Water floor heater system

maluko

hi,

since month that i wondering if could built a controller for the water floor heater system,
i have solar panel with a pump that bring warm water to circulate on floor pipes.

so my goal was built the controller for this, I started with small code after I added more features and ended up creating a board with components.

very soon , it is a temperature comparator with LCD , a button to temporarily turn on the LCD and the other to change the summer / winter cycle.

But when i arrived at finish part i discover a bug, that is when there is a rapid power failure the system does not restart , it is with the LCD turned on but not the system works.
just as I am a curious coder , having not been able to solve the problem, i am asking for your help in such problem.

Thanks

/* Este sketch lê 2 DS18B20 "1-Wire" digital
com LCD e botao 
*/ 
#include <Wire.h>
#include <OneWire.h>
#include <SPI.h>
#include <MySensor.h>
#include <LiquidCrystal_I2C.h>
#include <DallasTemperature.h>
#include <Bounce2.h>

// -----------Configurações personalizadas-------------------------
#define ONE_WIRE_BUS 3         // DS18B20 Ligado ao pin X no arduino
#define rele 7             // Relé ligado ao pin X no arduino
#define Tempo_lcd_ligado 2500 // define o tempo do lcd ligado após ligar botão (milisegundos)
#define Diferenca 1.0          // Define a diferença entre sensores para ativar relé
#define botao_lcd A3          // Escolher pin de entrada para botão
#define botao_verao A0         // escolher Modo verao/inverno
// my sensors --botão
#define CHILD_ID 7              // 
#define BUTTON_PIN  7
//------------------------------------------------------------------
#define MAX_ATTACHED_DS18B20 16
// configura onewire para comunicar com qq dispositivo OW
OneWire oneWire(ONE_WIRE_BUS);

// Envia a referençia oneWire para Dallas Temperature. 
DallasTemperature sensors(&oneWire);

// configura o endereço LCD I2C, descobrir endereço ver outro skecht
LiquidCrystal_I2C lcd(0x3F, 2, 1, 0, 4, 5, 6, 7, 3, POSITIVE);  

//definir estado inicial do relé
int state1 = 0;
int state2 = digitalRead(botao_verao);
// defiinir estado inicial do botão
int buttonState = 0;

// definir endereço dos sensores de temp 1-Wire, descobrir ver outro sketch .
DeviceAddress solpainel = { 0x28, 0xFF, 0xEC, 0xDA, 0xA4, 0x15, 0x01, 0x8C };
DeviceAddress bomba = { 0x28, 0xFF, 0x2D, 0x17, 0x00, 0x16, 0x03, 0x46 };

// numero de dispositivos 1wire encontrados
int numberOfDevices;

//Variaveis para controlo logico
MySensor gw;
float lastTemperature[MAX_ATTACHED_DS18B20];
int numSensors=0;
boolean receivedConfig = false;
boolean metric = true;
MyMessage msg(0,V_TEMP);
//---- mysensors - botão
Bounce debouncer = Bounce();
int oldValue=-1;
MyMessage msg1(CHILD_ID,V_TRIPPED);
//----------
float   Temp1, Temp2;   //  grava para comparação

float differential1 = 0.0 ;
float differential2 = 0.0 ;
int invalidCount = 0;

//codigo corre sempre que se inicia.

void setup(void)

{
  delay(6000);
  // iniciar serial port
  Serial.begin(9600);
  // Start up the library
  Serial.println ("ligando sensores one wire");
  sensors.begin();
  gw.begin();
  gw.sendSketchInfo("Temperature Sensor", "1.1");
  numSensors = sensors.getDeviceCount();
  for (int i=0; i<numSensors && i<MAX_ATTACHED_DS18B20; i++) {   
     gw.present(i, S_TEMP);
  }
  //---------------------------------------------mysensor botao
  // Setup the button
  pinMode(BUTTON_PIN,INPUT);
  // Activate internal pull-up
  digitalWrite(BUTTON_PIN,HIGH);
  
  // After setting up the button, setup debouncer
  debouncer.attach(BUTTON_PIN);
  debouncer.interval(5);
  
  // Register binary input sensor to gw (they will be created as child devices)
  // You can use S_DOOR, S_MOTION or S_LIGHT here depending on your usage. 
  // If S_LIGHT is used, remember to update variable type you send in. See "msg" above.
  gw.present(CHILD_ID, S_DOOR);  
  //--------------------------------
  // locate devices on the one wire bus
  Serial.println("");
  Serial.print("encontrando dispositivos 1-wire...");
  Serial.println ("");
  Serial.print("encontrado ");
  Serial.print(sensors.getDeviceCount(), DEC);
  Serial.println(" dispositivos.");
  lcd.begin(16,2);
  Serial.print("Ligando LCD");
  Serial.print("\n\r");
// ------- Pisca 3 vezes  -------------
  for(int i = 0; i< 3; i++)
  {
    lcd.backlight();
    delay(250);
    lcd.noBacklight();
    delay(250);
  }
  lcd.backlight(); // finish with backlight on 
//-------- Escreve carateres no LCD ------------------
  lcd.setCursor(0,0);
  lcd.print("Comparador do");
  delay(1000);
  lcd.setCursor(0,1);
  lcd.print("Aquecimento");
  delay(2000);
  lcd.clear();
 // set the resolution to 10 bit (good enough?)
  sensors.setResolution(solpainel, 10);
  sensors.setResolution(bomba, 10);
  //delay (1500);
  lcd.noBacklight();
 //definir pin output
   { 
  pinMode(rele, OUTPUT);
  pinMode(botao_lcd, INPUT);
  pinMode(botao_verao, INPUT); 
   }
  delay (1000);
}

