Meanwell LED controller

[RockyBoy]

After a few weeks of coding, hardwiring, finally made my controller from scratch.

My DIY controller is for

1) dimming the blues and the whites based on timinngs

2) moonlight based on days, towards the mid-month, would be the brightest

3) measure temperatures for my 2 LED heatsinks, if hit certain temperature that I think is too high, the LEDs intensity will be powered down less than 40% for abt 20 minutes to cool down. The overheat condition is to anticipate if the heatsink fans are not working, or ambient temperature is too high.

4)switching on/off the heatsink fans when the LED is siwtched on/off.

5)Added 2 buttons, white and blue, if pressed any one of them, let say blue button, will shut down the white LEDs and switch on the blues. Just for demo purposes.

[RockyBoy]

Internal wirings... very messy...

[RockyBoy]

Fan is controlled using arduino to this solid state relay which can be triggered at 5V to 24V.

[RockyBoy]

From the top.

20x4 LCD display using serial connection to the arduino.

The on/off button is to switched on/off the LCD backlight.

The 2 buttons below is to manual on the blue lights or the white lights.

[RockyBoy]

LCD closeup.

[RockyBoy]

I used this circuit to boost up the output of the arduino to 10V for the meanwell PWM dimming input.

[RockyBoy]

My crappy arduino sketch:

#include <avr/io.h> 

#include <stdlib.h> 

#include <Wire.h>


/*LCD CONTROL

CONTROL CHARACTER DECIDED BY INTERNAL OPERATION OF 

ATTINY2313 SPI LCD / RS232 CONTROLLER

T0 SEND CONTROL CHARACTERS.

     Serial.write(CR);

     Serial.write(CD);

         OR

     Comm (CD,0)  (0 for SPI and 1 for RS232)


SEND ASCII 250 AND THEN ANY CONTROL CHARACTER  */


#define CR 250  //TO ACCESS CONTROL REGISTER


/*SEE PAGE 191,192,193 OF HITACHI LCD CONTROLLER HD44780 DATSHEET

0 0 0 0 0 0 0 1   */

#define CD 1    //CLEAR DISPLAY 


//1 ADD ADD ADD ADD ADD ADD ADD

#define L1 0X80   //ROW 0 COL 0

#define L2 0XC0   //ROW 1 COL 0

#define L3 0x94    //ROW 2 COL 0

#define L4 0xD4    //ROW 3 COL 0


// 0 0 0 0 1 D C B

#define CBY 0X0F   //CURSOR ON BLINK ON 00001DCB

#define CBN 0X0C   //CURSOR 0FF BLINK 0FF


#define SCK 13

#define MISO 12

#define MOSI 11

#define RESET 10


//#define START_H 8  // Clock start of PWM light

int START_H=11;

//#define STOP_H 14  // Clock stop PWM light

int STOP_H=23;

int value = 0;     // variable to keep the actual value  

int White = 9;  // White LEDs

int Blue = 3;  // Blue LEDs

int Moon = 5; //Moonlight

int fans = 8; // Fan

int moonVals[31] = {5, 5, 5, 5, 10, 20, 60, 70, 80, 90, 110, 130, 180, 250, 180, 130, 110, 90, 80, 70, 60, 50, 40, 30, 20, 20, 10, 10, 10, 10, 10}; 


int stepper1;

int stepper2;

int lights_fade_time = 1;

int buttonwhite;

int buttonblue;


int temp1 = 0; // temperature variables

int temp2 = 0;

int temp3 = 0;

int sample1[20]; 

int sample2[20];

int range; //temp range

int i;

int alarm1a=0;

int alarm1val=0;

int aval1;

int aval2;

int RCByte;

int TCByte = 0xff; 

int mv = 0;

int tog = 0;

char c[30];

char *MONTH[]={"Jan", "Feb", "Mar", "Apr", "May", "Jun", "Jul", "Aug", "Sep", "Oct", "Nov", "Dec"};

char *DAYS[]={"Sun","Mon","Tue","Wed","Thu","Fri","Sat"};

//clock setup


#define clockAddress 0x68  // This is the I2C address

// RTC variables 

byte second, rtcMins, oldMins, rtcHrs, oldHrs, dayOfWeek, dayOfMonth, month, year, psecond;


/***** RTC Functions *******/ 

/***************************/ 

// Convert normal decimal numbers to binary coded decimal 

byte decToBcd(byte val) 

