Basic Arduino Controller for LED Systems

[SaltyDog]

For those of you asking about a simple controller I have made up a shopping list for a basic controller with enclosure and 16x2 LCD that will control the following and leave open 6 extra pins....
2 Temp Sensors (Water and Heatsink)
2 powerheads
1 fan (temp sensor controlled)
1 heater (temp sensor controlled)
1 moonlight (on/off)
1 fuge (on/off)
1 White LEDs
1 Blue LEDs

If your using meanwell drivers you would also need to buy a pkg of 2N2222 Transistors and a 10v DC wallwart to be able to use the 0-5v signal for a 0-10v driver.

Shopping List for basic lighting control

Uno
RTC
Enclosure
Power Supply
Waterproof Temp Sensor
Heatsink Temp Sensor
LCD 16x2 - White on Blue Bkgnd
I2C LCD Controller You will need to download the new Liquidcrystal library from them for this to work.
8 Relay Board 2 powerheads,1 fuge,1 sump, 1 Heater, 1 Fan, 1 moonlight
2-4 - 110 Outlets
1 - 8x7 Radioshack Project Box to hold relays and outlets.
Lots of wires....lol

[SaltyDog]

And Now your Sketch:


#include <OneWire.h>
#include <DallasTemperature.h>
#include "Wire.h" 
#define DS1307_I2C_ADDRESS 0x68 //set rtc
#include <LiquidCrystal.h> // initialize the library with the numbers of the interface pins
#define ONE_WIRE_BUS 9 //Define the pin of the DS18B20
/*|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||  R E L A Y   P A R T  |||||||||||||||||||||||||||||||||||||||||||||||||||||||||*/

const int ledPin1 =  A2;          // pin number for relay 1 was digital pin 2
const int ledPin2 =  A3;          // pin number for relay 2 was digital pin 8
int ledState1 = LOW;             
int ledState2 = LOW; 
long previousMillis1 = 0;        
long previousMillis2 = 0;
long interval1 = 30000;          // interval at which to blink (milliseconds) for RELAY1
long interval2 = 50000;		 // interval at which to blink (milliseconds) for RELAY2


/*|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||  L E D   D I M M I N G   P A R T  |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||*/

int blueramptime = 60 ;    // time for blue LEDs to dim on and off in minutes
int whiteramptime = 120 ;  // time for white LEDs to dim on and off in minutes
int bluemin = 0 ;          // minimmum dimming value of blue LEDs, range of 0-255
int bluemax = 255 ;        // maximum dimming value of blue LEDs, range of 0-255
int whitemin = 0 ;         // minimum dimming value of white LEDs, range of 0-255
int whitemax = 255 ;       // maximum dimming value of white LEDs, range of 0-255
int photoperiod = 360 ;    // amount of time array is on at full power in minutes
int ontime = 10 ;          // time of day (hour, 24h clock) to begin photoperiod fade in
int blue = 10;              // blue LEDs connected to digital pin 3 (pwm)
int white = 11;            // white LEDs connected to digital pin 11 (pwm)
int fan = A0;            // Fan power relay connected to analog pin 0
int fuge = 4;            // fuge light power relay connected to analog pin 1
int moon = 3;            // moon light connected to digital pin 3
int heater = A1;



int bluepercent[11] = { 0, 1, 2, 5, 8 ,12, 18, 27, 44, 80, 255 };   // this line is needed if you are using meanwell ELN60-48D
int whitepercent[11] = { 0, 1, 2, 5, 8 ,12, 18, 27, 44, 80, 255 };   // these are the values in 10% increments

//int bluepercent[11] = { 0, 26, 52, 78, 103, 128, 154, 180, 205, 230, 255 };   // this line is needed if you are using meanwell ELN60-48P
//int whitepercent[11] = { 0, 26, 52, 78, 103, 128, 154, 180, 205, 230, 255 };   // these are the values in 10% increments

//int pwm_one = 9;        // extra pwm pin for future use

// Connect via i2c, default address #0 (A0-A2 not jumpered)
LiquidCrystal lcd(0);