void printTemperature(DeviceAddress deviceAddress)
{
  float tempC = sensors.getTempC(deviceAddress);
  if (tempC == -127.00) {
    Serial.print("Erro a obter temperatura");
  } else {
    Serial.print("C: ");
    Serial.print(tempC);
    }
}

void loop(void)
{
  gw.process();
  
  Serial.print("A atualizar temperaturas...\n\r");
  sensors.requestTemperatures();
  int16_t conversionTime = sensors.millisToWaitForConversion(sensors.getResolution());
  gw.sleep(conversionTime);
  for (int i=0; i<numSensors && i<MAX_ATTACHED_DS18B20; i++) {
     float temperature = static_cast<float>(static_cast<int>((gw.getConfig().isMetric?sensors.getTempCByIndex(i):sensors.getTempFByIndex(i)) * 10.)) / 10.;
     #if COMPARE_TEMP == 1
     if (lastTemperature[i] != temperature && temperature != -127.00 && temperature != 85.00) {
     #else
     if (temperature != -127.00 && temperature != 85.00) {
     #endif
       gw.send(msg.setSensor(i).set(temperature,1));   
       lastTemperature[i]=temperature; 
     }
    }    
  Serial.print("Temp do painel: ");
  printTemperature(solpainel);
  Serial.print("\n\r");
  Serial.print("Temp da bomba: ");
  printTemperature(bomba);
  Serial.print("\n\r");
  Serial.println(""); 
  Serial.println("");
  Serial.print ("estado do rele: ");
  Serial.println(state1);
  Serial.println("");
  
  buttonState = digitalRead(botao_lcd);
 
    if (buttonState == HIGH){
      // Botao pressionado.
      Serial.println("Botao pressionado - HIGH");
      lcd.on();
      lcd.setCursor(0,0);
      buttonState = digitalRead(botao_verao);
       if (buttonState == HIGH) {
        lcd.print("Modo: Verao");}
       else {
        lcd.print("Modo: Inverno");
       }
      delay (1000);
      lcd.setCursor(0,0);
      lcd.print("T.Painel :");
      lcd.print(sensors.getTempC(solpainel));
      lcd.setCursor(15,1);
      lcd.print("C");
     lcd.backlight();
      lcd.setCursor(0,1);
      lcd.print("T.Entrada:");
      lcd.print(sensors.getTempC(bomba));
      lcd.setCursor(15,0);
      lcd.print("C");
      delay (Tempo_lcd_ligado);
      lcd.clear();
      lcd.off();
      
    }
    else{
      // botao nao pressionado.
      Serial.println("Botao nao pressionado - LOW");
    
    }
//Sensors for logic
Temp1 = sensors.getTempC(bomba);
Temp2 = sensors.getTempC(solpainel);

     
     //diferença entre Solpainel e bomba
      differential1 = Temp2-Temp1;
      differential2 = Temp1-Temp2;
      Serial.print("Diferenca para inverno e:");
      Serial.println(differential1);
      Serial.println("");
      Serial.print("Diferenca para Verao e:");
      Serial.println(differential2);
      Serial.println("");
      
      //logic1
     {
      buttonState = digitalRead(botao_verao);
     if (buttonState == HIGH){
       
       if (differential2 >= (Diferenca)) { // comparara temps,
        (state2 = 1);     
        digitalWrite(rele, LOW);    
        Serial.print("bomba verao ligada");
        Serial.print("\n\r");}
       else {
        (state2 = 0);
        digitalWrite(rele, HIGH);
        Serial.print("bomba verao desligada");
        Serial.println("");
        Serial.print("\n\r");}}
     else {        
       if (differential1 >= (Diferenca)) { // comparara temps,
        (state1 = 1);     
        digitalWrite(rele, LOW);    
        Serial.print("bomba inverno ligada");
        Serial.print("\n\r");}
       else {
        (state1 = 0);
        digitalWrite(rele, HIGH);
        Serial.print("bomba inverno Desligada");
        Serial.println("");
        Serial.print("\n\r");}
          }
     } 
  {
  debouncer.update();
  // Get the update value
  int value = debouncer.read();
 
  if (value != oldValue) {
     // Send in the new value
     gw.send(msg1.set(value==LOW ? 1 : 0));
     oldValue = value;
  }
} 
delay (1000);
}

koen01

I've seen this when I set the radio power to max and power the LCD via the nano at the same time. The LCD takes to much so the rest doesn't work....

maluko

if i delete all mysensor code it work fine, but i want to send at my domoticz server.

thanks

maluko

@koen01
what have you done to this not happen?

maluko

the strange think is if i wait a few seconds this goes on with normality.

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