Irrigation Controller (up to 16 valves with Shift Registers)

[moffen666]

Thx Bulldog for all the help, everything seems to be working as it should now.

Keep up the good work :+1:

Updated code for Domoticz.

/*
MySprinkler for MySensors

Arduino Multi-Zone Sprinkler Control

May 31, 2015

*** Version 2.0

*** Upgraded to http://MySensors.org version 1.4.1
*** Expanded for up to 16 Valves
*** Setup for active low relay board or comment out #define ACTIVE_LOW to switch to active high
*** Switch to bitshift method vs byte arrays
*** Changed RUN_ALL_ZONES Vera device to 0 (was highest valve)
*** Added optional LCD display featuring remaining time, date last ran & current time
*** Features 'raindrop' and 'clock' icons which indicate sensor is updating valve data and clock respectively
*** Added single pushbutton menu to manually select which program to run (All Zones or a Single Zone)
*** Added option of naming your Zones programmatically or with Vera (V_VAR3 used to store names)

Utilizing your Vera home automation controller and the MySensors.org gateway you can
control up to a sixteen zone irrigation system with only three digital pins.  This sketch
will create NUMBER_OF_VALVES + 1 devices on your Vera controller

This sketch features the following:

* Allows you to cycle through All zones (RUN_ALL_ZONES) or individual zone (RUN_SINGLE_ZONE) control.
* Use the 0th controller to activate RUN_ALL_ZONES (each zone in numeric sequence 1 to n)
  using Variable1 as the "ON" time in minutes in each of the vera devices created.
* Use the individual zone controller to activate a single zone.  This feature uses
  Variable2 as the "ON" time for each individual device/zone.
* Connect according to pinout below and uses Shift Registers as to allow the MySensors
  standard radio configuration and still leave available digital pins
* Turning on any zone will stop the current process and begin that particular process.
* Turning off any zone will stop the current process and turn off all zones.
* To push your new time intervals for your zones, simply change the variable on your Vera and
  your arduino will call to Vera once a minute and update accordingly.  Variables will also be
  requested when the device is first powered on.
* Pushbutton activation to RUN_ALL_ZONES, RUN_SINGLE_ZONE or halt the current program
* LED status indicator

PARTS LIST:
Available from the MySensors store - http://www.mysensors.org/store/
* Relays (8 channel)
* Female Pin Header Connector Strip
* Prototype Universal Printed Circuit Boards (PCB)
* NRF24L01 Radio
* Arduino (I used a Pro Mini)
* FTDI USB to TTL Serial Adapter
* Capacitors (10uf and .1uf)
* 3.3v voltage regulator
* Resistors (270 & 10K)
* Female Dupont Cables
* 1602 LCD (with I2C Interface)
* LED
* Push button
* Shift Register (SN74HC595)
* 2 Pole 5mm Pitch PCB Mount Screw Terminal Block
* 3 Pole 5mm Pitch PCB Mount Screw Terminal Block
* 22-24 gauge wire or similar (I used Cat5/Cat6 cable)
* 18 gauge wire (for relay)
* Irrigation Power Supply (24-Volt/750 mA Transformer)


INSTRUCTIONS:

* A step-by-step setup video is available here: http://youtu.be/l4GPRTsuHkI
* After assembling your arduino, radio, decoupling capacitors, shift register(s), status LED, pushbutton LCD (I2C connected to
  A4 and A5) and relays, and load the sketch.
* Following the instructions at https://MySensors.org include the device to your MySensors Gateway.
* Verify that each new device has a Variable1, Variable2 and Variable3. Populate data accordingly with whole minutes for
  the RUN_ALL_ZONES routine (Variable1) and the RUN_SINGLE_ZONE routines (Variable 2).  The values entered for times may be zero and
  you may use the defaulet zone names by leaving Variable3 blank.
* Once you have entered values for each zone and each variable, save the settings by pressing the red save button on your Vera.
* Restart your arduino; verify the settings are loaded into your arduino with the serial monitor; the array will be printed
  on the serial monitor.
* Your arduino should slow-flash, indicating that it is in ready mode.
* There are multiple debug serial prints that can be monitored to assure that it is operating properly.
* ***THIS SHOULD NO LONGER BE NEEDED*** The standard MySensors library now works. https://bitbucket.org/fmalpartida/new-liquidcrystal/downloads for the I2C library, or use yours

Contributed by Jim (BulldogLowell@gmail.com) with much contribution from Pete (pete.will@mysensors.org) and is released to the public domain
*/
//
#include <Wire.h>
#include <Time.h>
#include <MySensor.h>
#include <SPI.h>
#include <LiquidCrystal.h>
#include <LiquidCrystal_I2C.h>


