การวัดอุณหภูมิและความชื้น

อุปกรณ์

1.NodeMcu V3 CH340 Lua WIFI ESP8266-12E

2.DHT11 เซ็นเซอร์วัดอุณหภูมิและความชื้น พร้อม PCB แถมสายไฟ

>>โหลดไลบารี่ของอุปกรณ์ <<

โค้ด

#include "DHT.h"

DHT dht;

void setup()

{

  Serial.begin(9600);

  Serial.println();

  Serial.println("Status\tHumidity (%)\tTemperature (C)\t(F)");

  dht.setup(2);

}

void loop()

{

  delay(dht.getMinimumSamplingPeriod());

  float humidity = dht.getHumidity(); 

  float temperature = dht.getTemperature(); 

  Serial.print(dht.getStatusString());

  Serial.print("\t");

  Serial.print(humidity, 1);

  Serial.print("\t\t");

  Serial.print(temperature, 1);

  Serial.print("\t\t");

  Serial.println(dht.toFahrenheit(temperature), 1);

  delay(1000);

}

-----------------------------------------------------------------------------

#define BLYNK_PRINT Serial

#include <ESP8266WiFi.h>

#include <BlynkSimpleEsp8266.h>

#include "DHT.h"

DHT dht;

char auth[] = "M-Ee2Vubx7Pf5DbN8_5SFvSAjkSCNB_0";

char ssid[] = "MR DOM";

char pass[] = "audomidea2019";

void setup()

{

  Serial.begin(9600);

  Blynk.begin(auth, ssid, pass);

  Serial.println();

  Serial.println("Status\tHumidity (%)\tTemperature (C)\t(F)");

  dht.setup(D4); 

}

void loop()

{

  delay(dht.getMinimumSamplingPeriod());

  float humidity = dht.getHumidity(); // ดึงค่าความชื้น

  float temperature = dht.getTemperature(); // ดึงค่าอุณหภูมิ

  Serial.print(dht.getStatusString());

  Serial.print("\t");

  Serial.print(humidity, 1);

  Serial.print("\t\t");

  Serial.print(temperature, 1);

  Serial.print("\t\t");

  Serial.println(dht.toFahrenheit(temperature), 1);

  Blynk.run();

  delay(100);

  Blynk.virtualWrite(V0, temperature);

  Blynk.virtualWrite(V1, humidity);

}