Membuat Alat Pengukur Kecepatan Angin (Anemometer) wind speed dan Pengukur Suhu DS18B20 ARDUINO

Membuat Alat Pengukur Kecepatan Angin (Anemometer) wind speed dan Pengukur Suhu DS18B20 ARDUINO

          Pada kesempatan kali ini saya akan menjelaskan mengenai bagaimana caranya membuat sebuah alat yang dapat mengukur kecepatan angin dan suhu secara realtime menggunakan arduino, jadi alat ini terdapat dua buah sensor yaitu sensor anemometer dan sensor suhu ds18b20 dengan output lcd 16x2, selain itu juga terdapat indikator berupa led dan buzzer. untuk lebih jelasnya berikut adalah skema dan programnya. 

a. Arduino Uno

b. Sensor Kecepatan Angin

c. Sensor Suhu ds18b20

d. LCD 16x2

e. Program Arduino IDE

#include <OneWire.h>
#include <Wire.h>  // i2C Conection Library
#include <LiquidCrystal_I2C.h>  //i2C LCD Library

//LiquidCrystal_I2C lcd(0x27, 16, 2);
LiquidCrystal_I2C lcd(0x3F, 16, 2);

OneWire  ds(4);  // on pin 10 (a 4.7K resistor is necessary)


volatile byte half_revolutions; //variabel tipe data byte
unsigned int rpmku; //variabel tipe data integer
unsigned long timeold; //variabel tipe data long

int kalibrasi; //variabel tipe data integer

int ledsuhum = A2;
int ledsuhuk = A1;
int ledsuhuh = A0;

int ledrpmm = 5;
int ledrpmk = 6;
int ledrpmh = 7;
int buzp = 8;
int buzm = 11;


void setup() {
 
  pinMode(ledsuhum,OUTPUT);
  pinMode(ledsuhuk,OUTPUT);
  pinMode(ledsuhuh,OUTPUT);
 
  pinMode(ledrpmm,OUTPUT);
  pinMode(ledrpmk,OUTPUT);
  pinMode(ledrpmh,OUTPUT);
 
  pinMode(buzp,OUTPUT);
  pinMode(buzm,OUTPUT);
 
   attachInterrupt(0, rpm_fun, RISING); //mengambil sinyal high pada pin 2
   half_revolutions = 0; //memberikan nilai 0 pada viariabel
   rpmku = 0;
   timeold = 0;
   kalibrasi = 0;
 
  Serial.begin(9600);
  lcd.begin();
  lcd.clear();
  lcd.noCursor();

}

void loop() {
  byte i;
  byte present = 0;
  byte type_s;
  byte data[12];
  byte addr[8];
  float celsius, fahrenheit;

  if ( !ds.search(addr)) {
    ds.reset_search();
    delay(250);
    return;
  }

  for( i = 0; i < 8; i++) {

  }

  if (OneWire::crc8(addr, 7) != addr[7]) {
      return;
  }

  switch (addr[0]) {
    case 0x10:
      type_s = 1;
      break;
    case 0x28:
      type_s = 0;
      break;
    case 0x22:
      type_s = 0;
      break;
    default:
      return;
  }

  ds.reset();
  ds.select(addr);
  ds.write(0x44, 1);        // start conversion, with parasite power on at the end

  delay(1000);     // maybe 750ms is enough, maybe not

  present = ds.reset();
  ds.select(addr); 
  ds.write(0xBE);         // Read Scratchpad

  for ( i = 0; i < 9; i++) {           // we need 9 bytes
    data[i] = ds.read();
  }

  int16_t raw = (data[1] << 8) | data[0];
  if (type_s) {
    raw = raw << 3; // 9 bit resolution default
    if (data[7] == 0x10) {
      raw = (raw & 0xFFF0) + 12 - data[6];
    }
  } else {
    byte cfg = (data[4] & 0x60);
    if (cfg == 0x00) raw = raw & ~7;  // 9 bit resolution, 93.75 ms
    else if (cfg == 0x20) raw = raw & ~3; // 10 bit res, 187.5 ms
    else if (cfg == 0x40) raw = raw & ~1; // 11 bit res, 375 ms

  }
 
  celsius = (float)raw / 16.0;
  fahrenheit = celsius * 1.8 + 32.0;

  rpmku = 30*1000/(millis() - timeold)*half_revolutions; //mengaktifkan counter millis
  timeold = millis(); //hasil counter dimasukkan ke variabel timeold
  half_revolutions = 0; //reset variabel
 
  kalibrasi = (rpmku - 150)/109;  //rumus kalibrasi
 
  if(kalibrasi == 599){
  kalibrasi = 0;
  }
  if(kalibrasi == 600){
  kalibrasi = 0;
  }
 
  lcd.setCursor(0, 0);
  lcd.print("Suhu=");
  lcd.print(celsius);
  lcd.print("      ");

  lcd.setCursor(0, 1);
  lcd.print("Kec=");
  lcd.print(kalibrasi);
  lcd.print(" m/s ");


if(celsius > 35){
digitalWrite(ledsuhum,LOW);
digitalWrite(ledsuhuk,HIGH);
digitalWrite(ledsuhuh,HIGH);
  lcd.setCursor(12, 0);
  lcd.print("HIGH ");
}
if((celsius >= 30)&&(celsius <= 35)){
digitalWrite(ledsuhum,HIGH);
digitalWrite(ledsuhuk,LOW);
digitalWrite(ledsuhuh,HIGH);
  lcd.setCursor(12, 0);
  lcd.print("LOW  ");
}
if(celsius < 30){
digitalWrite(ledsuhum,HIGH);
digitalWrite(ledsuhuk,HIGH);
digitalWrite(ledsuhuh,LOW);
  lcd.setCursor(12, 0);
  lcd.print("LOW  ");
}


if(kalibrasi > 20){
digitalWrite(ledrpmm,LOW);
digitalWrite(ledrpmk,HIGH);
digitalWrite(ledrpmh,HIGH);
digitalWrite(buzp,HIGH);
digitalWrite(buzm,LOW);
  lcd.setCursor(12, 1);
  lcd.print("HIGH");

}
if((kalibrasi >= 10)&&(kalibrasi <= 20)){
digitalWrite(ledrpmm,HIGH);
digitalWrite(ledrpmk,LOW);
digitalWrite(ledrpmh,HIGH);
digitalWrite(buzp,LOW);
digitalWrite(buzm,LOW);
  lcd.setCursor(12, 1);
  lcd.print("LOW  ");
}
if(kalibrasi < 10){
digitalWrite(ledrpmm,HIGH);
digitalWrite(ledrpmk,HIGH);
digitalWrite(ledrpmh,LOW);
digitalWrite(buzp,LOW);
digitalWrite(buzm,LOW);
  lcd.setCursor(12, 1);
  lcd.print("LOW  ");
}

}


void rpm_fun(){
   half_revolutions++; //counter interupt
}

f. VIDEO HASILNYA