Schema de conectare este aceeasi:
In plus, fata de ce am prezentat in articolul mentionat, acum am pus sa afiseze si data, dupa cum am vazut in filmuletul
Ceas cu Arduino, DS1302,DHT11 si ds18d20 realizat de Mircea Craciun:
Filmuletul meu se numeste statie meteo cu DHT11 si ceas cu DS1307 pe afisaj cu 8 cifre din 7 segmente LED (2):
Montajul, in "actiune":
Sketch-ul folosit de mine este:
// adapted sketch by niq_ro from http://arduinotehniq.blogspot.com
// and http://nicuflorica.blogspot.ro
// version 1.0 in 6.11.2014, Craiova - Romanaia
// version 2.0 in 16.12.2014
// source for LEDControl: http://embedded-lab.com/blog/?p=6862
#include "LedControl.h"
/*
Now we need a LedControl to work with.
***** These pin numbers will probably not work with your hardware *****
pin 12 is connected to the DataIn
pin 11 is connected to the CLK
pin 10 is connected to LOAD
We have only a single MAX72XX.
*/
LedControl lc=LedControl(12,11,10,1);
// Example testing sketch for various DHT humidity/temperature sensors
// Written by ladyada, public domain
#include "DHT.h"
#define DHTPIN 7 // what pin we're connected to D7
// Uncomment whatever type you're using!
#define DHTTYPE DHT11 // DHT 11
//#define DHTTYPE DHT22 // DHT 22 (AM2302)
//#define DHTTYPE DHT21 // DHT 21 (AM2301)
// if is just sensor:
// Connect pin 1 (on the left) of the sensor to +5V
// Connect pin 2 of the sensor to whatever your DHTPIN is
// Connect pin 4 (on the right) of the sensor to GROUND
// Connect a 10K resistor from pin 2 (data) to pin 1 (power) of the sensor
DHT dht(DHTPIN, DHTTYPE);
// declaration for type of value
int t, h;
// Date and time functions using a DS1307 RTC connected via I2C and Wire lib
// original sketck from http://learn.adafruit.com/ds1307-real-time-clock-breakout-board-kit/
// add part with SQW=1Hz from http://tronixstuff.wordpress.com/2010/10/20/tutorial-arduino-and-the-i2c-bus/
#include <Wire.h>
#include "RTClib.h"
RTC_DS1307 RTC;
void setup()
{
// Initialize MAX7219 device
lc.shutdown(0,false); // Enable display
lc.setIntensity(0,3); // Set brightness level (0 is min, 15 is max)
lc.clearDisplay(0); // Clear display register
// Initialize HTD sensor
dht.begin();
Wire.begin();
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__));
// }
// 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.write(0x13); // sends 0x13 (hex) 00010011 (binary) to control register - turns on square wave at 32kHz
Wire.endTransmission();
// end part code from http://tronixstuff.wordpress.com/
/*
Serial.begin(9600);
Serial.println("test for niq_ro");
Serial.println("------------------");
*/
}
void loop()
{
// Reading temperature or humidity takes about 250 milliseconds!
