.gitignore

@@ -1,2 +1 @@
 *.swp
-.idea*

hot_fermentation.ino

@@ -1,7 +1,7 @@
+#include <LiquidCrystal_I2C.h>
 #include <max6675.h>
 #include <Wire.h>
 #include <PID_v1.h>
-#include <GyverOLED.h>  // Include the GyverOLED library
 
 // MAX6675 configuration
 int max_SO = 12;
@@ -9,35 +9,35 @@ int max_CS = 10;
 int max_SCK = 13;
 MAX6675 thermocouple(max_SCK, max_CS, max_SO);
 
-// OLED configuration
+// LCD configuration via I2C
-GyverOLED<SSD1306_128x64, OLED_BUFFER> oled;
+LiquidCrystal_I2C lcd(0x27, 16, 2); // Set the LCD I2C address
 
 // SSR pin configuration
 const int ssrPin = 7;
 
-// Profile structure definition
+// Process phases (temperatures in Celsius and duration in minutes)
-struct Phase {
-  int temperature;
-  int duration; // in minutes
-};
 
-struct Profile {
+// const int temperatures[] = {49, 51, 55, 45};
-  const char* name;
+// const int phaseDurations[] = {30, 30, 30, 30};  // Individual durations for each phase in minutes
-  Phase phases[6]; // Maximum of 6 phases per profile
+// const int numPhases = 3;
-  int numPhases;
-};
 
-// Profiles definition
-Profile profiles[] = {
-  {"Test", {{49, 1}, {51, 1}, {55, 1}, {45, 1}}, 4},
-  {"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},
-};
 
-// Select active profile (constant at this point)
+// const int temperatures[] = {47, 55, 65, 72, 85, 0};
-const int activeProfileIndex = 0;  // Index of the active profile, starting from 0
+// const int phaseDurations[] = {20, 20, 20, 20, 20, 5};  // Individual durations for each phase in minutes
-Profile activeProfile = profiles[activeProfileIndex];
+// const int numPhases = 5;
+
+// const int temperatures[] = {85, 50};
+// const int phaseDurations[] = {120, 120};  // Individual durations for each phase in minutes
+// const int numPhases = 1;
+
+const int temperatures[] = {47, 53, 65, 72, 90, 50};
+const int phaseDurations[] = {120, 120, 150, 60, 105, 60};  // Individual durations for each phase in minutes
+const int numPhases = 5;
+
+// const int temperatures[] = {55, 65, 72, 80, 90, 10};
+// const int phaseDurations[] = {60, 120, 120, 120, 30, 100};  // Individual durations for each phase in minutes
+// const int numPhases = 5;
+
 
 // PID Control variables
 double Setpoint, Input, Output;
@@ -48,26 +48,19 @@ PID myPID(&Input, &Output, &Setpoint, Kp, Ki, Kd, DIRECT);
 unsigned long phaseStartTime;
 unsigned long totalStartTime;
 unsigned long ssrLastSwitchTime;
-unsigned long totalElapsedTime;
-unsigned long totalProcessTime;
 const int ssrSwitchInterval = 1000;  // SSR switching interval in milliseconds
 
-// Buffer for formatted time strings
-char timeBuffer[10];
-
 void setup() {
   pinMode(ssrPin, OUTPUT);
   Serial.begin(9600);
-  oled.init();          // Initialize the OLED
+  lcd.init();
-  oled.clear();         // Clear the display
+  lcd.backlight();
-  oled.setScale(2);     // Set text scale to 2 for better visibility
+  lcd.print("Starting...");
-  oled.print("Starting...");
+  delay(2000);
-  oled.update();
-  oled.setScale(1);     // Set text scale back to 1 for more detailed information
   
   // Begin the first phase
   phaseStartTime = totalStartTime = millis();
-  Setpoint = activeProfile.phases[0].temperature;
+  Setpoint = temperatures[0];
   myPID.SetMode(AUTOMATIC);
   myPID.SetOutputLimits(0, 1);  // SSR is either ON or OFF
   digitalWrite(ssrPin, HIGH); // Start with heater on
@@ -88,91 +81,47 @@ void loop() {
   }
 