//
#define NUMBER_OF_VALVES 4  // Change this to set your valve count up to 16.
#define VALVE_RESET_TIME 7500UL   // Change this (in milliseconds) for the time you need your valves to hydraulically reset and change state
#define RADIO_ID AUTO  // Change this to fix your Radio ID or use Auto

#define SKETCH_NAME "MySprinkler Domoticz"
#define SKETCH_VERSION "2.0"
//
#define CHILD_ID_SPRINKLER 0
//
//#define ACTIVE_LOW // comment out this line if your relays are active high
//
#define DEBUG_ON   // comment out to supress serial monitor output
//
#ifdef ACTIVE_LOW
#define BITSHIFT_VALVE_NUMBER ~(1U << (valveNumber-1))
#define ALL_VALVES_OFF 0xFFFF
#else
#define BITSHIFT_VALVE_NUMBER (1U << (valveNumber-1))
#define ALL_VALVES_OFF 0U
#endif
//
#ifdef DEBUG_ON
#define DEBUG_PRINT(x)   Serial.print(x)
#define DEBUG_PRINTLN(x) Serial.println(x)
#define SERIAL_START(x)  Serial.begin(x)
#else
#define DEBUG_PRINT(x)
#define DEBUG_PRINTLN(x)
#define SERIAL_START(x)
#endif
//
typedef enum {
  STAND_BY_ALL_OFF, RUN_SINGLE_ZONE, RUN_ALL_ZONES, CYCLE_COMPLETE, ZONE_SELECT_MENU
}
SprinklerStates;
//
SprinklerStates state = STAND_BY_ALL_OFF;
SprinklerStates lastState;
byte menuState = 0;
unsigned long menuTimer;
byte countDownTime = 10;
//
int allZoneTime [NUMBER_OF_VALVES + 1]= {0, 1, 1, 1, 1};     // Insert values in min, 0 = all zone (always 0) this is a 4 chan relay
int valveSoloTime [NUMBER_OF_VALVES + 1]= {0, 1, 1, 1, 1};   // Insert values in min, 0 = all zone (always 0) this is a 4 chan relay
int valveNumber;
int lastValve;
unsigned long startMillis;
const int ledPin = 5;
const int waterButtonPin = 3;
boolean buttonPushed = false;
boolean showTime = true;
boolean clockUpdating = false;
boolean recentUpdate = true;
const char *dayOfWeek[] = {
  "Null", "Sunday ", "Monday ", "Tuesday ", "Wednesday ", "Thursday ", "Friday ", "Saturday "
};
// Name your Zones here or use Vera to edit them by adding a name in Variable3...
String valveNickName[17] = {
  "All Zones", "Zone 1", "Zone 2", "Zone 3", "Zone 4", "Zone 5", "Zone 6", "Zone 7", "Zone 8", "Zone 9", "Zone 10", "Zone 11", "Zone 12", "Zone 13", "Zone 14", "Zone 15", "Zone 16"
};
//
time_t lastTimeRun = 0;
//Setup Shift Register...
const int latchPin = 8;
const int clockPin = 4;
const int dataPin  = 7;
//
byte clock[8] = {0x0, 0xe, 0x15, 0x17, 0x11, 0xe, 0x0}; // fetching time indicator
byte raindrop[8] = {0x4, 0x4, 0xA, 0xA, 0x11, 0xE, 0x0,}; // fetching Valve Data indicator
// Set the pins on the I2C chip used for LCD connections:
//                    addr, en,rw,rs,d4,d5,d6,d7,bl,blpol
LiquidCrystal_I2C lcd(0x27, 2, 1, 0, 4, 5, 6, 7, 3, POSITIVE);  // Set the LCD I2C address to 0x27
MySensor gw;
//
MyMessage msg1valve(CHILD_ID_SPRINKLER, V_LIGHT);
MyMessage var1valve(CHILD_ID_SPRINKLER, V_VAR1);
MyMessage var2valve(CHILD_ID_SPRINKLER, V_VAR2);
//
void setup()
{
  SERIAL_START(115200);
  DEBUG_PRINTLN(F("Initialising..."));
  pinMode(latchPin, OUTPUT);
  pinMode(clockPin, OUTPUT);
  pinMode(dataPin, OUTPUT);
  pinMode(ledPin, OUTPUT);
  pinMode(waterButtonPin, INPUT_PULLUP);
  //pinMode(waterButtonPin, INPUT);
  attachInterrupt(1, PushButton, RISING); //May need to change for your Arduino model
  digitalWrite (ledPin, HIGH);
  DEBUG_PRINTLN(F("Turning All Valves Off..."));
  updateRelays(ALL_VALVES_OFF);
  //delay(5000);
  lcd.begin(16, 2); //(16 characters and 2 line display)
  lcd.clear();
  lcd.backlight();
  lcd.createChar(0, clock);
  lcd.createChar(1, raindrop);
  //
  //check for saved date in EEPROM
  DEBUG_PRINTLN(F("Checking EEPROM for stored date:"));
  delay(500);
  if (gw.loadState(0) == 0xFF); // EEPROM flag
  {
    DEBUG_PRINTLN(F("Retreiving last run time from EEPROM..."));
    for (int i = 0; i < 4 ; i++)
    {
      lastTimeRun = lastTimeRun << 8;
      lastTimeRun = lastTimeRun | gw.loadState(i + 1); // assemble 4 bytes into an ussigned long epoch timestamp
    }
  }
  gw.begin(getVariables, RADIO_ID, false); // Change 'false' to 'true' to create a Radio repeating node
  gw.sendSketchInfo(SKETCH_NAME, SKETCH_VERSION);
  for (byte i = 0; i <= NUMBER_OF_VALVES; i++)
  {
    gw.present(i, S_LIGHT);
  }
  DEBUG_PRINTLN(F("Sensor Presentation Complete"));
  //
  digitalWrite (ledPin, LOW);
  DEBUG_PRINTLN(F("Ready..."));
  //
  lcd.setCursor(0, 0);
  lcd.print(F(" Syncing Time  "));
  lcd.setCursor(15, 0);
  lcd.write(byte(0));
  lcd.setCursor(0, 1);
  int clockCounter = 0;
  while (timeStatus() == timeNotSet && clockCounter < 21)
  {
    gw.process();
    gw.requestTime(receiveTime);
    DEBUG_PRINTLN(F("Requesting time from Gateway:"));
    delay(1000);
    lcd.print(".");
    clockCounter++;
    if (clockCounter > 16)
    {
      DEBUG_PRINTLN(F("Failed initial clock synchronization!"));
      lcd.clear();
      lcd.print(F("  Failed Clock  "));
      lcd.setCursor(0, 1);
      lcd.print(F(" Syncronization "));
      delay(2000);
      break;
    }
  }
  //
  lcd.clear();

