Replaced DHT11 and adjusted parameters during tests.

greenhouse.ino

@@ -3,7 +3,7 @@
 
 dht DHT;
 
-//#define __debug
+#define __debug
 
 #define PROGRAM_VERSION "0.4.0"
 
@@ -17,23 +17,28 @@ dht DHT;
 #define LED5Pin 8
 #define LED6Pin 9
 #define ButtonPin 13
+#define TEMPERATURE_SAMPLES 10
 
 int leds[LEDCount];
 double Setpoint;
 int SetpointMode;
 boolean relayState;
 double temperaturaQueAchava;
+double temperaturaMedia[TEMPERATURE_SAMPLES];
+int temperaturaMediaIndex;
+boolean tempSensorOK;
+//unsigned long elapsed;
 
 void setup()
 {
   Serial.begin(115200);
-  Serial.println("Kegerator");
+  Serial.println("Greenhouse - for beer fermentation");
   Serial.print("PROGRAM VERSION: ");
   Serial.println(PROGRAM_VERSION);
   Serial.print("\tDHT LIBRARY VERSION: ");
   Serial.println(DHT_LIB_VERSION);
   Serial.println();
-  Serial.println("Type,  status,  Humidity (%),  Temperature (C),  Relay State (ON\\OFF)");
+  Serial.println("Temp Sensor,\tSensor Status,\temperaturaAlvo (C),\temperaturaQueDiz (C),\ttempetaturaQueEuAcho (C),\tRelay State (ON\\OFF)");
 
   leds[0] = LED1Pin;
   leds[1] = LED2Pin;
@@ -42,7 +47,7 @@ void setup()
   leds[4] = LED5Pin;
   leds[5] = LED6Pin;
   Setpoint = 18.0;
-  SetpointMode = 0;
+  SetpointMode = 18;
   temperaturaQueAchava = 200.0;
 
   // Relay
@@ -66,10 +71,24 @@ void setup()
 
   // Button
   pinMode(ButtonPin, INPUT);
+
+  for( temperaturaMediaIndex = 0; temperaturaMediaIndex < TEMPERATURE_SAMPLES; temperaturaMediaIndex++ ) {
+    temperaturaMedia[temperaturaMediaIndex] = Setpoint;
+  }
+
+  setLEDs(SetpointMode);
+
+  tempSensorOK = false;
+  //elapsed = millis();
 }
 
 void loop()
 {
+  /*if ( millis() - 4000 > elapsed ) {
+    Serial.println("Temp Sensor,\tSensor Status,\temperaturaAlvo (C),\temperaturaQueDiz (C),\ttempetaturaQueEuAcho (C),\tRelay State (ON\\OFF)");
+    elapsed = millis();
+  }*/
+
   if ( hasBtnPressed() ) {
 
     // increase mode
@@ -100,66 +119,107 @@ void loop()
   int chk = DHT.read11(DHT11_PIN);
 
   // debug received data
-  debugDHT(chk);
-
-  double temperaturaQueDiz = DHT.temperature;
-  double tempetaturaQueEuAcho;
-
-  if (temperaturaQueAchava == 200.0)
-    temperaturaQueAchava = temperaturaQueDiz;
-
-  if (temperaturaQueAchava > temperaturaQueDiz)
-    tempetaturaQueEuAcho = temperaturaQueAchava - 0.25;
-  else if (temperaturaQueAchava < temperaturaQueDiz)
-    tempetaturaQueEuAcho = temperaturaQueAchava + 0.25;
-  else
-    tempetaturaQueEuAcho = temperaturaQueAchava;
-
-  //tempetaturaQueEuAcho = temperaturaQueDiz;
-
-#ifdef __debug
-  Serial.print("temperaturaAlvo = ");
-  Serial.print(Setpoint, 1);
-  Serial.print(", temperaturaQueDiz = ");
-  Serial.print(temperaturaQueDiz, 1);
-  Serial.print(",  tempetaturaQueEuAcho = ");
-  Serial.print(tempetaturaQueEuAcho, 1);
-  Serial.print(",  ");
-#endif
+  tempSensorOK = debugDHT(chk);
 
-  if ( tempetaturaQueEuAcho > (Setpoint + 1.0) ) {
+  if(tempSensorOK) {
 
-    // turn on compressor to start cooling
-    relayState = true;
-    digitalWrite( RelayPin, LOW );
-  }
-  else {
-    if ( tempetaturaQueEuAcho <= (Setpoint - 1.0) ) {
+    double temperaturaQueDiz = DHT.temperature;
+  
+    if (temperaturaQueAchava == 200.0) {
+      temperaturaQueAchava = temperaturaQueDiz;
+    }
+  
+    // Calcular a temperatura de processamento
+    temperaturaMediaIndex++;
+    if ( temperaturaMediaIndex >= TEMPERATURE_SAMPLES ) {
+      temperaturaMediaIndex = 0;
+    }
 
