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Showing posts with label Arduiniq. Show all posts
Showing posts with label Arduiniq. Show all posts

Monday, September 29, 2014

Weather station & manual adjust for RTC clock with Arduino and alphanumeric LCD1602 display

   A simple weather station give us temperature & humidity + time.
   I use a Arduino Uno board as "brain", a DHT11 sensor for humidity and temperature & RTC module with DS1307 for time and values are put on a alphanumeric LCD1602 display.
   My last schematic is:
   Practically, my montage is:
   I use this sketch:
// Date and time functions using a DS1307 RTC 
// original sketck from http://learn.adafruit.com/ds1307-real-time-clock-breakout-board-kit/
// add part with SQW=1Hz from http://tronixstuff.wordpress.com/ & http://www.bristolwatch.com/arduino/arduino_ds1307.htm
// adapted sketch by niq_ro from http://nicuflorica.blogspot.ro/
// original article from http://nicuflorica.blogspot.ro/2013/06/ceas-de-timp-real-rtc-cu-ds1307-si.html

#include <Wire.h>
#include "RTClib.h"

// include the library code:
#include <LiquidCrystal.h>
// initialize the library with the numbers of the interface pins
LiquidCrystal lcd(7, 6, 5, 4, 3, 2);

/*                                    -------------------
                                      |  LCD  | Arduino |
                                      -------------------
 LCD RS pin to digital pin 7          |  RS   |   D7    |
 LCD Enable pin to digital pin 6      |  E    |   D6    |
 LCD D4 pin to digital pin 5          |  D4   |   D6    |
 LCD D5 pin to digital pin 4          |  D5   |   D4    |
 LCD D6 pin to digital pin 3          |  D6   |   D3    |
 LCD D7 pin to digital pin 2          |  D7   |   D2    |
 LCD R/W pin to ground                |  R/W  |   GND   |
                                      -------------------
*/

RTC_DS1307 RTC;

#include <DHT.h>
#define DHTPIN 8     // what pin we're connected DHT11
#define DHTTYPE DHT11   // DHT 11 
DHT dht(DHTPIN, DHTTYPE);

byte SW0 = A0;
byte SW1 = A1;
byte SW2 = A2;

// use for hexa in zecimal conversion
int zh, uh, ore;
int zm, um, miniti;


void setup () {
  // DHT init
  dht.begin();
  // set up the LCD's number of columns and rows: 
  lcd.begin(16, 2);
  // Print a logo message to the LCD.
  lcd.print("www.tehnic.go.ro");  
  lcd.setCursor(0, 1);
  lcd.print("creat de niq_ro");
  delay (2500);
  lcd.clear();
    
   // Serial.begin(9600);
    Wire.begin();
  
// part code from http://tronixstuff.wordpress.com/
Wire.beginTransmission(0x68);
Wire.write(0x07); // move pointer to SQW address
Wire.write(0x10); // sends 0x10 (hex) 00010000 (binary) to control register - turns on square wave
Wire.endTransmission();
// end part code from http://tronixstuff.wordpress.com/

    RTC.begin();
  if (! RTC.isrunning()) {
    //Serial.println("RTC is NOT running!");
    // following line sets the RTC to the date & time this sketch was compiled
    RTC.adjust(DateTime(__DATE__, __TIME__));
  }

 pinMode(SW0, INPUT);  // for this use a slide switch
  pinMode(SW1, INPUT);  // N.O. push button switch
  pinMode(SW2, INPUT);  // N.O. push button switch

  digitalWrite(SW0, HIGH); // pull-ups on
  digitalWrite(SW1, HIGH);
  digitalWrite(SW2, HIGH);

}

void loop () {
   DateTime now = RTC.now();
  int h = dht.readHumidity();
  int t = dht.readTemperature();

   lcd.setCursor(4, 0);
   if ( now.hour() < 10)
   {
     lcd.print(" "); 
     lcd.print(now.hour(), DEC);
   }
   else
   {
   lcd.print(now.hour(), DEC);
   }
   lcd.print(":");
   if ( now.minute() < 10)
   {
     lcd.print("0"); 
     lcd.print(now.minute(), DEC);
   }
   else
   {
   lcd.print(now.minute(), DEC);
   }
   lcd.print(":");
   if ( now.second() < 10)
   {
     lcd.print("0"); 
     lcd.print(now.second(), DEC);
   }
   else
   {
   lcd.print(now.second(), DEC);
   }
     lcd.print(" "); 
 
  lcd.setCursor(1, 1);
  // lcd.print("t=");
    if ( t < 10)
   {
     lcd.print(" "); 
     lcd.print(t);
   }
   else
   {
   lcd.print(t);
   }
   //lcd.print(",0");
   lcd.write(0b11011111);
   lcd.print("C");
    