                                         
//  Set up the custom fish icon
byte newChar[8] = {
	B00000,
	B00000,
	B10001,
	B11011,
	B11111,
	B11111,
	B11001,
	B10000
};

byte newChar1[8] = {
	B00001,
	B00010,
	B11101,
	B11010,
	B11111,
	B11110,
	B11100,
	B00000
};
byte newChar2[8] = {
	B00000,
	B00000,
	B10001,
	B11011,
	B11111,
	B11111,
	B10011,
	B00001
};
byte newChar3[8] = {
	B10000,
	B01000,
	B10111,
	B01011,
	B11111,
	B01111,
	B00111,
	B00000
};
byte newChar4[8] = {
	B00111,
	B01110,
	B11100,
	B11000,
	B11000,
	B11100,
	B01110,
	B00111
};
byte newChar5[8] = {
	B01010,
	B10000,
	B00010,
	B01001,
	B00100,
	B10000,
	B00100,
	B10001
};
byte newChar6[8] = {
	B01010,
	B00100,
	B00001,
	B11011,
	B00011,
	B00001,
	B01000,
	B10010
};
byte newChar7[8] = {
	B10010,
	B00100,
	B10000,
	B11011,
	B11000,
	B10000,
	B00010,
	B01001
};

// Setup a oneWire instance to communicate with any OneWire devices (not just Maxim/Dallas temperature ICs)
OneWire oneWire(ONE_WIRE_BUS);

// Pass our oneWire reference to Dallas Temperature. 
DallasTemperature sensors(&oneWire);

/*|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||  R T C   C L O C K   D S 1 3 0 7  |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||*/



byte decToBcd(byte val)    // Convert normal decimal numbers to binary coded decimal
{
  return ( (val/10*16) + (val%10) );
}


byte bcdToDec(byte val)    // Convert binary coded decimal to normal decimal numbers
{
  return ( (val/16*10) + (val%16) );
}

// 1) Sets the date and time on the ds1307
// 2) Starts the clock
// 3) Sets hour mode to 24 hour clock
// Assumes you're passing in valid numbers
void setDateDs1307(byte second, // 0-59
byte minute, // 0-59
byte hour, // 1-23
byte dayOfWeek, // 1-7
byte dayOfMonth, // 1-28/29/30/31
byte month, // 1-12
byte year) // 0-99
{
  Wire.beginTransmission(DS1307_I2C_ADDRESS);
  Wire.send(0);
  Wire.send(decToBcd(second)); // 0 to bit 7 starts the clock
  Wire.send(decToBcd(minute));
  Wire.send(decToBcd(hour));   // If you want 12 hour am/pm you need to set
  // bit 6 (also need to change readDateDs1307)
  Wire.send(decToBcd(dayOfWeek));
  Wire.send(decToBcd(dayOfMonth));
  Wire.send(decToBcd(month));
  Wire.send(decToBcd(year));
  Wire.endTransmission();
}

// Gets the date and time from the ds1307
void getDateDs1307(byte *second,
byte *minute,
byte *hour,
byte *dayOfWeek,
byte *dayOfMonth,
byte *month,
byte *year)
{
  // Reset the register pointer
  Wire.beginTransmission(DS1307_I2C_ADDRESS);
  Wire.send(0);
  Wire.endTransmission();

  Wire.requestFrom(DS1307_I2C_ADDRESS, 7);

  // A few of these need masks because certain bits are control bits
  *second = bcdToDec(Wire.receive() & 0x7f);
  *minute = bcdToDec(Wire.receive());
  *hour = bcdToDec(Wire.receive() & 0x3f); // Need to change this if 12 hour am/pm
  *dayOfWeek = bcdToDec(Wire.receive());
  *dayOfMonth = bcdToDec(Wire.receive());
  *month = bcdToDec(Wire.receive());
  *year = bcdToDec(Wire.receive());
}



/*|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||  D E F I N E  :  O N E S E C O N D |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||*/



void onesecond() //function that runs once per second while program is running
{
  byte second, minute, hour, dayOfWeek, dayOfMonth, month, year;
  getDateDs1307(&second, &minute, &hour, &dayOfWeek, &dayOfMonth, &month, &year);
  lcd.setCursor(0, 0);
  if(hour>0)
  {
    if(hour<=12)
    {
      lcd.print(hour, DEC);
    }
    else
    {
      lcd.print(hour-12, DEC);
    }
  }
  else
  {
    lcd.print("12");
  }
  lcd.print(":");
  if (minute < 10) {
    lcd.print("0");
  }
  lcd.print(minute, DEC);
  //lcd.print(":");
  //if (second < 10) {
  //  lcd.print("0");
  //}
  //lcd.print(second, DEC);
  if(hour<12)
  {
    lcd.print("am");
  }
  else
  {
    lcd.print("pm");
  }
  //lcd.print(" ");
  delay(1000);
}


