Muhammad al-xorazmiy nomidagi toshkent axborot texnologiyalari universtiteti farg’ona filiali “axborot texnologiyalari” kafedrasi

Laboratoriya ishi 13: DHT11 temperatura datchikini ulashni o’rganish
Ishni bajarish uchun kerak bo’ladigan vositalar:

1. 
   Arduino
   
2. 
   USB port kabeli
   
3. 
   Breadboard
   
4. 
   Simlar
   
5. 
   DHT11 temperatura datchigi
   

Laboratoriya ishini bajarish
1. Quyidagi sxemani yeg’ing

DHT11 temperaturani sezuvchi datchikning 3ta chiqish pini mavjud bular VCC, DATA, GND. Datchik 3.5-5vda ishlaydi va DATA esa signal chiquvchi oyoq hisoblanadi. Ushbu datchikning temperaturani sezish darajasi 0-50 gradusgachadir.

2. 
   Sxemani tekshirib korish:
   

-Dastlab, ushbu terilgan sxemani qurilmalarni to’g’ri o’rnatilganligini yaxshilab tekshirib ko’ring.
-Barchasi to’g’ri ekanligiga ishonch xosil qilingandan so’ng uni arduinoga bog’lang
-So’ng arduinoga USB port orqali barcha kodni yuklang
-Jarayonni kuzating xatoliklar mavjud bo’lsa qaytadan ko’rib chiqing

2. 
   Ishni bajarish:
   

Hozirgi proyektimizni rasmda ko’rsatilganidek terib chiqing va quyidagi kodni kiriting
#include
// for DHT11,
// VCC: 5V or 3V
// GND: GND // DATA: 2 int pinDHT11 = 2; SimpleDHT11 dht11;
void setup() { Serial.begin(9600);
}
void loop() {
// Ishlashni boshlash...
Serial.println("=================================");
Serial.println("Sample DHT11...");
// tugallanmagan namuna ma’lumoti bilan o’qing byte temperature = 0; byte humidity = 0; byte data[40] = {0};
if (dht11.read(pinDHT11, &temperature, &humidity, data)) {
Serial.print("Read DHT11 failed"); return;b
}
Serial.print("Sample RAW Bits: "); for (int i = 0; i < 40; i++) { Serial.print((int)data[i]); if (i > 0 && ((i + 1) % 4) == 0) {