Monitor Kecepatan Angin ( Wind Speed ) Anemometer IOT BLYNK

Monitor Kecepatan Angin ( Wind Speed ) Anemometer IOT BLYNK

            Pada kesempatan kali ini saya akan menjelaskan mengenai bagaimana cara membuat sebuah alat yang dapat memonitor kecepatan angin atau anemometer dengan menggunakan IOT Blynk 2.0 sehingga bisa dimonitor secara jarak jauh menggunakan handphone atau website. untuk lebih jelasnya berikut adalah koding dan skemanya.

a. Skema

b. Program Arduino IDE

#define BLYNK_PRINT Serial

#define BLYNK_TEMPLATE_ID "TMPL6CsQfbxxx"

#define BLYNK_TEMPLATE_NAME "monitor flow presure"

#define BLYNK_AUTH_TOKEN "aSUiRpTncCpKkoXfLqIM4Gq2ISlYPxxx"

#include <Wire.h>

#include <LiquidCrystal_I2C.h>

#include <ESP8266WiFi.h>

#include <BlynkSimpleEsp8266.h>

LiquidCrystal_I2C lcd(0x27, 16, 2);

WidgetLED led1(V1);

WidgetLED led2(V2);

WidgetLED led3(V3);

// anemometer parameters

volatile byte rpmcount; // count signals

volatile unsigned long last_micros;

unsigned long timeold;

unsigned long timemeasure = 10.00; // seconds

int timetoSleep = 1;               // minutes

unsigned long sleepTime = 15;      // minutes

unsigned long timeNow;

int countThing = 0;

int GPIO_pulse = 14; // Arduino = D5

float rpm, rps;     // frequencies

float velocity_kmh; // km/h

float velocity_ms;  //m/s

float calibration_value = 5.0; //This value is obtained from comparing with the manufacturer's anemometer sensor

volatile boolean flag = false;

float kec;

void ICACHE_RAM_ATTR rpm_anemometer()

{

  flag = true;

}

BlynkTimer timer;

char ssid[] = "hotspothpku";

char pass[] = "123456789";

void kirimdata()

{

  Blynk.virtualWrite(V0,kec);

}

void setup()

{

  pinMode(GPIO_pulse, INPUT_PULLUP);

  digitalWrite(GPIO_pulse, LOW);

  Serial.begin(9600);

  lcd.begin();

  lcd.backlight();

  lcd.clear();

  detachInterrupt(digitalPinToInterrupt(GPIO_pulse));                         // force to initiate Interrupt on zero

  attachInterrupt(digitalPinToInterrupt(GPIO_pulse), rpm_anemometer, RISING); //Initialize the intterrupt pin

  rpmcount = 0;

  rpm = 0;

  timeold = 0;

  timeNow = 0;

  Blynk.begin(BLYNK_AUTH_TOKEN, ssid, pass);

  timer.setInterval(1000L, kirimdata);

} 

void loop()

{

  if (flag == true) // don't really need the == true but makes intent clear for new users

  {

    if (long(micros() - last_micros) >= 1000)

    { // time to debounce measures

      rpmcount++;

      last_micros = micros();

    }

    flag = false; // reset flag

  }

  //Measure RPM

  if ((millis() - timeold) >= timemeasure * 1000)

  {

    countThing++;

    detachInterrupt(digitalPinToInterrupt(GPIO_pulse)); // Disable interrupt when calculating

    rps = float(rpmcount) / float(timemeasure); // rotations per second

   //velocity_ms = rps * calibration_value; // m/s

    velocity_ms = rps; // m/s

    velocity_kmh = velocity_ms * 3.6; // km/h

    lcd.setCursor(0, 0);

    lcd.print("v= ");

    lcd.print(kec);

    lcd.print(" knot ");

    kec = velocity_ms * 0.514;

    timeold = millis();

    rpmcount = 0;

    attachInterrupt(digitalPinToInterrupt(GPIO_pulse), rpm_anemometer, RISING); // enable interrupt

  }

if((velocity_ms >= 0)&&(velocity_ms < 1)){

  led1.on();

  led2.off();

  led3.off();

  lcd.setCursor(0, 1);

  lcd.print("NORMAL      ");

}

if((velocity_ms >= 1)&&(velocity_ms < 2)){

  led1.off();

  led2.on();

  led3.off();

  lcd.setCursor(0, 1);

  lcd.print("MODERATE    ");

}

if((velocity_ms >= 2)&&(velocity_ms < 3)){

  led1.off();

  led2.off();

  led3.on();

  lcd.setCursor(0, 1);

  lcd.print("UNSAFE    ");

  Blynk.logEvent("alarmx");

}

Blynk.run();

timer.run(); // Initiates BlynkTimer

} 

c. Interface Blynk 2.0

d. VIDEO HASILNYA