  /*
  //Update valve data when first powered on
  for (byte i = 0; i <= NUMBER_OF_VALVES; i++)
  {
    lcd.print(F(" Updating  "));
    lcd.setCursor(0, 1);
    lcd.print(F(" Valve Data: "));
    lcd.print(i);
    boolean flashIcon = false;
    DEBUG_PRINT(F("Calling for Valve "));
    DEBUG_PRINT(i);
    DEBUG_PRINTLN(F(" Data..."));
    while (gw.process() == false)
    {
      lcd.setCursor(15, 0);
      flashIcon = !flashIcon;
      flashIcon ? lcd.write(byte(1)) : lcd.print(F(" "));
      gw.request(i, V_VAR1);
      delay(100);
    }
    while (gw.process() == false)
    {
      lcd.setCursor(15, 0);
      flashIcon = !flashIcon;
      flashIcon ? lcd.write(byte(1)) : lcd.print(F(" "));
      gw.request(i, V_VAR2);
      delay(100);
    }
    while (gw.process() == false)
    {
      lcd.setCursor(15, 0);
      flashIcon = !flashIcon;
      flashIcon ? lcd.write(byte(1)) : lcd.print(F(" "));
      gw.request(i, V_VAR3);
      delay(100);
    }
  }
  */
  lcd.clear();
}
//
void loop()
{
  gw.process();
  updateClock();
  updateDisplay();
  //goGetValveTimes();
  //
  if (buttonPushed)
  {
    menuTimer = millis();
    DEBUG_PRINTLN(F("Button Pressed"));
    if (state == STAND_BY_ALL_OFF)
    {
      state = ZONE_SELECT_MENU;
      menuState = 0;
    }
    else if (state == ZONE_SELECT_MENU)
    {
      menuState++;
      if (menuState > NUMBER_OF_VALVES)
      {
        menuState = 0;
      }
    }
    else
    {
      state = STAND_BY_ALL_OFF;
    }
    buttonPushed = false;
  }
  if (state == STAND_BY_ALL_OFF)
  {
    slowToggleLED ();
    if (state != lastState)
    {
      updateRelays(ALL_VALVES_OFF);
      DEBUG_PRINTLN(F("State Changed... all Zones off"));
      for (byte i = 0; i <= NUMBER_OF_VALVES; i++)
      {
        delay(50);
        gw.send(msg1valve.setSensor(i).set(false), false);
      }
      lcd.clear();
      lcd.setCursor(0,0);
      lcd.print(F("** Irrigation **"));
      lcd.setCursor(0,1);
      lcd.print(F("**   Halted   **"));
      delay(2000);
      lastValve = -1;
    }
  }
  //
  else if (state == RUN_ALL_ZONES)
  {
    if (lastValve != valveNumber)
    {
      for (byte i = 0; i <= NUMBER_OF_VALVES; i++)
      {
        if (i == 0 || i == valveNumber)
        {
          gw.send(msg1valve.setSensor(i).set(true), false);
        }
        else
        {
          gw.send(msg1valve.setSensor(i).set(false), false);
        }
      }
    }
    lastValve = valveNumber;
    fastToggleLed();
    if (state != lastState)
    {
      valveNumber = 1;
      updateRelays(ALL_VALVES_OFF);
      DEBUG_PRINTLN(F("State Changed, Running All Zones..."));
    }
    unsigned long nowMillis = millis();
    if (nowMillis - startMillis < VALVE_RESET_TIME)
    {
      updateRelays(ALL_VALVES_OFF);
    }
    else if (nowMillis - startMillis < (allZoneTime[valveNumber] * 60000UL))
    {
      updateRelays(BITSHIFT_VALVE_NUMBER);
    }
    else
    {
      DEBUG_PRINTLN(F("Changing Valves..."));
      updateRelays(ALL_VALVES_OFF);
      startMillis = millis();
      valveNumber++;
      if (valveNumber > NUMBER_OF_VALVES)
      {
        state = CYCLE_COMPLETE;
        startMillis = millis();
        lastValve = -1;
        lastTimeRun = now();
        saveDateToEEPROM(lastTimeRun);
        for (byte i = 0; i <= NUMBER_OF_VALVES; i++)
        {
          gw.send(msg1valve.setSensor(i).set(false), false);
        }
        DEBUG_PRINT(F("State = "));
        DEBUG_PRINTLN(state);
      }
    }
  }
  //
  else if (state == RUN_SINGLE_ZONE)
  {
    fastToggleLed();
    if (state != lastState)
    {
      for (byte i = 0; i <= NUMBER_OF_VALVES; i++)
      {
        if (i == 0 || i == valveNumber)
        {
          gw.send(msg1valve.setSensor(i).set(true), false);
        }
        else
        {
          gw.send(msg1valve.setSensor(i).set(false), false);
        }
      }
      DEBUG_PRINTLN(F("State Changed, Single Zone Running..."));
      DEBUG_PRINT(F("Zone: "));
      DEBUG_PRINTLN(valveNumber);
    }
    unsigned long nowMillis = millis();
    if (nowMillis - startMillis < VALVE_RESET_TIME)
    {
      updateRelays(ALL_VALVES_OFF);
    }
    else if (nowMillis - startMillis < (valveSoloTime [valveNumber] * 60000UL))
    {
      updateRelays(BITSHIFT_VALVE_NUMBER);
    }
    else
    {
      updateRelays(ALL_VALVES_OFF);
      for (byte i = 0; i <= NUMBER_OF_VALVES; i++)
      {
        gw.send(msg1valve.setSensor(i).set(false), false);
      }
      state = CYCLE_COMPLETE;
      startMillis = millis();
      DEBUG_PRINT(F("State = "));
      DEBUG_PRINTLN(state);
    }
    lastTimeRun = now();
  }
  else if (state == CYCLE_COMPLETE)
  {
    if (millis() - startMillis < 30000UL)
    {
      fastToggleLed();
    }
    else
    {
      state = STAND_BY_ALL_OFF;
    }
  }
  else if (state = ZONE_SELECT_MENU)
  {
    displayMenu();
  }
  lastState = state;
}
//
void displayMenu(void)
{
  static byte lastMenuState = -1;
  static int lastSecond;
  if (menuState != lastMenuState)
  {
    lcd.clear();
    lcd.setCursor(0, 0);
    lcd.print(valveNickName[menuState]);
    lcd.setCursor(0, 1);
    lcd.print(F("Starting"));
    DEBUG_PRINT(valveNickName[menuState]);
    Serial.print(F(" Starting Shortly"));
  }
  int thisSecond = (millis() - menuTimer) / 1000UL;
  if (thisSecond != lastSecond && thisSecond < 8)
  {
    lcd.print(F("."));
    Serial.print(".");
  }
  lastSecond = thisSecond;
  if (millis() - menuTimer > 10000UL)
  {
    startMillis = millis();
    if (menuState == 0)
    {
      valveNumber = 1;
      state = RUN_ALL_ZONES;
    }
    else
    {
      valveNumber = menuState;
      state = RUN_SINGLE_ZONE;
    }
  }
  else
  {

