NodeMCU ESP8266 สัปดาห์ที่ 8

 

ระบบชลประทานอัจฉริยะที่ใช้ IoT

โครงงานนี้เกี่ยวกับการชลประทานอัจฉริยะบน IoT ซึ่งเราใช้เซ็นเซอร์ความชื้นในดินและ nodemcu

// BLYNK LIBRARY

// https://github.com/blynkkk/blynk-library

// ESP8266 LIBRARY

// https://github.com/ekstrand/ESP8266wifi

// DHT11 SENSOR LIBRARY

// https://github.com/adafruit/DHT-sensor-library

#define BLYNK_PRINT Serial

#include <SPI.h>

#include <ESP8266WiFi.h>

#include <BlynkSimpleEsp8266.h>

#include <SimpleTimer.h>

#include <DHT.h>

#define BLYNK_PRINT Serial

#include <OneWire.h>

#include <DallasTemperature.h>

#define ONE_WIRE_BUS D2

OneWire oneWire(ONE_WIRE_BUS);

DallasTemperature sensors(&oneWire);

char auth[] =" your auth code";

char ssid[] = "your wifi ssid";

char pass[] = "your wifi password";

#define DHTPIN 2

#define DHTTYPE DHT11   // DHT11 SENSOR CONNECT D4 PIN

DHT dht(DHTPIN, DHTTYPE);

SimpleTimer timer;

void sendSensor()

{

float h = dht.readHumidity();

float t = dht.readTemperature();

if (isnan(h) || isnan(t)) {

Serial.println("Failed to read from DHT sensor!");

return;

}

Blynk.virtualWrite(V5, h); //V5 is for Humidity

Blynk.virtualWrite(V6, t); //V6 is for Temperature

}

void setup()

{

Serial.begin(9600);

Blynk.begin(auth, ssid, pass);

dht.begin();

timer.setInterval(1000L, sendSensor);

Serial.begin(115200);

Blynk.begin(auth, ssid, pass);

sensors.begin();

}

int sensor=0;

void sendTemps()

{

sensor=analogRead(A0);

sensors.requestTemperatures();

float temp = sensors.getTempCByIndex(0);

Serial.println(temp);

Serial.println(sensor);

Blynk.virtualWrite(V1, temp);

Blynk.virtualWrite(V2,sensor);

delay(1000);

}

void loop()

{

Blynk.run();

timer.run();

sendTemps();

}

ตั้งค่าแอพ Blynk:

เว็บhttps://www.hackster.io/electronicprojects/iot-based-smart-irrigation-a51ba8