/*|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||  D E F I N E  :  F A N S   O N |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||*/
void FansOn()
{
  digitalWrite(fan, HIGH);  
  //analogWrite(fan, 255);
    
}
/*|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||  D E F I N E  :  F A N S   O F F |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||*/
void FansOff()
{
  digitalWrite(fan, LOW);
    //analogWrite(fan, 0);
    
}
/*|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||  D E F I N E  :  F U G E  L I G H T  O N |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||*/
void FugeOn()
{
  digitalWrite(fuge, HIGH);  

    
}
/*|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||  D E F I N E  :  F U G E  L I G H T   O F F |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||*/
void FugeOff()
{
  digitalWrite(fuge, LOW);
   
    
}
/*|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||  D E F I N E  :  M O O N  L I G H T  O N |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||*/
void MoonOn()
{
  digitalWrite(moon, HIGH);  
  lcd.setCursor(8, 0);
  lcd.write(4);
  lcd.write(5);
  
    
}
/*|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||  D E F I N E  :  M O O N  L I G H T   O F F |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||*/
void MoonOff()
{
  digitalWrite(moon, LOW);
  lcd.setCursor(8, 0);
  lcd.write(6);
  lcd.write(7);
   
    
}

/*|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||  D E F I N E  :  R E L A Y 1 |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||*/




void relay1()  //FUNCTION TO TURN ON AND OFF RELAY 1.
{ 
  unsigned long currentMillis = millis();

  if(currentMillis - previousMillis1 > interval1) 
  { 
    previousMillis1 = currentMillis;   
    if (ledState1 == LOW)
      ledState1 = HIGH;
    else
      ledState1 = LOW;
    digitalWrite(ledPin1, ledState1);
  }
}



/*|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||  D E F I N E  :  R E L A Y 2 |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||*/




void relay2()
{
  unsigned long currentMillis2 = millis();

  if(currentMillis2 - previousMillis2 > interval2) 
  {
    previousMillis2 = currentMillis2;   
    if (ledState2 == LOW)
      ledState2 = HIGH;
    else
      ledState2 = LOW;
    digitalWrite(ledPin2, ledState2);
  }
}




/*|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||  S E T U P  |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||*/


void setup() {
  pinMode(ledPin1, OUTPUT);    // set the digital pin as output:
  pinMode(ledPin2, OUTPUT);    // set the digital pin as output:
  pinMode(fan, OUTPUT);      // Set analog pin 0 as a output
  pinMode(fuge, OUTPUT);      // Set analog pin 1 as a output
  pinMode(moon, OUTPUT);      // Set analog pin 3 as a output
  pinMode(heater, OUTPUT);
  pinMode(fan, OUTPUT);
  sensors.begin();             // Start up the DS18B20 Temp library

[SaltyDog]

  /*|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||  S E T U P - D I S P L A Y |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||*/



  byte second, minute, hour, dayOfWeek, dayOfMonth, month, year;
  Wire.begin();

  // Change these values to what you want to set your clock to.
  // You probably only want to set your clock once and then remove
  // the setDateDs1307 call.
  second = 00;
  minute = 15;
  hour = 23;
  dayOfWeek = 25;  // Sunday is 0
  dayOfMonth = 4;
  month = 4;
  year = 11;
  
  //Use the next line for setting the clock
  setDateDs1307(second, minute, hour, dayOfWeek, dayOfMonth, month, year);

  analogWrite(blue, bluemin);
  analogWrite(white, whitemin);
  lcd.createChar(0, newChar);
  lcd.createChar(1, newChar1);
  lcd.createChar(2, newChar2);
  lcd.createChar(3, newChar3);
  lcd.createChar(4, newChar4);
  lcd.createChar(5, newChar5);
  lcd.createChar(6, newChar6);
  lcd.createChar(7, newChar7);
  lcd.begin(20, 4); // set up the LCD's number of rows and columns: 
  lcd.setCursor(0, 0);
  lcd.setCursor(0, 0);
  lcd.write(0);
  lcd.write(1);
  lcd.setCursor(3, 0);// set the cursor to column 0, line 0
  lcd.print("My Marine Tank");
  lcd.setCursor(18, 0);
  lcd.write(3);
  lcd.write(2);
  lcd.setCursor(4, 1);
  lcd.print("Version 1.01");
  delay(5000);
  lcd.clear();
  //lcd.setCursor(7, 1);
  //lcd.print("M:");
  lcd.setCursor(11, 0);
  lcd.print("B:");
  lcd.print(33*bluemin/85);
  lcd.setCursor(16, 0);
  lcd.print("W:");
  lcd.print(33*whitemin/85);
  lcd.setCursor(11, 1);
  lcd.print("L: ");
  lcd.setCursor(0, 1);
  lcd.print("W: ");