  }
  lastMenuState = menuState;
}
//
void updateRelays(int value)
{
  digitalWrite(latchPin, LOW);
  shiftOut(dataPin, clockPin, MSBFIRST, highByte(value));
  shiftOut(dataPin, clockPin, MSBFIRST, lowByte(value));
  digitalWrite(latchPin, HIGH);
}
//
void PushButton() //interrupt with debounce
{
  static unsigned long last_interrupt_time = 0;
  unsigned long interrupt_time = millis();
  if (interrupt_time - last_interrupt_time > 200)
  {
    buttonPushed = true;
  }
  last_interrupt_time = interrupt_time;
}
//
void fastToggleLed()
{
  static unsigned long fastLedTimer;
  if (millis() - fastLedTimer >= 100UL)
  {
    digitalWrite(ledPin, !digitalRead(ledPin));
    fastLedTimer = millis ();
  }
}
//
void slowToggleLED ()
{
  static unsigned long slowLedTimer;
  if (millis() - slowLedTimer >= 1250UL)
  {
    digitalWrite(ledPin, !digitalRead(ledPin));
    slowLedTimer = millis ();
  }
}
//
void getVariables(const MyMessage &message)
{
  boolean zoneTimeUpdate = false;
  if (message.isAck())
  {
    DEBUG_PRINTLN(F("This is an ack from gateway"));
  }
  for (byte i = 0; i <= NUMBER_OF_VALVES; i++)
  {
    if (message.sensor == i)
    {
      if (message.type == V_LIGHT)
      {
        int switchState = atoi(message.data);
        if (switchState == 0)
        {
          state = STAND_BY_ALL_OFF;
          DEBUG_PRINTLN(F("Recieved Instruction to Cancel..."));
        }
        else
        {
          if (i == 0)
          {
            state = RUN_ALL_ZONES;
            valveNumber = 1;
            DEBUG_PRINTLN(F("Recieved Instruction to Run All Zones..."));
          }
          else
          {
            state = RUN_SINGLE_ZONE;
            valveNumber = i;
            DEBUG_PRINT(F("Recieved Instruction to Activate Zone: "));
            DEBUG_PRINTLN(i);
          }
        }
        startMillis = millis();
      }
      else if (message.type == V_VAR1)
      {
        int variable1 = atoi(message.data);// RUN_ALL_ZONES time
        DEBUG_PRINT(F("Recieved variable1 valve:"));
        DEBUG_PRINT(i);
        DEBUG_PRINT(F(" = "));
        DEBUG_PRINTLN(variable1);
        if (variable1 != allZoneTime[i])
        {
          allZoneTime[i] = variable1;

