Koodka Arduino iyo fiidiyowga DHT22 heerkulka iyo qoyaanka dareenka leh TM1637 bandhigga iyo relay-ga

Koodka Arduino iyo fiidiyowga DHT22 heerkulka iyo qoyaanka dareenka leh TM1637 bandhigga iyo relay-ga

Cashigarkaan, waxaanu sahamin doonaa sida loo isticmaalo dareeme heerkulka iyo qoyaanka DHT22 oo lala xiriirinayo shaashadda TM1637 iyo relay si loo xakameeyo culayska AC, sida kuleyliyaha ama marwaxadda. Ujeedadu waa in la shido culayska marka heerkulku gaaro 50 darajo Celsius lana damiyo marka uu ka hooseeyo heerkaas. Qaabkani wuxuu ku habboon yahay ilaalinta heerarka heerkulka ee la doonayo ee deegaanka la xakameeyay.

Si loo gaaro tan, waxaanu qori doonaa barnaamij Arduino ka akhriya xogta heerkulka iyo qoyaanka ee dareemaha DHT22, ku muujiya heerkulka shaashadda TM1637, oo xakameeya relay-ga iyadoo lagu salaynayo akhrinta heerkulka. Si faahfaahin dheeri ah, waxaad ka hubin kartaa fiidiyowga (fiidiyowga 10:00).

Qalabka La Sharaxay

Qaybaha ugu muhiimsan ee mashruucan waxaa ka mid ah dareemaha DHT22, shaashadda TM1637, qaybta relay-ga, iyo looxa Arduino. Dareemaha DHT22 ayaa mas'uul ka ah cabbiraadda heerkulka iyo qoyaanka, isagoo bixinaya wax soo saar dhijitaal ah oo Arduino si fudud u akhriyi karo. Shaashadda TM1637 waxaa loo isticmaalaa in lagu muujiyo akhrinta heerkulka qaab isticmaale saaxiibtinimo leh, halka qaybta relay-ga ay noo ogolaanayso inaan xakameynno qalabka koronto sare leh sida kuleyliyeyaasha iyo marwaxyada si ammaan ah.

Dareemaha DHT22 wuxuu leeyahay saddex biin: VCC (koronto), GND (dhul), iyo DATA (soo saarista). Shaashadda TM1637 waxay isticmaashaa afar biin oo loogu talagalay koronto, dhul, saacad, iyo isgaarsiinta xogta. Qaybta relay-ga waxay ku xidhantahay Arduino waxayna u shaqeysaa sidii furaha culayska AC, iyadoo hubinaysa hawlgalka ammaanka ah marka la xakameynayo qalabka u baahan koronto sare.

Faahfaahinta Xogta

• Hubi sahayda korontada ee saxda ah (3.3 V - 6 V) ee DHT22.
• Isticmaal resistors-ka kor u jiidaya ee khadka xogta haddii loo baahdo.
• U oggolow akhrinta dareemaha inay xasilaan si xogta saxda ah loo helo.
• Labo jeer hubi xidhiidhada biinanka si looga fogaado isgaarsiin khaldan.
• Ka digtoonow culaysyada AC; hubi dahaarka iyo ammaanka saxda ah.
• Ku dabaq kulayl-qaadista relay-ga haddii aad xakameyneyso culaysyo sare.
• Isticmaal farsamooyinka debounce haddii loo baahdo marka la akhriyayo xogta dareemaha.
• Ka ilaali dareemaha DHT22 inuu si toos ah uga soo gaaro qorraxda si akhrin sax ah loo helo.

Tilmaamaha Xidhiidhinta

Si loo xidho qaybaha, ku bilow adigoo xidhaya dareemaha DHT22. Ku xidh biinka VCC biinka 5V ee Arduino, biinka GND dhulka (GND), iyo biinka DATA biinka dhijitaalka ah ee 9 ee Arduino.

