Un blog ce completeaza site-ul www.arduinotehniq.com (www.tehnic.go.ro); o parte din articole sunt (si vor fi) postate si in engleza pe arduinotehniq.blogspot.com. Filmuletele tehnice se gasesc pe canalul de youtube...
miercuri, 5 august 2026
Statie meteo cu ESP32-C3 Mini si afisaj ST7789 240x240
luni, 5 august 2024
Ceas cu date meteo (Rpi Pico W si afisaj LCD1602 pe i2c) - MicroPhython
Prinzand un pic de timp liber, am zis sa testez un proiect programat cu MicroPython, si am ales un ceas cu niste informatii meteo preluate de pe serverul openweathermap, proiect gasit in articolul https://how2elecRaspberry Pi Pico W IoT Weather Station – OpenWeatherMap.
Schema de conectare este foarte simpla, de asta am si ales proiectul:
Dupa ce am instalat programul Thonny IDE cum am gasit in articolul Getting Started with Thonny MicroPython (Python) IDE for ESP32 and ESP8266 am instalat ultima versiune de firmware in placa Raspberry Pi Pico W gasita la Pico W (MicroPython) si am copiat cele trei 3 programele necesare.joi, 14 ianuarie 2021
Alta versiune de ceas animat cu date meteo (4)
Deoarece versiunea anterioara avea un mic "defect", schimband intensitatea luminoasa a afisajului matriceal foarte repede daca erau variatii bruste ale luminii din mediu apropiat, am corectat asta in fisierul LEDMatrixV2ro4.ino din subdirectorul LEDMatrixV2ro4.
Pentru a nu ma mai deplasa la montaj, am implementat incarcarea de la distanta, care am prezentat-o in articolul Programare de la distanta (OTA) placa de dezvoltare cu ESP8266 asa ca acum trebuie folosite fisierele din subdirectorul LEDMatrixV2ro5
marți, 3 noiembrie 2015
Afisaj matriceal din 8x8 leduri controlat de MAX7219 (3)
- temperatura:
- data (e text miscator, ca nu incape):.
Schema este aceeasi:
Am modificat sketch-ul, fata de cel din articolul anterior, astfel incat sa nu mai am partea de text (temperatura, umiditate, data, ora), devenind maxmatrix_ds18b20_dht_4module_ver7m2.ino.
Am facut si 2 filmulete:
- statie meteo si ceas cu data pe afisaj led de 32x8 leduri (5)
joi, 1 octombrie 2015
Afisaj P20F04D-12L cu rezolutie 16x8 pixeli 2R1G1B (continuare)
Pentru a putea afisa un mesaj, intai am desenat un text cu rezolutia ecranului compus din cele 2 panouri (32x8) si am pus manual in siruri, in stilul de afisare:
sâmbătă, 10 ianuarie 2015
Modul de afisare cu 8 cifre LED din 7 segmente fiecare controlate de MAX7219 (V)
Schema de conectare folosita este:
Ciclic pe ecran se prezinta informatiile:
- ora:
- anul:
// 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 A1 // what pin we're connected to A1
// 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/
// Dawn & Dusk controller. http://andydoz.blogspot.ro/2014_08_01_archive.html
// 16th August 2014 - (C) A.G.Doswell 2014
#include <Wire.h>
#include "RTClib.h" // from https://github.com/adafruit/RTClib
#include <LiquidCrystal.h>
#include <Encoder.h> // from http://www.pjrc.com/teensy/td_libs_Encoder.html
RTC_DS1307 RTC; // Tells the RTC library that we're using a DS1307 RTC
Encoder knob(2, 3); //encoder connected to pins 2 and 3 (and ground)
//the variables provide the holding values for the set clock routine
int setyeartemp;
int setmonthtemp;
int setdaytemp;
int sethourstemp;
int setminstemp;
int setsecs = 0;
int maxday; // maximum number of days in the given month
int TimeOut = 10;
int TimeOutCounter;
// These variables are for the push button routine
int buttonstate = 0; //flag to see if the button has been pressed, used internal on the subroutine only
int pushlengthset = 3000; // value for a long push in mS
int pushlength = pushlengthset; // set default pushlength
int pushstart = 0;// sets default push value for the button going low
int pushstop = 0;// sets the default value for when the button goes back high
int knobval; // value for the rotation of the knob