          zoneTimeUpdate = true;
        }
      }
      else if (message.type == V_VAR2)
      {
        int variable2 = atoi(message.data);// RUN_SINGLE_ZONE time
        DEBUG_PRINT(F("Recieved variable2 valve:"));
        DEBUG_PRINT(i);
        DEBUG_PRINT(F(" = "));
        DEBUG_PRINTLN(variable2);
        if (variable2 != valveSoloTime[i])
        {
          valveSoloTime[i] = variable2;
          zoneTimeUpdate = true;
        }
      }
      else if (message.type == V_VAR3)
      {
        String newMessage = String(message.data);
        if (newMessage.length() == 0) 
        {
          DEBUG_PRINT(F("No Name Recieved for zone "));
          DEBUG_PRINTLN(i);
          break;
        }
        if (newMessage.length() > 16)
        {
          newMessage.substring(0, 16);
        }
        valveNickName[i] = "";
        valveNickName[i] += newMessage;
        DEBUG_PRINT(F("Recieved new name for zone "));
        DEBUG_PRINT(i);
        DEBUG_PRINT(F(" and it is now called: "));
        DEBUG_PRINTLN(valveNickName[i]);
      }
    }
  }
  if (zoneTimeUpdate)
  {
    //
    DEBUG_PRINTLN(F("New Zone Times Recieved..."));
    for (byte i = 0; i <= NUMBER_OF_VALVES; i++)
    {
      if (i != 0)
      {
        DEBUG_PRINT(F("Zone "));
        DEBUG_PRINT(i);
        DEBUG_PRINT(F(" individual time: "));
        DEBUG_PRINT(valveSoloTime[i]);
        DEBUG_PRINT(F(" group time: "));
        DEBUG_PRINTLN(allZoneTime[i]);
        recentUpdate = true;
      }
    }
  }
  else
  {
    recentUpdate = false;
  }
}
//
void updateDisplay()
{
  static unsigned long lastUpdateTime;
  static boolean displayToggle = false;
  //static byte toggleCounter = 0;
  static SprinklerStates lastDisplayState;
  if (state != lastDisplayState || millis() - lastUpdateTime >= 3000UL)
  {
    displayToggle = !displayToggle;
    switch (state) {
      case STAND_BY_ALL_OFF:
        //
        fastClear();
        lcd.setCursor(0, 0);
        if (displayToggle)
        {
          lcd.print(F("  System Ready "));
          if (clockUpdating)
          {
            lcd.setCursor(15, 0);
            lcd.write(byte(0));
          }
          lcd.setCursor(0, 1);
          lcd.print(hourFormat12() < 10 ? F(" ") : F(""));
          lcd.print(hourFormat12());
          lcd.print(minute() < 10 ? F(":0") : F(":"));
          lcd.print(minute());
          lcd.print(isAM() ? F("am") : F("pm"));
          lcd.print(month() < 10 ? F(" 0") : F(" "));
          lcd.print(month());
          lcd.print(day() < 10 ? F("/0") : F("/"));
          lcd.print(day());
          lcd.print(F("/"));
          lcd.print(year() % 100);
        }
        else
        {
          lcd.print(F("  Last Watered "));
          if (clockUpdating)
          {
            lcd.setCursor(15, 0);
            lcd.write(byte(0));
          }
          lcd.setCursor(0, 1);
          lcd.print(dayOfWeek[weekday(lastTimeRun)]);
          lcd.setCursor(11, 1);
          lcd.print(month(lastTimeRun) < 10 ? F(" ") : F(""));
          lcd.print(month(lastTimeRun));
          lcd.print(day(lastTimeRun) < 10 ? F("/0") : F("/"));
          lcd.print(day(lastTimeRun));
        }
        break;
      case RUN_SINGLE_ZONE:
        //
        fastClear();
        lcd.setCursor(0, 0);
        if (displayToggle)
        {
          lcd.print(F("Single Zone Mode"));
          lcd.setCursor(0, 1);
          lcd.print(F(" Zone:"));
          if (valveNumber < 10) lcd.print(F("0"));
          lcd.print(valveNumber);
          lcd.print(F(" Active"));
        }
        else
        {
          lcd.print(F(" Time Remaining "));
          lcd.setCursor(0, 1);
          if (valveSoloTime[valveNumber] == 0)
          {
            lcd.print(F(" No Valve Time "));
          }
          else
          {
            unsigned long timeRemaining = (valveSoloTime[valveNumber] * 60) - ((millis() - startMillis) / 1000);
            lcd.print(timeRemaining / 60 < 10 ? "   0" : "   ");
            lcd.print(timeRemaining / 60);
            lcd.print("min");
            lcd.print(timeRemaining % 60 < 10 ? " 0" : " ");
            lcd.print(timeRemaining % 60);