{ 

  return ( (val/10*16) + (val%10) ); 

} 


// Convert binary coded decimal to normal decimal numbers 

byte bcdToDec(byte val) 

{ 

  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)); 

//   Wire.send(decToBcd(minute)); 

//   Wire.send(decToBcd(hour)); 

//   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) 

{ 

  Wire.beginTransmission(clockAddress); 

  Wire.send(0); 

  Wire.endTransmission(); 


  Wire.requestFrom(clockAddress, 7); 


  *second     = bcdToDec(Wire.receive() & 0x7f); 

  *minute     = bcdToDec(Wire.receive()); 

  *hour       = bcdToDec(Wire.receive() & 0x3f); 

  *dayOfWeek  = bcdToDec(Wire.receive()); 

  *dayOfMonth = bcdToDec(Wire.receive()); 

  *month      = bcdToDec(Wire.receive()); 

  *year       = bcdToDec(Wire.receive()); 

} 



void setup()                    

{

   Wire.begin();

  Serial.begin(57600);



 pinMode(6,OUTPUT);

 pinMode(7,OUTPUT);

  // following delays may not work on all targets...

  pinMode(RESET, OUTPUT);

  digitalWrite(RESET, LOW);

  delay(50);

  digitalWrite(RESET, HIGH);

  delay(50);

  pinMode(SCK, OUTPUT);

  //digitalWrite(SCK, LOW);

  pinMode(MISO, INPUT);

  pinMode(MOSI, OUTPUT);


  spi_init();

  //pinMode(9,OUTPUT);

 //digitalWrite(9,LOW);

 //digitalWrite(10,LOW);

 //delay(50);

 //pinMode(10,INPUT);

 //digitalWrite(10,HIGH);

 // myspi.init();

 digitalWrite(6,LOW);

 LCD_Reset(0);

 digitalWrite(6,HIGH);

 digitalWrite(7,LOW);

 LCD_Reset(0);

 digitalWrite(7,HIGH);

 LCD_Reset(1);


 pinMode(2,INPUT); //button for white

 pinMode(4,INPUT); //button for blue

 digitalWrite(2,LOW);

 digitalWrite(4,LOW);

 pinMode(Blue,OUTPUT);

 pinMode(White,OUTPUT);

 pinMode(Moon,OUTPUT);

 pinMode(fans,OUTPUT);

}




void loop()                     // run over and over again

{

  if(tog==0){

   digitalWrite(7,HIGH);

   digitalWrite(6,LOW);

   tog = 1; }

  else{

   digitalWrite(7,LOW);

   digitalWrite(6,HIGH);

   tog = 0; 

  }


   spi_send(CR);  //  | Alternate |

   spi_send(L1);  //  | Comm(CD)  |



   Serial.write(CR);

   Serial.write(L1);

 // Getting clock data


  getDateDs1307(&second, &rtcMins, &rtcHrs, &dayOfWeek, &dayOfMonth, &month, &year);  


 sprintf(c,"%2.2u:%2.2u  %s %2.2u,%s'%2.2u",rtcHrs,rtcMins,DAYS[dayOfWeek-1

 ],dayOfMonth,MONTH[month-1],year);

     Serial.print(c);

   spi_trans(c);   


    spi_send(CR);

   spi_send(L2);

 Serial.write(CR);

 Serial.write(L2);


for(i = 0;i<=19;i++){ // gets 20 samples of temperature


  sample1[i] = ( 5.0 * analogRead(2) * 100.0) / 1023.0;// to change to analogRead(0

  temp1 = temp1 + sample1[i];

  sample2[i] = ( 5.0 * analogRead(2) * 100.0) / 1023.0;

  temp2 = temp2 + sample2[i];

  delay(50);


  }



temp1 = temp1/20.0; // better precision

temp2 = temp2/20.0; // better precision

   sprintf(c,"HS1=%u%cC HS2=%u%cC ",temp1,0xdf,temp2,0xdf);


 Serial.print(c);

  spi_trans(c);


    //White PWM starts here


  if (temp1 < 69){    //check LED temperature


  if (rtcHrs == START_H && rtcHrs < (START_H + lights_fade_time)){

    if (rtcMins >= 0 && rtcMins <= 30) {stepper1 = map(rtcMins,0,30,0,255);}

     analogWrite(White,stepper1);

  digitalWrite(fans,HIGH);

  analogWrite(Moon,0);  