 
}




/*|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||  L O O P |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||*/




void loop()
{
  onesecond();
  relay2();
  relay1();





  /*|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||  L O O P - D I M   F U N C T I O N |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||*/

  byte second, minute, hour, dayOfWeek, dayOfMonth, month, year;
  getDateDs1307(&second, &minute, &hour, &dayOfWeek, &dayOfMonth, &month, &year);
  int daybyminute = ((hour * 60) + minute); //converts time of day to a single value in minutes
      

  int bluerampup;
     if (daybyminute >= (ontime*60)) 
       bluerampup = (((ontime*60) + blueramptime) - daybyminute);
     else
       bluerampup = blueramptime;
       
  int whiterampup;
    if (daybyminute >= (ontime*60 + blueramptime)) 
       whiterampup = (((ontime*60) + blueramptime + whiteramptime) - daybyminute);
     else
       whiterampup = whiteramptime;

  int whiterampdown;
    if (((ontime * 60) + photoperiod + blueramptime + whiteramptime) <= daybyminute)
      whiterampdown = (((ontime*60) + photoperiod + blueramptime + 2*whiteramptime) - daybyminute);
    else
      whiterampdown = whiteramptime;
      
  int bluerampdown;
    if (((ontime * 60) + photoperiod + blueramptime + 2*whiteramptime) <= daybyminute)
      bluerampdown = (((ontime*60) + photoperiod + 2*blueramptime + 2*whiteramptime) - daybyminute);
    else
      bluerampdown = blueramptime;






  /*|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||  L O O P - F A D E  I N |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||*/


 if (daybyminute >= (ontime*60))
  { 
    if (daybyminute <= ((ontime*60) + blueramptime + (whiteramptime/10*9))) //if time is in range of fade in, start fading in + (whiteramptime/10*9)
    {
      // Turn the fans on.
      FansOn();
      // Turn the fuge off.
      FugeOff();
      // Turn the moon lights off.
      MoonOff();
      // fade blue LEDs in from min to max.
      
      for (int i = 1; i <= 10; i++) // setting ib value for 10% increment. Start with 0% 
      { 
        analogWrite(blue, bluepercent[i]); 
        lcd.setCursor(13, 1);
        lcd.print(i);
        lcd.print(" "); 
      
        int countdown = ((bluerampup*60)/10); // calculates seconds to next step
        while (countdown>0)
          {
          onesecond(); // updates clock once per second
          countdown--;
          relay2();
          relay1();
        }
      }      

      // fade white LEDs in from min to max.
      for (int i = 1; i <= 10; i++) // setting i value for 10% increment. Start with 0%
      { 
        analogWrite(white, whitepercent[i]); 
        lcd.setCursor(18, 1);
        lcd.print(i);
        lcd.print(" "); 

        int countdown = ((whiterampup*60)/10); // calculates seconds to next step
        while (countdown>0)
        {
          onesecond(); // updates clock once per second
          countdown--;
          relay2();
          relay1();
        }
      } 
    }
  }


  /*|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||  L O O P - M A X  V A L U E |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||*/



 if (daybyminute >= ((ontime * 60) + blueramptime + whiteramptime)) 
  { 
    if ( daybyminute < ((ontime * 60) + blueramptime + whiteramptime + photoperiod)) // if time is in range of photoperiod, turn lights on to maximum fade value
    {
      // Turn the fans on.
      FansOn();
      // Turn the fuge off.
      FugeOff();
      // Turn the moon lights off.
      MoonOff();
      
      analogWrite(blue, 255);
        lcd.setCursor(13, 1);
        lcd.print(10);
        lcd.print(" ");
      analogWrite(white, 255); 
        lcd.setCursor(18, 1);
        lcd.print(10);
        lcd.print(" "); 
      
    } 
  }



  /*|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||  L O O P - F A D E  O U T |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||*/



  if (((ontime * 60) + photoperiod + blueramptime + whiteramptime) <= daybyminute)
  { 
    if (((ontime * 60) + photoperiod + whiteramptime + 2*blueramptime + (blueramptime/10*9)) >= daybyminute)
    {
      // Turn the fans on.
      FansOn();
      // Turn the fuge off.
      FugeOff();
      // Turn the moon lights off.
      MoonOff();
      