            lcd.print("sec  ");
          }
        }
        break;
      case RUN_ALL_ZONES:
        //
        fastClear();
        lcd.setCursor(0, 0);
        if (displayToggle)
        {
          lcd.print(F(" All-Zone  Mode "));
          lcd.setCursor(0, 1);
          lcd.print(F(" Zone:"));
          if (valveNumber < 10) lcd.print(F("0"));
          lcd.print(valveNumber);
          lcd.print(F(" Active "));
        }
        else
        {
          lcd.print(F(" Time Remaining "));
          lcd.setCursor(0, 1);
          int timeRemaining = (allZoneTime[valveNumber] * 60) - ((millis() - startMillis) / 1000);
          lcd.print((timeRemaining / 60) < 10 ? "   0" : "   ");
          lcd.print(timeRemaining / 60);
          lcd.print("min");
          lcd.print(timeRemaining % 60 < 10 ? " 0" : " ");
          lcd.print(timeRemaining % 60);
          lcd.print("sec  ");
        }
        break;
      case CYCLE_COMPLETE:
        //
        if (displayToggle)
        {
          lcd.setCursor(0, 0);
          lcd.print(F(" Watering Cycle "));
          lcd.setCursor(0, 1);
          lcd.print(F("    Complete    "));
        }
        else
        {
          int totalTimeRan = 0;
          for (int i = 1; i < NUMBER_OF_VALVES + 1; i++)
          {
            totalTimeRan += allZoneTime[i];
          }
          lcd.setCursor(0, 0);
          lcd.print(F(" Total Time Run "));
          lcd.setCursor(0, 1);
          lcd.print(totalTimeRan < 10 ? "   0" : "   ");
          lcd.print(totalTimeRan);
          lcd.print(" Minutes   ");
        }
    }
    lastUpdateTime = millis();
  }
  lastDisplayState = state;
}
void receiveTime(time_t newTime)
{
  DEBUG_PRINTLN(F("Time value received and updated..."));
  int lastSecond = second();
  int lastMinute = minute();
  int lastHour = hour();
  setTime(newTime);
  if (((second() != lastSecond) || (minute() != lastMinute) || (hour() != lastHour)) || showTime)
  {
    DEBUG_PRINTLN(F("Clock updated...."));
    DEBUG_PRINT(F("Sensor's time currently set to:"));
    DEBUG_PRINT(hourFormat12() < 10 ? F(" 0") : F(" "));
    DEBUG_PRINT(hourFormat12());
    DEBUG_PRINT(minute() < 10 ? F(":0") : F(":"));
    DEBUG_PRINT(minute());
    DEBUG_PRINTLN(isAM() ? F("am") : F("pm"));
    DEBUG_PRINT(month());
    DEBUG_PRINT(F("/"));
    DEBUG_PRINT(day());
    DEBUG_PRINT(F("/"));
    DEBUG_PRINTLN(year());
    DEBUG_PRINTLN(dayOfWeek[weekday()]);
    showTime = false;
  }
  else
  {
    DEBUG_PRINTLN(F("Sensor's time did NOT need adjustment greater than 1 second."));
  }
  clockUpdating = false;
}
void fastClear()
{
  lcd.setCursor(0, 0);
  lcd.print(F("                "));
  lcd.setCursor(0, 1);
  lcd.print(F("                "));
}
//
void updateClock()
{
  static unsigned long lastVeraGetTime;
  if (millis() - lastVeraGetTime >= 3600000UL) // updates clock time and gets zone times from vera once every hour
  {
    DEBUG_PRINTLN(F("Requesting time and valve data from Gateway..."));
    lcd.setCursor(15, 0);
    lcd.write(byte(0));
    clockUpdating = true;
    gw.requestTime(receiveTime);
    lastVeraGetTime = millis();
  }
}
//
void saveDateToEEPROM(unsigned long theDate)
{
  DEBUG_PRINTLN(F("Saving Last Run date"));
  if (gw.loadState(0) != 0xFF)
  {
    gw.saveState(0, 0xFF); // EEPROM flag for last date saved stored in EEPROM (location zero)
  }
  //
  for (int i = 1; i < 5; i++)
  {
    gw.saveState(5 - i, byte(theDate >> 8 * (i - 1))); // store epoch datestamp in 4 bytes of EEPROM starting in location one
  }
}
//
void goGetValveTimes()
{
  static unsigned long valveUpdateTime;
  static byte valveIndex = 1;
  if (millis() - valveUpdateTime >= 300000UL / NUMBER_OF_VALVES)// update each valve once every 5 mins (distributes the traffic)
  {
    DEBUG_PRINTLN(F("Calling for Valve Data..."));
    lcd.setCursor(15, 0);
    lcd.write(byte(1)); //lcd.write(1);
    gw.request(valveIndex, V_VAR1);
    gw.request(valveIndex, V_VAR2);
    gw.request(valveIndex, V_VAR3);
    valveUpdateTime = millis();
    valveIndex++;
    if (valveIndex > NUMBER_OF_VALVES + 1)
    {
      valveIndex = 1;
    }
  }
}```