boolean buttonflag = false; // default value for the button flag
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/
pinMode(A0,INPUT);//push button on encoder connected to A0 (and GND)
digitalWrite(A0,HIGH); //Pull A0 high
/*
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
for(int j=0; j<300; j++){
temperatura (t);
umiditate (h);
pushlength = pushlengthset;
pushlength = getpushlength ();
delay (10);
if (pushlength <pushlengthset) {
ShortPush ();
}
//This runs the setclock routine if the knob is pushed for a long time
if (pushlength >pushlengthset) {
lc.clearDisplay(0); // Clear display register
DateTime now = RTC.now();
setyeartemp=now.year(),DEC;
setmonthtemp=now.month(),DEC;
setdaytemp=now.day(),DEC;
sethourstemp=now.hour(),DEC;
setminstemp=now.minute(),DEC;
setclock();
pushlength = pushlengthset;
};
}
//delay(3000);
lc.clearDisplay(0); // Clear display register
for(int j=0; j<300; 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);
pushlength = pushlengthset;
pushlength = getpushlength ();
delay (10);
if (pushlength <pushlengthset) {
ShortPush ();
}
//This runs the setclock routine if the knob is pushed for a long time
if (pushlength >pushlengthset) {
lc.clearDisplay(0); // Clear display register
DateTime now = RTC.now();
setyeartemp=now.year(),DEC;
setmonthtemp=now.month(),DEC;
setdaytemp=now.day(),DEC;
sethourstemp=now.hour(),DEC;
setminstemp=now.minute(),DEC;
setclock();
pushlength = pushlengthset;
};
//delay (900);
}
t = dht.readTemperature(); // read data for temperature
lc.clearDisplay(0); // Clear display register
for(int j=0; j<300; 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);
pushlength = pushlengthset;
pushlength = getpushlength ();
delay (10);
if (pushlength <pushlengthset) {
ShortPush ();
}
//This runs the setclock routine if the knob is pushed for a long time
if (pushlength >pushlengthset) {
lc.clearDisplay(0); // Clear display register
DateTime now = RTC.now();
setyeartemp=now.year(),DEC;
setmonthtemp=now.month(),DEC;
setdaytemp=now.day(),DEC;
sethourstemp=now.hour(),DEC;
setminstemp=now.minute(),DEC;
setclock();
pushlength = pushlengthset;
};
//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)
}
//sets the clock
void setclock (){
setyear ();
lc.clearDisplay(0); // Clear display register
setmonth ();
lc.clearDisplay(0); // Clear display register
setday ();
lc.clearDisplay(0); // Clear display register
sethours ();
lc.clearDisplay(0); // Clear display register
setmins ();
lc.clearDisplay(0); // Clear display register
RTC.adjust(DateTime(setyeartemp,setmonthtemp,setdaytemp,sethourstemp,setminstemp,setsecs));
delay (1000);
}
// subroutine to return the length of the button push.
int getpushlength () {
buttonstate = digitalRead(A0);
if(buttonstate == LOW && buttonflag==false) {
pushstart = millis();
buttonflag = true;
};
if (buttonstate == HIGH && buttonflag==true) {
pushstop = millis ();
pushlength = pushstop - pushstart;
buttonflag = false;
};
return pushlength;
}
// The following subroutines set the individual clock parameters
int setyear () {
//lcd.clear();
//lc.clearDisplay(0); // Clear display register
// lcd.print ("Set Year");
lc.setRow(0,7,B0111011); // afisez litera "y" pe coloane 7 (in stanga de tot)
lc.setRow(0,6,B1101111); // afisez litera "e" pe coloane 6
lc.setRow(0,5,B1111101); // afisez litera "a" pe coloane 5
lc.setRow(0,4,B0000101); // afisez litera "r" pe coloane 4
pushlength = pushlengthset;
pushlength = getpushlength ();
if (pushlength != pushlengthset) {
return setyeartemp;
}
//lc.clearDisplay(0); // Clear display register
knob.write(0);
delay (50);
knobval=knob.read();
if (knobval < -1) { //bit of software de-bounce
knobval = -1;
}
if (knobval > 1) {
knobval = 1;
}
setyeartemp=setyeartemp + knobval;
if (setyeartemp < 2014) { //Year can't be older than currently, it's not a time machine.