  }else if(rtcHrs>= (START_H + lights_fade_time) && rtcHrs < (STOP_H - lights_fade_time)){

    digitalWrite(fans,HIGH);

    analogWrite(Moon,0);

    stepper1 = 255;

    analogWrite(White,stepper1);

  }else if(rtcHrs == (STOP_H - lights_fade_time)&& rtcHrs < STOP_H){

      if (rtcMins >= 0 && rtcMins <= 30) {stepper1 = map(rtcMins,0,30,255,0);}

    digitalWrite(fans,HIGH);

    analogWrite(White,stepper1); 

   analogWrite(Moon, moonVals[dayOfMonth-1]); 

  }else if(rtcHrs <START_H || rtcHrs >= STOP_H && rtcHrs <=23){

    digitalWrite(fans,LOW);

    stepper1 = 0;

    analogWrite(White,stepper1);

    analogWrite(Moon, moonVals[dayOfMonth-1]);

  }

  spi_send(CR);

  spi_send(L3);

  Serial.write(CR);

  Serial.write(L3);

    sprintf(c,"Whites = %3u%%",100*stepper1/255);

  Serial.print(c);

  spi_trans(c);


  }else if (temp1 > 70){

  stepper1 = 150;

  analogWrite(White,stepper1);

  digitalWrite(fans,HIGH);

  spi_send(CR);

  spi_send(L1);

   Serial.write(CR);

   Serial.write(L1);

    sprintf(c,"**High Temperature**");

    Serial.print(c);

    spi_trans(c);

  spi_send(CR);

  spi_send(L3);

   Serial.write(CR);

   Serial.write(L3);

    sprintf(c,"Whites = %3u%%",100*stepper1/255);

    Serial.print(c);

    spi_trans(c);

    delay(200000);

}


    //Blue PWM starts here


    if (temp2 < 69){  //check LED temperatures


  if (rtcHrs == START_H && rtcHrs < (START_H + lights_fade_time)){

    if( rtcMins >= 30 && rtcMins <= 60) {stepper2 = map(rtcMins/2,15,30,0,255);}

     analogWrite(Blue,stepper2);

  digitalWrite(fans,HIGH);  

  }else if(rtcHrs>= (START_H + lights_fade_time) && rtcHrs < (STOP_H - lights_fade_time)){

    digitalWrite(fans,HIGH);

    stepper2 = 255;

    analogWrite(Blue,stepper2);

  }else if(rtcHrs == (STOP_H - lights_fade_time)&& rtcHrs < STOP_H){

      if (rtcMins >=30 && rtcMins <=60) {stepper2 = map(rtcMins/2,15,30,255,0);}

    digitalWrite(fans,HIGH);

    analogWrite(Blue,stepper2);  

  }else if(rtcHrs <START_H || rtcHrs >= STOP_H && rtcHrs <=23){

    digitalWrite(fans,LOW);

    stepper2 = 0;

    analogWrite(Blue,stepper2);

  }

  spi_send(CR);

  spi_send(L4);

  Serial.write(CR);

 Serial.write(L4);

    sprintf(c,"Blues  = %3u%%",100*stepper2/255);

  Serial.print(c);

  spi_trans(c);


    }else if (temp2 > 70){

  stepper2 = 150;

  analogWrite(Blue,stepper2);

  digitalWrite(fans,HIGH);

  spi_send(CR);

  spi_send(L1);

   Serial.write(CR);

   Serial.write(L1);

    sprintf(c,"**High Temperature**");

    Serial.print(c);

    spi_trans(c);

  spi_send(CR);

  spi_send(L4);

   Serial.write(CR);

   Serial.write(L4);

    sprintf(c,"Blues  = %3u%%",100*stepper2/255);

    Serial.print(c);

    spi_trans(c);

    delay(200000);

}



   delay(500); 

   spi_send(CR);

   spi_send(CBN); 



   buttonwhite = digitalRead(2);

   buttonblue = digitalRead(4);

   if(buttonwhite == HIGH){

     analogWrite(fans,255);

     analogWrite(Blue,0);

     analogWrite(White,255);

     spi_send(CR);

  spi_send(L3);

   Serial.write(CR);

   Serial.write(L3);

    sprintf(c,"Whites = %3u%%",100);

    Serial.print(c);

    spi_trans(c);

    spi_send(CR);

  spi_send(L4);