[petewill]

Hey Everyone,

I just made a follow up video to this irrigation controller that shows my logic I'm using to save water. It's pretty specific to my environment but hopefully you can use some of the ideas to save water in your environment. I have attached the logic I used in my PLEG device.

Pete

PLEG Irrigation.pdf

https://youtu.be/_voDZH2EBgw

[epierre]

Hello,

looking at the project, I'm wondering why you propose 3.3V only, is this for the shift register and the screen ? Why not stay in 5V ?

[petewill]

@epierre Where did you see that I don't remember? Perhaps for the NRF radio?

[epierre]

@petewill it is here: http://www.mysensors.org/build/irrigation

it is hard to know the BOM from the page, so I was wondering why you would neeed the powering adaptation if you input 5V

[BulldogLowell]

@epierre

If you watch the video, you can see he's using the voltage regulator to supply power to the radio.

Are you getting ready to build?

[epierre]

@BulldogLowell said:

@epierre
Are you getting ready to build?

I've ordered the 8 switch, I have soil moisture, leaf moisture, ground humidity, rain gauge and found some evapotranspiration algorithm so I have all inputs and now need to have outputs in parallel of my rainbird scheduler (too dumb...)

So I'm ready to build as you say ;-)

[charlybrown]

@hek said:

Added your project to the main site togeter with @petewill excellent new video.

http://www.mysensors.org/build/irrigation

https://youtu.be/l4GPRTsuHkI
Excellent project.
Can you help me with the android code, to send instrucctions from my cell phone to Arduino? like on-off light , bomb, etc.

thanks for your time!
best regards.

