Humidity & Temperature sensor - Sensor Kelembapan dan Suhu dengan Arduino

Cara membuat atau merakit Humidity & Temperature sensor - Sensor Kelembapan dan Suhu dengan Arduino Uno R3.

Wiring:

LCD
1. GND LCD ke GND Arduino
2. VCC LCD ke 5V Arduino
3. SDA LCD ke Pin A4 Arduino
3. SCL LCD ke Pin A5 Arduino

Sensor
1. VCC Sensor ke Pin 3 Arduino
2. DATA Sensor ke Pin 2 Arduino
3. GND Sensor ke GND Arduino

LED
1. (+) Led ke Pin 11 Arduino
2. (-) Led ke Pin GND Arduino

Code:

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#include <LiquidCrystal_I2C.h>

LiquidCrystal_I2C lcd(0x27,16,2);  // GANTI 0x3F Ke 0x27 kalau LCD ga muncul

#include <DHT.h>

DHT dht(2, DHT11); //Pin, Jenis DHT

int led2 = 11;

int powerPin = 3;    // untuk pengganti VCC/5vOLT

void setup(){

  pinMode(LED_BUILTIN, OUTPUT);

  pinMode(led2, OUTPUT);

  lcd.init();

  // Print a message to the LCD.

  lcd.backlight(); 

  // jadikan pin power sebagai output

  pinMode(powerPin, OUTPUT);

  // default bernilai LOW

  digitalWrite(powerPin, LOW);

 Serial.begin(9600);

 dht.begin();

}

 

void loop(){

 digitalWrite(powerPin, HIGH);

  

 float kelembaban = dht.readHumidity();

 float suhu = dht.readTemperature();

 Serial.print("kelembaban: ");

 Serial.print(kelembaban);

 Serial.print(" ");

 Serial.print("suhu: ");

 Serial.println(suhu);

 

  lcd.clear();

  lcd.setCursor(0,0);

  lcd.print("Kelembaban: ");

  lcd.setCursor(11,0);

  lcd.print(kelembaban);

  lcd.setCursor(0,1);

  lcd.print("Suhu: ");

  lcd.setCursor(5,1);

  lcd.print(suhu);

      if (kelembaban < 75) {digitalWrite(LED_BUILTIN, HIGH);// turn the LED on (HIGH is the voltage level)

       }else {digitalWrite(LED_BUILTIN, LOW);// change humidity threshold (default is 55 percent)

           

       }

 if (suhu > 26) {digitalWrite(led2, HIGH);// turn the LED on (HIGH is the voltage level)

       }else {digitalWrite(led2, LOW); // change temperature threshold (default is 31.2 c)

   }

  delay(1000);

}

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