mosftes

opncure.ino

@@ -5,15 +5,13 @@
 #include <DHT.h>
 #include <ESP8266WebServer.h>
 
-#define DHT1_PIN 11
-#define DHT2_PIN 12
-#define RELAY_COOLING_PIN 13
-#define RELAY_HEATING_PIN 14
+#define DHT_PIN 11
+#define MOSFET_HEATING_PIN 13
+#define MOSFET_COOLING_PIN 14
 
 #define DHT_TYPE DHT11
 
-DHT dht1(DHT1_PIN, DHT_TYPE);
-DHT dht2(DHT2_PIN, DHT_TYPE);
+DHT dht(DHT_PIN, DHT_TYPE);
 LiquidCrystal_I2C lcd(0x27, 20, 4);
 
 ESP8266WebServer server(80);
@@ -28,21 +26,20 @@ float targetTemperature = 25.0;
 unsigned long startTime = 0;
 unsigned long duration = 0;
 
-float surfaceTemp = 0.0;
-float airTemp = 0.0;
-float surfaceHum = 0.0;
-float airHum = 0.0;
+float fridgeTemp = 0.0;
+
+bool heatingActive = false;
+bool coolingActive = false;
 
 void setup() {
   Serial.begin(115200);
 
-  pinMode(RELAY_COOLING_PIN, OUTPUT);
-  pinMode(RELAY_HEATING_PIN, OUTPUT);
-  digitalWrite(RELAY_COOLING_PIN, LOW);
-  digitalWrite(RELAY_HEATING_PIN, LOW);
+  pinMode(MOSFET_HEATING_PIN, OUTPUT);
+  pinMode(MOSFET_COOLING_PIN, OUTPUT);
+  analogWriteRange(255); // Set PWM range to 0-255
+  analogWriteFreq(20000); // Set PWM frequency to 20 kHz
 
-  dht1.begin();
-  dht2.begin();
+  dht.begin();
   lcd.begin(20,4);
   lcd.backlight();
 
@@ -75,7 +72,7 @@ void setup() {
 void loop() {
   server.handleClient();
   updateSensors();
-  controlRelays();
+  controlPeltier();
   updateLCD();
 
   switch (currentMode) {
@@ -89,56 +86,59 @@ void loop() {
       curveMode();
       break;
     case OFF:
-      disableRelays();
+      disablePeltier();
       break;
   }
 }
 
 void updateSensors() {
-  surfaceTemp = dht1.readTemperature();
-  surfaceHum = dht1.readHumidity();
-  airTemp = dht2.readTemperature();
-  airHum = dht2.readHumidity();
-  Serial.printf("Surface Temp: %.1f C, Air Temp: %.1f C\n", surfaceTemp, airTemp);
+  fridgeTemp = dht.readTemperature();
+  Serial.printf("Fridge Temp: %.1f C\n", fridgeTemp);
 }
 
-void enableCooling() {
-  digitalWrite(RELAY_HEATING_PIN, LOW);
-  delay(100); 
-  digitalWrite(RELAY_COOLING_PIN, HIGH);
+void controlHeating(int dutyCycle) {
+  analogWrite(MOSFET_COOLING_PIN, 0); // Ensure cooling is off
+  analogWrite(MOSFET_HEATING_PIN, dutyCycle);
+  heatingActive = true;
+  coolingActive = false;
 }
 
-void enableHeating() {
-  digitalWrite(RELAY_COOLING_PIN, LOW);
-  delay(100);
-  digitalWrite(RELAY_HEATING_PIN, HIGH);
+void controlCooling(int dutyCycle) {
+  analogWrite(MOSFET_HEATING_PIN, 0); // Ensure heating is off
+  analogWrite(MOSFET_COOLING_PIN, dutyCycle);
+  coolingActive = true;
+  heatingActive = false;
 }
 
-void disableRelays() {
-  digitalWrite(RELAY_COOLING_PIN, LOW);
-  digitalWrite(RELAY_HEATING_PIN, LOW);
+void disablePeltier() {
+  analogWrite(MOSFET_HEATING_PIN, 0);
+  analogWrite(MOSFET_COOLING_PIN, 0);
+  heatingActive = false;
+  coolingActive = false;
 }
 
-void controlRelays() {
+void controlPeltier() {
   if (currentMode == OFF) {
-    disableRelays();
+    disablePeltier();
     return;
   }
 
   if (targetTemperature < 25) {
-    if (airTemp > targetTemperature) {
-      enableCooling();
+    if (fridgeTemp > targetTemperature) {
+      int dutyCycle = map(fridgeTemp - targetTemperature, 0, 10, 0, 255);
+      controlCooling(dutyCycle);
     } else {
-      disableRelays();
+      disablePeltier();
     }
   } else if (targetTemperature > 25) {
-    if (airTemp < targetTemperature) {
-      enableHeating();
+    if (fridgeTemp < targetTemperature) {
+      int dutyCycle = map(targetTemperature - fridgeTemp, 0, 10, 0, 255);
+      controlHeating(dutyCycle);
     } else {
-      disableRelays();
+      disablePeltier();
     }
   } else {
-    disableRelays();
+    disablePeltier();
   }
 }
 
@@ -150,16 +150,11 @@ void updateLCD() {
   lcd.print(" C");
 
   lcd.setCursor(0, 1);
-  lcd.print("Surface Temp: ");
-  lcd.print(surfaceTemp, 1);
+  lcd.print("Fridge Temp: ");
+  lcd.print(fridgeTemp, 1);
   lcd.print(" C");
 
   lcd.setCursor(0, 2);
-  lcd.print("Air Temp: ");
-  lcd.print(airTemp, 1);
-  lcd.print(" C");
-
-  lcd.setCursor(0, 3);
   lcd.print("Mode: ");
   switch (currentMode) {
     case TIME_MODE:
@@ -170,41 +165,13 @@ void updateLCD() {
       break;
     case CURVE_MODE:
       lcd.print("Curve Mode");
-      lcd.setCursor(0, 3);
-      lcd.print("Elapsed: ");
-      lcd.print((millis() - startTime) / 1000, 1);
-      lcd.print(" s");
       break;
     case OFF:
-    default:
       lcd.print("Off");
       break;
   }
 }
 
-void timeMode() {
-  if (millis() - startTime >= duration * 3600 * 1000) {
-    currentMode = OFF;
-  }
-  controlRelays();
-}
-
-void holdMode() {
-  controlRelays();
-}
-
-void curveMode() {
-  float elapsedTime = (millis() - startTime) / 1000.0;
-  float gaussValue = exp(-pow((elapsedTime - duration / 2.0), 2) / (2 * pow(duration / 6.0, 2)));
-  targetTemperature = targetTemperature * gaussValue;
-
-  if (elapsedTime >= duration) {
-    currentMode = OFF;
-  }
-
-  controlRelays();
-}
-
 void handleRoot() {
   String html = R"rawliteral(
     <!DOCTYPE html>