);
@@ -156,7 +202,11 @@ void printPhases(int currentPhase, unsigned long phaseElapsedTime, unsigned long
       oled.print(". ");
       oled.print((int)Input);
       oled.print("c ");
-      oled.print((int)Setpoint);
+      if (fabs(Setpoint - round(Setpoint)) < 0.05) {
+          oled.print((int)Setpoint);  // Print without decimals
+      } else {
+          oled.print(Setpoint, 1);    // Print with 1 decimal place
+      }
       oled.print("c ");
       oled.print(timeBuffer);
     } else {