// Sensor readings may also be up to 2 seconds 'old' (its a very slow sensor)
h = dht.readHumidity();
// t = dht.readTemperature();
/* test part
// test humidity value
h = 37;
// test temperature value
t = 19;
*/
//
lc.clearDisplay(0); // Clear display register
temperatura (t);
umiditate (h);
delay(3000);
lc.clearDisplay(0); // Clear display register
for(int j=0; j<3; j++){
DateTime now = RTC.now();
int ora0 = now.hour();
int minut0 = now.minute();
int second0 = now.second();
/*
// serial monitor
Serial.print(now.hour(), DEC);
Serial.print(":");
Serial.print(now.minute(), DEC);
Serial.print(":");
Serial.print(now.second(), DEC);
Serial.print(" -> ");
Serial.print(ora1);
Serial.println(":");
Serial.print(minut1);
Serial.print(":");
Serial.print(second1);
Serial.println("------------------");
*/
ora (ora0, minut0, second0);
delay (900);
}
t = dht.readTemperature(); // read data for temperature
lc.clearDisplay(0); // Clear display register
for(int j=0; j<3; j++){
DateTime now = RTC.now();
int ziua0 = now.day();
int luna0 = now.month();
int anul0 = now.year();
/*
// serial monitor
Serial.print(now.day(), DEC);
Serial.print(":");
Serial.print(now.month(), DEC);
Serial.print(":");
Serial.print(now.year(), DEC);
Serial.print(" -> ");
Serial.print(ziua0);
Serial.println(".");
Serial.print(luna0);
Serial.print(".");
Serial.print(anul0);
Serial.println("------------------");
*/
data (ziua0, luna0, anul0);
delay (900);
}
}
void umiditate (int umidit)
{
int zu = int(umidit/10); // determin cifra zecilor
int uu = umidit - 10*zu; // determin cifra unitatilor
lc.setDigit(0,2,zu, false); // afisez un 5 pe coloana 2
lc.setDigit(0,1,uu, false); // afisez un 0 pe coloana 1
lc.setRow(0,0,B0110111); // afisez litera "H"
}
void temperatura (int temper)
{
int zt = int(temper/10); // determin cifra zecilor
int ut = temper - 10*zt; // determin cifra unitatilor
lc.setDigit(0,7,zt, false); // afisez un 5 pe coloana 7
lc.setDigit(0,6,ut, false); // afisez un 0 pe coloana 1
lc.setRow(0,5,B1100011); // afisez un semn de grad pe coloana 5
lc.setRow(0,4,B1001110); // afisez un C pe coloana 4
}
void ora (int ora1, int minut1, int second1)
{
// hour
int zo = int(ora1/10); // determin cifra zecilor
int uo = ora1 - 10*zo; // determin cifra unitatilor
if (zo >= 1) lc.setDigit(0,7,zo, false); // afisez zecile de ore pe coloana 7 (in stanga)
lc.setDigit(0,6,uo, false); // afisez unitatile de ore pe coloana 6
lc.setRow(0,5,B0000001); // afisez o liniuta pe coloana 5
// minutes
int zm = int(minut1/10); // determin cifra zecilor
int um = minut1 - 10*zm; // determin cifra unitatilor
lc.setDigit(0,4,zm, false); // afisez zecile de minute pe coloana 4
lc.setDigit(0,3,um, false); // afisez unitatile de minute pe coloana 3
lc.setRow(0,2,B0000001); // afisez o liniuta pe coloana 2
// seconds
int zs = int(second1/10); // determin cifra zecilor
int us = second1 - 10*zs; // determin cifra unitatilor
lc.setDigit(0,1,zs, false); // afisez zecile de secunde pe coloana 1
lc.setDigit(0,0,us, false); // afisez unitatile de minute pe coloana 0 (dreapta)
}
void data (int ziua1, int luna1, int anul1)
{
// ziua (day)
int zz = int(ziua1/10); // determin cifra zecilor
int uz = ziua1 - 10*zz; // determin cifra unitatilor
if (zz >= 1) lc.setDigit(0,7,zz, false); // afisez zecile de ore pe coloana 7 (in stanga)
lc.setDigit(0,6,uz, true); // afisez unitatile de ore pe coloana 6
//lc.setRow(0,5,B0000001); // afisez o liniuta pe coloana 5
// luna (mounth)
int zl = int(luna1/10); // determin cifra zecilor
int ul = luna1 - 10*zl; // determin cifra unitatilor
lc.setDigit(0,5,zl, false); // afisez zecile de minute pe coloana 5
lc.setDigit(0,4,ul, true); // afisez unitatile de minute pe coloana 4
//lc.setRow(0,2,B0000001); // afisez o liniuta pe coloana 2
// anul (year)
int ma = int(anul1/1000); // determin cifra miilor
int rsa = anul1 - 1000*ma; // determin restul sutelor
int sa = int(rsa/100); // determin cifra sutelor
int rza = rsa - 100*sa; // determin restul zecilor
int za = int(rza/10); // determin cifra zecilor
int ua = rza - 10*za; // determin cifra anilor
lc.setDigit(0,3,ma, false); // afisez zecile de secunde pe coloana 3
lc.setDigit(0,2,sa, false); // afisez unitatile de minute pe coloana 2
lc.setDigit(0,1,za, false); // afisez zecile de secunde pe coloana 1
lc.setDigit(0,0,ua, false); // afisez unitatile de minute pe coloana 0 (dreapta)
}