[charlybrown]

Excellent work. I need help with android code. Anybody can help me with this?

thanks

[shemmozhipandian]

Hi,

I made the circuit, but later i realize it required vera controller to sync all the data. Is there other way or idea to send data to the built system.

[petewill]

@shemmozhipandian Sorry for the delayed reply. It does require a controller (like Vera) but there are free ones out there. Take a look here: http://www.mysensors.org/controller/

I know Domoticz is free and seems to be fairly popular here. There are others as well. If you find one you like you may want to write a quick post to check compatibility. I personally use Vera so I'm not sure how the others work.

[A Former User]

Hello Pete, thanks for your hard work on this. Superb!
I want to build a irrigation controller like your project but can't figure out hows the wiring. On the wiki an image is shown but I can't see what the connections are in this "virtual proto board"
Is there something clearer or like a pinout to pin list?
I'm using an Arduino Nano, so things will be something different.
Thank you very much.

[petewill]

@Sergio Jim (@BulldogLowell) posted some more details above but here is my fritzing project as well. Hopefully you can zoom in where you need to see more.

Fritzing Irrigation Controller Wiring.fzz

[A Former User]

Mmm... I finally assembled the device. But I'm having problems with it. It doesn't activate/deactivates the relays. I'm getting the power for the relay board from the nano itself. Could that be the problem?
Also, my domoticz doesn't receive the off signal from the controller. (doens't turn the light off) and sometimes throws some error telling that can't contact the node.
BTW I tried to contac Bulldogloweel without success :sob:

[petewill]

@Sergio said:

Mmm... I finally assembled the device. But I'm having problems with it. It doesn't activate/deactivates the relays. I'm getting the power for the relay board from the nano itself. Could that be the problem?

Yes, that is most likely the problem. Most of the relays I have used need more power than what the arduino can supply. Try feeding it more power (like from a phone charger).

Also, my domoticz doesn't receive the off signal from the controller. (doens't turn the light off) and sometimes throws some error telling that can't contact the node.

Check the serial monitor with debug enabled. Does this happen every time? It could be radio issues. Do you have a 4.7uf cap on the radio? Is it close enough to your gateway?

[fusion_man]

@BulldogLowell

I need to add a relay for a master valve. This will open when any zone valves open. I think it could be mapped to All On 0(1) but I am not sure how to accomplish this. I don't know the code for that or electrical connection. I also noticed we are about maxed out of data (99%) using ProMini. Any ideas?

[BulldogLowell]

If you are worried about Program Space you can turn off Serial debug to rid yourself of a bunch of overhead in the sketch. I am not using String class so there is PLENTY of RAM and I've been using this for a while with no stack corruption issues:

#define DEBUG_ON   // comment out to surpress serial monitor output

if you propose to turn ON the master valve when each valve is cycled on, then I believe all you need to do is add that valve to the bitmask (logical OR) each time you updateRelays().

void updateRelays(int value)
{
  if(value)
  {
    value |= 0b0000000010000000;  // master is the eighth relay, there are 7 controlled in this example (active HIGH in this example)
  }
  digitalWrite(latchPin, LOW);
  shiftOut(dataPin, clockPin, MSBFIRST, highByte(value));
  shiftOut(dataPin, clockPin, MSBFIRST, lowByte(value));
  digitalWrite(latchPin, HIGH);
}

not tested

[fusion_man]

@BulldogLowell

By commenting out the DEBUG, it went from 99% to 63% used memory.
The modification to void updateRelays worked very nicely. I only wish the master control valve would remain ON during cycling through each valve (subjected to VALVE_RESET_TIME) as I am using it to control a chemical feed pump to prevent hydrogen proxide (30%) from entering my irrigation system.

Awesome job and I am very pleased with your design.
The only problem I had when building the controller was getting the LCD to communicate.
I added this comment to my program under Instructions.

• If your LCD is unresponsive, download sketch http://forum.arduino.cc/index.php?topic=128635.0 then check serial monitor for LCD address. Insert your address below.

[fusion_man]

@BulldogLowell

I ended up going a different approach. I modified the program so I could use Arduino digital pin6 as an output powering my master valve relay. I then added digitalWrite (masterValvePin, HIGH) where you have updateRelays(BITSHIFT_VALVE_NUMBER) to turn ON the valve. To turn off the valve I added a delay then digitalWrite (masterValvePin, LOW) to if (state == STAND_BY_ALL_OFF). This has tested perfectly for my situation.
The only thing missing from the Controller is the ability to add the RainBird rain sensor to the board. I think the way of achieving this is an input to my Vera controller.

[BulldogLowell]

@fusion_man

maybe we can add a rain sensor this season. It is a good idea to include it.