      // fade white LEDs out from max to min in increments of 1 point:
      for (int i = 10; i >= 0; i--) // setting i value for 10% increment. Start with 10%
      { 
        analogWrite(blue, 255);
        lcd.setCursor(13, 1);
        lcd.print(10);
        lcd.print(" "); 
        
        analogWrite(white, whitepercent[i]); 
        lcd.setCursor(18, 1);
        lcd.print(i);
        lcd.print(" ");  

        int countdown = ((whiterampdown*60)/10); // calculates seconds to next step
        while (countdown>0)
        {
          onesecond(); // updates clock once per second
          countdown--;
          relay2();
          relay1();
        }

      } 

      // fade blue LEDs out from max to min in increments of 1 point:
      for (int i = 10; i >= 0; i--) // setting i value for 10% increment. Start with 10%
      { 
        analogWrite(blue, bluepercent[i]);
        lcd.setCursor(13, 1);
        lcd.print(i);
        lcd.print(" "); 

        int countdown = ((bluerampdown*60)/10); // calculates seconds to next step
        while (countdown>0)
        {
          onesecond(); // updates clock once per second
          countdown--;
          relay2();
          relay1();
        }
      }
    }
  }

// DS18B20 display
sensors.requestTemperatures(); // Send the command to get temperatures
delay(250);
float temp1=0, temp2=0;
  // (note: line 1 is the second row, since counting begins with 0):
  lcd.setCursor(13, 1);

  //lcd.print("Led Temp:");
  lcd.print(sensors.getTempFByIndex(1)); 
  lcd.print((char)223);
  lcd.print("F");
 
  lcd.setCursor(2, 1);
  //lcd.print("Tank Temp: ");
  lcd.print(sensors.getTempFByIndex(0)); 
  lcd.print((char)223);
  lcd.print("F");
  
  if ( (temp1) > 98)
    {
    digitalWrite(fan, HIGH);
    }
else if ( (temp1) < 92)
    {
    digitalWrite(fan, LOW);
    }

if ( (temp2) < 78 )
    {
    digitalWrite(heater, HIGH);
    }
else if ( (temp2) > 82 )
    {
    digitalWrite(heater, LOW);
    }
   
//  lcd.print(sensors.getTempCByIndex(0));
//  lcd.print((char)223); 
//  lcd.print("C");
  
  //delay(500);
  //*|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||  Night Time |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||*/

if (((ontime * 60) + photoperiod + (2 * blueramptime) + (2 * whiteramptime)) < daybyminute)
  {         
      
    FansOff();
    FugeOn();
    MoonOn();
  }

  
}  // END LOOP

[Corvette Reefer]

thats pretty sweet!!! looks super comlicated, but iv been thinking about somthing to use thats simple for led system

[SaltyDog]

This unit will give you a 0-5v PWM for CAT4101 Drivers or buckpucks.....if your going with meanwells or any other LED driver that requires a 0-10vPWM signal follow the guidelines in the attached pic.Make sure the 12v power supply is under 600mA.

[Dan_cochran]

SaltyDog,, I almost have my build done, but running into a few issues with he code i was using.

my screen scroll works, temps works, clock works, relay 1 and 2 shut on and off, 3 and 4 don't do anything?
I will test the led ramp up and down i hope today, I have three 48p drivers, no pots. 24 rb cree , 12 white cree.

The moon and sump light I was wanting on the same outlet, and fans to be temp controlled on another out let.
4 relays, 4 outlets

the code i have has the \ph, and orp
But I do not plan on building the sensors any time soon.

ebay parts, all from same seller
I have the ebay uno with 16x2 and buttons
4 relay 5v
rtc
2 temp sensors

all the other odd and end parts i went to radio shack.

but like i said, So far I am at a loss on why the last 2 relays do not come on, if i swap channels they will.
Thats why I think its the code.

If you can help, just let me know and i will post what pins i have what on, and the code i have.
I will play with the code you have posted, just to see if i have any luck

[firefightered]

I to am building one of these controllers but it looks like this one has been abandoned. where did everyone go? I need help......

[RedfordReefer]

What do you need help with?

[firefightered]

I'm, looking for the pin placements for the LCD. I have a 5 button 16x2 LCD and cannt figure out the pin placements. Can you help?

[RedfordReefer]

Yeah. Let me look at the code. I'll have to decipher the Arduino code. It'll take me a bit.