   Serial.write(CR);

   Serial.write(L4);

    sprintf(c,"Blues  = %3u%%",0);

    Serial.print(c);

    spi_trans(c);

      delay(20000);} 

     else if (buttonblue == HIGH){

       analogWrite(fans,255);

       analogWrite(White,0);

       analogWrite(Blue,255);

            spi_send(CR);

  spi_send(L3);

   Serial.write(CR);

   Serial.write(L3);

    sprintf(c,"Whites = %3u%%",0);

    Serial.print(c);

    spi_trans(c);

    spi_send(CR);

  spi_send(L4);

   Serial.write(CR);

   Serial.write(L4);

    sprintf(c,"Blues  = %3u%%",100);

    Serial.print(c);

    spi_trans(c);

       delay(20000);}

   /*



*/




   //digitalWrite(6,HIGH);

   //digitalWrite(7,LOW);

   ////BLINK LED CONNECTED TO ATTINY2313 SPI OPTOISOLATED I/O BOARD

  //for (int i=0; i <= 5; i++){


   //TCByte = 0;

   //RCByte = myspi.Transmit(TCByte);

   //delay(500);  


   //TCByte = 0XFF;

   //RCByte = myspi.Transmit(TCByte);


   //delay(500);  

   //}




}


void LCD_Reset(uint8_t inter) //inter is for interface: 0 for SPI: 1 for RS232

{

 Comm(0b00110000,inter);

 delay(5);

 Comm(0b00110000,inter);

 delayMicroseconds(100); 

 Comm(0b00110000,inter);

 Comm(0b00111000,inter); 

 Comm(0b00001100,inter);

 Comm(0b00000001,inter); 

 Comm(0b00000110,inter); 


}


void Comm(uint8_t mval, uint8_t inter){

   if (inter == 0){  

   spi_send(CR);

   spi_send(mval);  }

  if (inter == 1){  

   Serial.write(CR);

   Serial.write(mval);  

}

}


void spi_init() {

  uint8_t x;

  SPCR = 0x53;

  x=SPSR;

  x=SPDR;

}

void spi_wait() {

  do {

  } 

  while (!(SPSR & (1 << SPIF)));

}


uint8_t spi_send(uint8_t  {

  uint8_t reply;

  SPDR=b;

  spi_wait();

  reply = SPDR;

  delay(2);//very importent for the LCD board to process

  return reply;


}

uint8_t spi_trans(const char *str) 

 {

  while (*str)

    spi_send(*str++);

}

[/code]

[wilsontantw]

Awesome!

[RockyBoy]

Awesome!

Qute fun DIYing...

Also thanks to bro GP2700 for some programming tips.

[peacemaker]

Pro-ness~

Mind sharing how much did you spend on this baby?

[RockyBoy]

Just for your info, I'm using clone arduino board and serial LCD controller at very good price at Ebay.

Website : http://stores.ebay.com/AVRMEGASHOP

[RockyBoy]

Pro-ness~

Mind sharing how much did you spend on this baby?

Not pro la...

Not more than $120, it think.

Costs for the items:

the solid state relay at $20,

LCD $23,

arduino $17,

LCD controller $10,

clock $28,

components like transistor, resistor, box abt $20++ or less.

I would add more features such as internet, but too costly, at $70 I think.

[Terryz_]

:welldone:

[RockyBoy]

:welldone:

Thanks bro.

If got time, I will improve on my arduino sketch.

[cjh]

may i know what did you use to do the programing?? C++?

[sherman]

[Thexder]

Good work bro!

I'm too busy with work now, my Arduino throw one side already

[RockyBoy]

may i know what did you use to do the programing?? C++?

I used the arduino software. FOC.

Arduino download

[RockyBoy]

Good work bro!

I'm too busy with work now, my Arduino throw one side already

Hope my thread would restart your DIYing again.

Do let me know when you restarting.

[Harlequinmania]

wow very cool stuff ... Need a pro to do something like this.

[Thexder]

Hope my thread would restart your DIYing again.

Do let me know when you restarting.

Hopefully, by end of the year when my work is more free, I ask my s/w engineer to write the program for me

[RockyBoy]

Hopefully, by end of the year when my work is more free, I ask my s/w engineer to write the program for me

wahhh.. so syiok...

[Thexder]

wahhh.. so syiok...

Could be a problem, since he only knows PLC, VB and C++ Arduino is something new to him.