-      // turn off compressor to stop cooling
-      relayState = false;
-      digitalWrite( RelayPin, HIGH );
+    /*Serial.print("t[");
+    Serial.print(temperaturaMediaIndex);
+    Serial.print("]=");
+    Serial.print(temperaturaQueAchava);*/
+    if (temperaturaQueDiz > (temperaturaQueAchava + 0)) {
+      //Serial.print("+0.1, ");
+      temperaturaMedia[temperaturaMediaIndex] = (temperaturaQueAchava + 0.2);
+    }
+    else {
+      if (temperaturaQueDiz < (temperaturaQueAchava - 0.1)) {
+        //Serial.print("-0.1, ");
+        temperaturaMedia[temperaturaMediaIndex] = (temperaturaQueAchava - 1.0);
+      }
+      else {
+        //Serial.print(", ");
+        temperaturaMedia[temperaturaMediaIndex] = temperaturaQueDiz;
+      }
     }
-  }
 
-#ifdef __debug
-  if (relayState) {
-    Serial.println( "ON" );
-  }
-  else {
-    Serial.println( "OFF" );
+    double tempetaturaQueEuAcho = 0.0;
+    for ( int i = 0; i < TEMPERATURE_SAMPLES; i++ ) {
+      /*Serial.print(temperaturaMedia[i]);
+      Serial.print(" ");*/
+      tempetaturaQueEuAcho += temperaturaMedia[i];
+    }
+    tempetaturaQueEuAcho /= TEMPERATURE_SAMPLES;
+    //Serial.print(", ");
+  
+  /*
+    
+  
+    if (temperaturaQueAchava > temperaturaQueDiz)
+      tempetaturaQueEuAcho = temperaturaQueAchava - 0.25;
+    else if (temperaturaQueAchava < temperaturaQueDiz)
+      tempetaturaQueEuAcho = temperaturaQueAchava + 0.25;
+    else
+      tempetaturaQueEuAcho = temperaturaQueAchava;
+  
+    //tempetaturaQueEuAcho = temperaturaQueDiz;
+  */
+  #ifdef __debug
+    Serial.print("");
+    Serial.print(Setpoint, 2);
+    Serial.print(", ");
+    Serial.print(temperaturaQueDiz, 2);
+    Serial.print(", ");
+    Serial.print(tempetaturaQueEuAcho, 2);
+    Serial.print(",  ");
+  #endif
+  
+    if ( tempetaturaQueEuAcho >= (Setpoint + 1.0) ) {
+  
+      // turn on compressor to start cooling
+      relayState = true;
+      digitalWrite( RelayPin, LOW );
+    }
+    else {
+      if ( tempetaturaQueEuAcho <= (Setpoint - 0.0) ) {
+  
+        // turn off compressor to stop cooling
+        relayState = false;
+        digitalWrite( RelayPin, HIGH );
+      }
+    }
+  
+  #ifdef __debug
+    if (relayState) {
+      Serial.println( "ON" );
+    }
+    else {
+      Serial.println( "OFF" );
+    }
+  #endif
+  
+    temperaturaQueAchava = tempetaturaQueEuAcho;
+    delay(50);
+    //delay(100);
   }
-#endif
-
-  temperaturaQueAchava = tempetaturaQueEuAcho;
-  delay(50);
 }
 
 void setLEDs( int number ) {
   int calcNumber = number;
 
-  for ( int i = (LEDCount - 1); i >= 0; i++ ) {
-    boolean zero = calcNumber % 2 == 0 ? true : false;
+  for ( int i = (LEDCount - 1); i >= 0; i-- ) {
+    boolean zero = ((calcNumber % 2) == 0) ? true : false;
     calcNumber /= 2;
 
     if (zero) {
@@ -188,15 +248,18 @@ boolean hasBtnPressed() {
   }
 }
 
-void debugDHT( int chk ) {
+boolean debugDHT( int chk ) {
+  boolean ret = false;
 #ifdef __debug
-  Serial.print("DHT11,   ");
+  //Serial.print("DHT11,   ");
 #endif
   
   switch (chk)
   {
     case DHTLIB_OK:
+      ret = true;
 #ifdef __debug
+      Serial.print("DHT11,   ");
       Serial.print("OK,  ");
 #endif
       break;
@@ -207,7 +270,14 @@ void debugDHT( int chk ) {
       Serial.print("Time out error,  ");
       break;
     case DHTLIB_ERROR_CONNECT:
-      Serial.print("Connect error,  ");
+      //Serial.print("Connect error,  ");
+/*
+      relayState = false;
+      digitalWrite( RelayPin, HIGH );
+      setLEDs(63);
+
+      while(true) Serial.println("ERROR, SAFEMODE ON!!!!");
+  */    
       break;
     case DHTLIB_ERROR_ACK_L:
       Serial.print("Ack Low error,  ");
@@ -224,5 +294,7 @@ void debugDHT( int chk ) {
   //Serial.print(DHT.humidity, 1);
   //Serial.print(",  ");
 #endif
+
+  return ret;
 }