setyeartemp = 2014;
}
// lcd.print (setyeartemp);
int zua = setyeartemp - 2000; // aflu ultimele 2 cifre din an
int za = zua / 10; // aflu cifra zecilor din an
int ua = zua - 10*za; // aflu cifra unitatilor din an
lc.setDigit(0,1,za, false); // afisez cifra zecilor din an pe coloana 1
lc.setDigit(0,0,ua, false); // afisez cifra unitatilor din an pe coloana 0 (dreapta de tot)
setyear();
}
int setmonth () {
//lcd.clear();
//lcd.print ("Set Month");
lc.setRow(0,7,B0110111); // afisez litera "H" (in loc de "m") pe coloane 7 (in stanga de tot)
//lc.setRow(0,7,B1001111); // afisez litera "E" (in loc de "m") pe coloane 7 (in stanga de tot)
lc.setRow(0,6,B0011101); // afisez litera "o" pe coloane 6
lc.setRow(0,5,B0010101); // afisez litera "n" pe coloane 5
lc.setRow(0,4,B0001111); // afisez litera "t" pe coloane 4
lc.setRow(0,3,B0010111); // afisez litera "h" pe coloane 3
pushlength = pushlengthset;
pushlength = getpushlength ();
if (pushlength != pushlengthset) {
return setmonthtemp;
}
// lcd.setCursor (0,1);
knob.write(0);
delay (50);
knobval=knob.read();
if (knobval < -1) {
knobval = -1;
}
if (knobval > 1) {
knobval = 1;
}
setmonthtemp=setmonthtemp + knobval;
if (setmonthtemp < 1) {// month must be between 1 and 12
setmonthtemp = 1;
}
if (setmonthtemp > 12) {
setmonthtemp=12;
}
// lcd.print (setmonthtemp);
// lcd.print(" ");
int zl = setmonthtemp / 10; // aflu cifra zecilor din luna
int ul = setmonthtemp - 10*zl; // aflu cifra unitatilor din luna
lc.setDigit(0,1,zl, false); // afisez cifra zecilor din luna pe coloana 1
lc.setDigit(0,0,ul, false); // afisez cifra unitatilor din luna pe coloana 0 (dreapta de tot)
setmonth();
}
int setday () {
if (setmonthtemp == 4 || setmonthtemp == 5 || setmonthtemp == 9 || setmonthtemp == 11) { //30 days hath September, April June and November
maxday = 30;
}
else {
maxday = 31; //... all the others have 31
}
if (setmonthtemp ==2 && setyeartemp % 4 ==0) { //... Except February alone, and that has 28 days clear, and 29 in a leap year.
maxday = 29;
}
if (setmonthtemp ==2 && setyeartemp % 4 !=0) {
maxday = 28;
}
//lcd.clear();
// lcd.print ("Set Day");
lc.setRow(0,7,B0111101); // afisez litera "d" pe coloane 7
lc.setRow(0,6,B1111101); // afisez litera "a" pe coloane 6
lc.setRow(0,5,B0111011); // afisez litera "y" pe coloane 5
pushlength = pushlengthset;
pushlength = getpushlength ();
if (pushlength != pushlengthset) {
return setdaytemp;
}
// lcd.setCursor (0,1);
knob.write(0);
delay (50);
knobval=knob.read();
if (knobval < -1) {
knobval = -1;
}
if (knobval > 1) {
knobval = 1;
}
setdaytemp=setdaytemp+ knobval;
if (setdaytemp < 1) {
setdaytemp = 1;
}
if (setdaytemp > maxday) {
setdaytemp = maxday;
}
// lcd.print (setdaytemp);
// lcd.print(" ");
int zz = setdaytemp / 10; // aflu cifra zecilor din zi
int uz = setdaytemp - 10*zz; // aflu cifra unitatilor din zi
lc.setDigit(0,1,zz, false); // afisez cifra zecilor din zi pe coloana 1
lc.setDigit(0,0,uz, false); // afisez cifra unitatilor din zi pe coloana 0 (dreapta de tot)
setday();
}
int sethours () {
//lcd.clear();
// lcd.setCursor (0,0);