Marka xigta, xidh shaashadda TM1637. Ku xidh biinka VCC biinka 5V ee Arduino, biinka GND dhulka, biinka CLK (saacadda) biinka dhijitaalka ah ee 2, iyo biinka DIO (xogta) biinka dhijitaalka ah ee 3. Qaybta relay-ga, ku xidh biinka VCC biinka 5V, biinka GND dhulka, iyo biinka xakamaynta (signalka) biinka dhijitaalka ah ee 7. Ugu dambeyntii, hubi in culayska AC si ammaan ah loogu xidhay qaybta relay-ga iyadoo la raacayo tilmaamaha soo saaraha.

Tusaalooyinka Koodhka & Sharaxaadda

Koodhka soo socdaa wuxuu bilaabayaa dareemaha DHT22 iyo shaashadda TM1637. Wuxuu dejinayaa biinanka lagama maarmaanka ah wuxuuna diyaarinayaa inuu akhriyo xogta heerkulka.

#include 
#define CLK 2
#define DIO 3
#define DHTPIN 9
DHT dht(DHTPIN, DHTTYPE);
void setup() {
  Serial.begin(9600);
  pinMode(RELAY, OUTPUT);
  dht.begin();
}

Qaybtan, waxaanu ku daraynaa maktabadaha lagama maarmaanka ah waxaanu qeexaynaa biinanka shaashadda TM1637 iyo dareemaha DHT22. Hawsha setup waxay bilaabaysaa isgaarsiinta serial-ka waxayna u dejisaa biinka relay-ga sidii soo saarista.

Hawsha loop waxay soo celisaa heerkulka waxayna xakameysaa relay-ga iyadoo lagu salaynayo akhrinta heerkulka. Haddii heerkulku ka sarreeyo 50 darajo, relay-ga waa la hawlgeliyay.

void loop() {
  delay(TEST_DELAY);
  int temp = round(getTemp("c"));
  display.showNumberDec(temp, false, 3, 1);
  if(temp > 50) {
    digitalWrite(RELAY, LOW);
  } else {
    digitalWrite(RELAY, HIGH);
  }
}

Qaybtan koodhka waxay muujinaysaa sida loo akhriyo heerkulka, loo muujiyo, loona xakameeyo relay-ga. Heerkulka waa la wareejiyaa waxaana lagu muujiyaa TM1637, relay-gana waa la shidaa ama la damiyaa iyadoo lagu salaynayo heerka heerkulka.

Si aad u fahanto si buuxda, fadlan tixraac koodhka buuxa ee hoos ku xiran maqaalka.

Muuujinta / Waxa Laga Filan Karo

Markaad wado barnaamijka, waxaad arki doontaa heerkulka oo ku muujisan TM1637. Marka heerkulku ka sarreeyo 50 darajo Celsius, relay-ga wuu hawlgelin doonaa, isagoo shidi doona culayska AC ee ku xidhan. Taa beddelkeeda, marka heerkulku hoos u dhaco 50 darajo, relay-ga wuu dami doonaa, isagoo damin doona culayska. Ka digtoonow rogaanshaha korontada oo hubi xidhiidhada saxda ah si looga fogaado dhaawaca qaybaha (fiidiyowga 12:30).

Waqtiyada Fiidiyowga

• 00:00 - Hordhac
• 02:15 - Sharaxaadda Xidhiidhinta
• 05:00 - Sharaxaadda Koodhka
• 10:00 - Muujinta
• 12:30 - Dhibaatooyinka Caadiga Ah

Sawirro

DHT11 Module

DHT22 sensor with PCB-1

DHT22 sensor no PCB

Wirig relay module to AC load

Wiring DHT11 DHT22 with TM1637 dispaly and relay

DHT11 Module

DHT22 sensor with PCB-1

DHT22 sensor no PCB

Wirig relay module to AC load

Wiring DHT11 DHT22 with TM1637 dispaly and relay

/*
 * Original code from TM1637 https://github.com/avishorp/TM1637
 * Original code and library for DHT22 https://github.com/adafruit/DHT-sensor-library
 * Watch the video for this code https://youtu.be/xD8wHXDzLkQ 
 * Other Arduino library and videos https://robojax.com
 */
 /*