   // Display time calculations
-  totalElapsedTime = (currentTime - totalStartTime) / 1000; // Total elapsed time in seconds
+  unsigned long totalElapsedTime = (currentTime - totalStartTime) / 1000; // Total elapsed time in seconds
-  totalProcessTime = 0;
+  unsigned long totalProcessTime = 0;
-  for (int i = 0; i < activeProfile.numPhases; i++) {
+  for (int i = 0; i < numPhases; i++) {
-    totalProcessTime += activeProfile.phases[i].duration * 60;
+    totalProcessTime += phaseDurations[i] * 60;
   }
 
   // Check if the phase duration is complete
-  if ((currentTime - phaseStartTime) / 1000 >= activeProfile.phases[currentPhase].duration * 60) {
+  if ((currentTime - phaseStartTime) / 1000 >= phaseDurations[currentPhase] * 60) {
     currentPhase++;
-    if (currentPhase >= activeProfile.numPhases) {
+    if (currentPhase >= numPhases) {
-      oled.clear();
+      lcd.clear();
-      oled.print("Complete");
+      lcd.print("Complete");
       digitalWrite(ssrPin, LOW); // Turn off the heater
       return; // Stop further execution
     }
     phaseStartTime = currentTime; // Reset the start time for the new phase
-    Setpoint = activeProfile.phases[currentPhase].temperature;
+    Setpoint = temperatures[currentPhase];
   }
 
+  // Display data on the LCD
+  lcd.clear();
+  lcd.setCursor(0, 0);
+  lcd.print(formatTime(totalElapsedTime));
+  lcd.print(" (");
+  lcd.print(formatTime(totalProcessTime));
+  lcd.print(")");
 
-  // Display all phases and highlight the current one
+  lcd.setCursor(0, 1);
-  printPhases(currentPhase, currentTime - phaseStartTime);
+  lcd.print(currentPhase + 1);
-
+  lcd.print(". ");
-  oled.update();
+  lcd.print((int)Input);
+  lcd.print("C ");
+  lcd.print((int)Setpoint);
+  lcd.print("C ");
+  lcd.print(formatTime((phaseDurations[currentPhase] * 60) - ((currentTime - phaseStartTime) / 1000)));
 
   delay(1000); // Update every second
 }
 
-void printPhases(int currentPhase, unsigned long phaseElapsedTime) {
+String formatTime(long seconds) {
-  oled.clear();
+  long mins = seconds / 60;
-
+  int secs = seconds % 60;
-  oled.setCursor(0, 0);
+  return (mins < 10 ? "0" : "") + String(mins) + ":" + (secs < 10 ? "0" : "") + String(secs);
-  oled.print(activeProfile.name);
-  // Display the totals and current state on the OLED
-  oled.setCursor(18, 1);
-  formatTime(totalElapsedTime, timeBuffer);
-  oled.print(timeBuffer);
-  oled.print(" / ");
-  formatTime(totalProcessTime, timeBuffer);
-  oled.print(timeBuffer);
-
-  for (int i = 0; i < activeProfile.numPhases; i++) {
-    if (i == currentPhase) {
-      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) - (phaseElapsedTime / 1000);
-      formatTime(timeRemaining, timeBuffer);
-      oled.print(i + 1);
-      oled.print(". ");
-      oled.print((int)Input);
-      oled.print("c ");
-      oled.print((int)Setpoint);
-      oled.print("c ");
-      oled.print(timeBuffer);
-    } else {
-      oled.invertText(false); // Normal text for other phases
-
-      oled.setCursor(0, i + 2);  // Set cursor to the row corresponding to the phase
-      formatTime(activeProfile.phases[i].duration * 60, timeBuffer);
-      oled.print(i + 1);
-      oled.print(". ");
-      oled.print(activeProfile.phases[i].temperature);
-      oled.print("c ");
-      oled.print(timeBuffer);
-    }
-  }
-
-  oled.invertText(false); // Ensure text inversion is off after the loop
-}
-
-void formatTime(long seconds, char* buffer) {
-    long hours = seconds / 3600;
-    long mins = (seconds % 3600) / 60;
-    int secs = seconds % 60;
-
-    buffer[0] = '\0';  // Ensure the buffer is empty
-
-    if (hours > 0) {
-        sprintf(buffer + strlen(buffer), "%ldh", hours);
-    }
-    if (mins > 0) {
-        sprintf(buffer + strlen(buffer), "%ldm", mins);
-    }
-    if (secs > 0) {
-        sprintf(buffer + strlen(buffer), "%ds", secs);
-    }
 }