Am reluat testele cu statia meteo si ceas care prezinta datele pe un afisaj cu rezolutie de 32x8 leduri (compus din 4 afisaje 8x8 leduri rosii), contorlate de integrate MAX7219, de data asta am afisajele montate intr-o carcasa, iar ca placa de dezvoltare, am folosit un Arduino Mega, ca era disponibil. Pentru temperatura se foloseste un senzor DHT11, iar pentru temperatura un DS18B20.
// 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 valueint 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_DS1307RTC;
voidsetup()
{
// 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 compiledRTC.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 waveWire.write(0x13); // sends 0x13 (hex) 00010011 (binary) to control register - turns on square wave at 32kHzWire.endTransmission();
// end part code from http://tronixstuff.wordpress.com//* Serial.begin(9600); Serial.println("test for niq_ro"); Serial.println("------------------");*/
}
voidloop()
{
// 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 valueh = 37;// test temperature valuet = 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++){
DateTimenow = 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++){
DateTimenow = 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 zecilorint 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 zecilorint 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)
{
// hourint zo = int(ora1/10); // determin cifra zecilorint uo = ora1 - 10*zo; // determin cifra unitatilorif (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// minutesint zm = int(minut1/10); // determin cifra zecilorint 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// secondsint zs = int(second1/10); // determin cifra zecilorint 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 zecilorint uz = ziua1 - 10*zz; // determin cifra unitatilorif (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 zecilorint 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 miilorint rsa = anul1 - 1000*ma; // determin restul sutelorint sa = int(rsa/100); // determin cifra sutelorint rza = rsa - 100*sa; // determin restul zecilorint za = int(rza/10); // determin cifra zecilorint 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)
}