// lcd.print ("Set Hours");
lc.setRow(0,7,B0010111); // afisez litera "h" pe coloane 7
lc.setRow(0,6,B0011101); // afisez litera "o" pe coloane 6
lc.setRow(0,5,B0011100); // afisez litera "u" pe coloane 5
lc.setRow(0,4,B0000101); // afisez litera "r" pe coloane 4
pushlength = pushlengthset;
pushlength = getpushlength ();
if (pushlength != pushlengthset) {
return sethourstemp;
}
// lcd.setCursor (0,1);
knob.write(0);
delay (50);
knobval=knob.read();
if (knobval < -1) {
knobval = -1;
}
if (knobval > 1) {
knobval = 1;
}
sethourstemp=sethourstemp + knobval;
if (sethourstemp < 1) {
sethourstemp = 1;
}
if (sethourstemp > 23) {
sethourstemp=23;
}
// lcd.print (sethourstemp);
// lcd.print(" ");
int zo = sethourstemp / 10; // aflu cifra zecilor de ore
int uo = sethourstemp - 10*zo; // aflu cifra unitatilor de ore
lc.setDigit(0,1,zo, false); // afisez cifra zecilor de ora pe coloana 1
lc.setDigit(0,0,uo, false); // afisez cifra unitatilor de ora pe coloana 0 (dreapta de tot)
sethours();
}
int setmins () {
//lcd.clear();
// lcd.setCursor (0,0);
// lcd.print ("Set Mins");
lc.setRow(0,7,B0110111); // afisez litera "H" (in loc de "m") pe coloane 7 (in stanga de tot)
//lc.setRow(0,7,B1001111); // afisez litera "E" (in loc de "m") pe coloane 7 (in stanga de tot)
lc.setRow(0,6,B0010000); // afisez litera "i" pe coloane 6
lc.setRow(0,5,B0010101); // afisez litera "n" pe coloane 5
pushlength = pushlengthset;
pushlength = getpushlength ();
if (pushlength != pushlengthset) {
return setminstemp;
}
// lcd.setCursor (0,1);
knob.write(0);
delay (50);
knobval=knob.read();
if (knobval < -1) {
knobval = -1;
}
if (knobval > 1) {
knobval = 1;
}
setminstemp=setminstemp + knobval;
if (setminstemp < 0) {
setminstemp = 0;
}
if (setminstemp > 59) {
setminstemp=59;
}
// lcd.print (setminstemp);
// lcd.print(" ");
int zm = setminstemp / 10; // aflu cifra zecilor de minute
int um = setminstemp - 10*zm; // aflu cifra unitatilor de minute
lc.setDigit(0,1,zm, false); // afisez cifra zecilor de minute pe coloana 1
lc.setDigit(0,0,um, false); // afisez cifra unitatilor de minute pe coloana 0 (dreapta de tot)
setmins();
}
void ShortPush () {
//This displays show something
lc.clearDisplay(0); // Clear display register
for (long Counter = 0; Counter < 10 ; Counter ++) { //returns to the main loop if it's been run 604 times
// lcd.setCursor (2,0);
// lcd.print ("Hi, niq_ro!");
lc.setRow(0,6,B1100010); // afisez litera "n" pe coloane 6
lc.setRow(0,5,B0100000); // afisez litera "i" pe coloane 5
lc.setRow(0,4,B1110011); // afisez litera "q" pe coloane 4
lc.setRow(0,3,B0000001); // afisez semnul "-" pe coloane 3
lc.setRow(0,2,B1000010); // afisez litera "r" pe coloane 2
lc.setRow(0,1,B1100011); // afisez litera "o" pe coloane 1
delay(200);
}
lc.clearDisplay(0); // Clear display register
}
11.01.2014
Am schimbat putin la afisarea anului si minutelor:
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rezumat articol Avand o situatie in care am o masina de spalat automata veche (AEG Lavamat Regina 804), pe care am reusit s-o reconditi...





