 * Modified for Robojax video on January 10, 2018
 * by Ahmad Nejrabi, in Ajax, Ontario, Canada
 */
 
// ****** Start of TM1637 Display code 
#include <Arduino.h>
#include <TM1637Display.h>
// Module connection pins (Digital Pins)
#define CLK 2
#define DIO 3
// The amount of time (in milliseconds) between tests
#define TEST_DELAY   1000
TM1637Display display(CLK, DIO);
// ****** end of TM1637 Display code 

// Example testing sketch for various DHT humidity/temperature sensors
// Written by ladyada, public domain
// updated by Ahmad for Robojax.com videos.
// on January 10, 2018 in Ajax, Ontario, Canada

// ****** Start of DHT code 
#include "DHT.h"
#define DHTPIN 9     // what digital pin we're connected to
// Uncomment whatever type you're using!
//#define DHTTYPE DHT11   // DHT 11
#define DHTTYPE DHT22   // DHT 22  (AM2302), AM2321
//#define DHTTYPE DHT21   // DHT 21 (AM2301)
DHT dht(DHTPIN, DHTTYPE);
// ********** end of DHT22 code

#define RELAY 7 // the pin connected to relay
void setup()
{
  Serial.begin(9600);
  Serial.println("DHT22 Robojax Test with Display");
  pinMode(RELAY,OUTPUT);// set RELAY pin as output

  dht.begin();  
}

void loop()
{
  delay(TEST_DELAY);// wait
  // **** TM1637 code start
  display.setBrightness(0x0f);// set brightness
  uint8_t data[] = { 0x0, 0x0, 0x0, 0x0 };// clear display values
  display.setSegments(data);//clear display
  // **** TM1637 code end
  

  // Robojax.com test video
  Serial.println(getTemp("c"));

  int temp = round(getTemp("c"));
  
  display.showNumberDec(temp, false, 3,1);
 if(temp >50 )
 {
  digitalWrite(RELAY, LOW);
 }else{
  digitalWrite(RELAY, HIGH);
 }


}// loop end


/*
 * getTemp(String req)
 * returns the temperature related parameters
 * req is string request
 * getTemp("c") will return temperature in Celsius
 * getTemp("hic") will return heat index in Celsius
 * getTemp("f") will return temperature in Fahrenheit
 * getTemp("hif") will return temperature in Fahrenheit
  * getTemp("h") will return humidity
 */
float getTemp(String req)
{

  // Reading temperature or humidity takes about 250 milliseconds!
  // Sensor readings may also be up to 2 seconds 'old' (its a very slow sensor)
  float h = dht.readHumidity();
  // Read temperature as Celsius (the default)
  float t = dht.readTemperature();
  // Read temperature as Fahrenheit (isFahrenheit = true)
  float f = dht.readTemperature(true);

  // Compute heat index in Fahrenheit (the default)
  float hif = dht.computeHeatIndex(f, h);
  // Compute heat index in Celsius (isFahreheit = false)
  float hic = dht.computeHeatIndex(t, h, false);

  // Check if any reads failed and exit early (to try again).
  if (isnan(h) || isnan(t) || isnan(f)) {
    Serial.println("Failed to read from DHT sensor!");
    return 0.0;
  }
  // Compute heat index in Kelvin 
  float k = t + 273.15;
  if(req =="c"){
    return t;//return Celsius
  }else if(req =="f"){
    return f;// return Fahrenheit
  }else if(req =="h"){
    return h;// return humidity
  }else if(req =="hif"){
    return hif;// return heat index in Fahrenheit
  }else if(req =="hic"){
    return hic;// return heat index in Celsius
  }else if(req =="k"){
    return k;// return temperature in Kelvin
  }else{
    return 0.000;// if no request found, return 0.000
  }
 
}