/*   lcd.setCursor(0, 1);
    if ( now.day() < 10)
   {
     lcd.print("0"); 
     lcd.print(now.day(), DEC);
   }
   else
   {
   lcd.print(now.day(), DEC);
   }
   lcd.print("/");
   if ( now.month() < 10)
   {
     lcd.print("0"); 
     lcd.print(now.month(), DEC);
   }
   else
   {
   lcd.print(now.month(), DEC);
   }
   lcd.print("/");
   lcd.print(now.year(), DEC);
   lcd.print(" "); 
*/  
   lcd.setCursor(10, 1);
  // lcd.print("H=");
   lcd.print(h);
   lcd.print("%RH");
 
   if (!(digitalRead(SW0))) set_time(); // hold the switch to set time

 
   delay(500);
}

void set_time()   {
  byte minutes1 = 0;
  byte hours1 = 0;
  byte minutes = 0;
  byte hours = 0;

  while (!digitalRead(SW0))  // set time switch must be released to exit
  {
    minutes1=minutes;
    hours1=hours;
    
     
    while (!digitalRead(SW1)) // set minutes
    { 
     minutes++;  
   // converting hexa in zecimal:
    zh = hours / 16;
    uh = hours - 16 * zh ;
    ore = 10 * zh + uh; 
    zm = minutes / 16;
    um = minutes - 16 * zm ;
    miniti = 10 * zm + um; 
  
  /*  
     for(int i = 20 ; i >0  ; i--) {
     displayNumber01(ore*100+miniti); 
     }
   */
   lcd.setCursor(4, 0);
   if ( ore < 10)
   {
     lcd.print(" "); 
     lcd.print(ore);
   }
   else
   {
   lcd.print(ore);
   }
   lcd.print(":");
   if ( miniti < 10)
   {
     lcd.print("0"); 
     lcd.print(miniti);
   }
   else
   {
   lcd.print(miniti);
   }
   lcd.print(":");
   lcd.print("00"); 
      
      if ((minutes & 0x0f) > 9) minutes = minutes + 6;
      if (minutes > 0x59) minutes = 0;
      Serial.print("Minutes = ");
      if (minutes >= 9) Serial.print("0");
      Serial.println(minutes, HEX);
    delay(150);    
    }

    while (!digitalRead(SW2)) // set hours
    { 
     hours++;          
     
   // converting hexa in zecimal:
    zh = hours / 16;
    uh = hours - 16 * zh ;
    ore = 10 * zh + uh; 
    zm = minutes / 16;
    um = minutes - 16 * zm ;
    miniti = 10 * zm + um; 
    
   /*
     for(int i = 20 ; i >0  ; i--) {
     displayNumber01(ore*100+miniti); 
     }
   */
   lcd.setCursor(4, 0);
   if ( ore < 10)
   {
     lcd.print(" "); 
     lcd.print(ore);
   }
   else
   {
   lcd.print(ore);
   }
   lcd.print(":");
   if ( miniti < 10)
   {
     lcd.print("0"); 
     lcd.print(miniti);
   }
   else
   {
   lcd.print(miniti);
   }
   lcd.print(":");
   lcd.print("00");
      
      if ((hours & 0x0f) > 9) hours =  hours + 6;
      if (hours > 0x23) hours = 0;
      Serial.print("Hours = ");
      if (hours <= 9) Serial.print("0");
      Serial.println(hours, HEX);
    delay(150);
    }

    Wire.beginTransmission(0x68); // activate DS1307
    Wire.write(0); // where to begin
    Wire.write(0x00);          //seconds
    Wire.write(minutes);          //minutes
    Wire.write(0x80 | hours);    //hours (24hr time)
    Wire.write(0x06);  // Day 01-07
    Wire.write(0x01);  // Date 0-31
    Wire.write(0x05);  // month 0-12
    Wire.write(0x09);  // Year 00-99
    Wire.write(0x10); // Control 0x10 produces a 1 HZ square wave on pin 7. 
    Wire.endTransmission();
  
    // converting hexa in zecimal:
    zh = hours / 16;
    uh = hours - 16 * zh ;
    ore = 10 * zh + uh; 
    zm = minutes / 16;
    um = minutes - 16 * zm ;
    miniti = 10 * zm + um; 
    
   /*  for(int i = 20 ; i >0  ; i--) {
     displayNumber01(ore*100+miniti); 
     }
 //  delay(150);
    */

   lcd.setCursor(4, 0);
   if ( ore < 10)
   {
     lcd.print(" "); 
     lcd.print(ore);
   }
   else
   {
   lcd.print(ore);
   }
   lcd.print(":");
   if ( miniti < 10)
   {
     lcd.print("0"); 
     lcd.print(miniti);
   }
   else
   {
   lcd.print(miniti);
   }
   lcd.print(":");
   lcd.print("00");
}
   I made a movie with some usefull comments, named weather & manual adjust for RTC clock with Arduino and LCD1602 display:
   Like in previous article, if you want to change time, must push and hold SW0 (adjust) switch and display is change on 0:00, then push SW2 (hour) or SW1 (minute) repeatedly until time is ok, after this realise SW0, and time is put in RTC.

Monday, September 22, 2014

Arduiniq ver.3.0 (homemade compatible Arduino board)

   In case of dangerous experiments for an original Arduino board, like big consumption, high voltage at input module, etc I design and use more boards who use ATmega328P-PU microcontroller, but this is compatible with most official shields.
   Schematic is very simple, with few components:
   Board with components is:
   Schematic and boards are designed with Eagle PCB software and you can download sch and brd files for made boards by yourself. 
   A realistic 3D of my board is made with Eagle PCB software, too:
  
Note: ATmega328P-PU must have Arduino booloader on it...

1st update 24.9.2014)
   Schematic for conection between Arduiniq board and USB to TTL FTDI module is: