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Project 7-Sensor Suhu LM35DZ, DHT22 dan tampilan LCD 16x2 i2c/Tugas_7-DHT22/Tugas_7-DHT22.ino

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+#include <DHT.h>
+#define DHTPIN 2 // what digital pin we're connected to
+#define DHTTYPE DHT22 // DHT 22 (AM2302), AM2321
+DHT dht(DHTPIN, DHTTYPE);
+void setup() {
+ Serial.begin(9600);
+ Serial.println("DHTxx Robojax test!");
+ dht.begin();
+}
+void loop() {
+ // Wait a few seconds between measurements.
+ delay(2000);
+ // Robojax.com test video
+ Serial.print("Temperature: ");
+
+ Serial.print(getTemp("c"));
+
+ Serial.print(" *C ");
+ Serial.print(getTemp("f"));
+ Serial.println (" *F");
+ Serial.println("-----------------");
+ Serial.print("Heat index: ");
+ Serial.print(getTemp("hic"));
+ Serial.print(" *C ");
+ Serial.print(getTemp("hif"));
+ Serial.println(" *F");
+ Serial.print(getTemp("k"));
+ Serial.println(" *K");
+ Serial.println("-----------------");
+ Serial.print("Humidity: ");
+ Serial.print(getTemp("h"));
+ Serial.println(" % ");
+ Serial.println("===========================");
+}
+
+float getTemp(String req)
+{
+ // Reading temperature or humidity takes about 250 milliseconds!
+ // Sensor readings may also be up to 2 seconds 'old' (its a very slow sensor)
+ float h = dht.readHumidity();
+ // Read temperature as Celsius (the default)
+ float t = dht.readTemperature();
+ // Read temperature as Fahrenheit (isFahrenheit = true)
+ float f = dht.readTemperature(true);
+ // Compute heat index in Fahrenheit (the default)
+ float hif = dht.computeHeatIndex(f, h);
+ // Compute heat index in Celsius (isFahreheit = false)
+ float hic = dht.computeHeatIndex(t, h, false);
+ // Check if any reads failed and exit early (to try again).
+ if (isnan(h) || isnan(t) || isnan(f)) {
+ Serial.println("Failed to read from DHT sensor!");
+ return;
+ }
+ // Compute heat index in Kelvin
+ float k = t + 273.15;
+ if(req =="c"){
+ return t;//return Cilsus
+ }else if(req =="f"){
+ return f;// return Fahrenheit
+ }else if(req =="h"){
+ return h;// return humidity
+ }else if(req =="hif"){
+ return hif;// return heat index in Fahrenheit
+ }else if(req =="hic"){
+ return hic;// return heat index in Cilsus
+ }else if(req =="k"){
+ return k;// return temprature in Kelvin
+ }else{
+ return 0.000;// if no reqest found, retun 0.000
+ }
+}

Project 7-Sensor Suhu LM35DZ, DHT22 dan tampilan LCD 16x2 i2c/Tugas_7-LM35/Tugas_7-LM35.ino

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+//program sensor suhu LM35
+int analogPin = A0;
+//Variabel untuk menyimpan data suhu
+
+float suhu = 00;
+int suhu1=00;
+void setup(){
+  //Komunikasi serial dengan baud 9600
+  Serial.begin(9600);
+}
+
+void loop(){
+  //Baca pin input
+  suhu1 = analogRead(analogPin);
+  //1'C = 10mV (sesuai datasheet) // 5v /1023 = 4,883 mV (5v = tegangan refrensi, 1023 = resolusi 10 bit)
+  // setiap kenaikan 1'C --> 10 / 4.883 = 2.0479
+  //sehingga didapat rumus
+  suhu = suhu1 / 2.0479;
+  //hasil pembacaan akan ditampilkan di serial monitor
+  Serial.println(suhu);
+  delay(100);
+}

Project 7-Sensor Suhu LM35DZ, DHT22 dan tampilan LCD 16x2 i2c/Tugas_7-Project/Tugas_7-Project.ino

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+#include <LiquidCrystal_I2C.h>
+#include "DHT.h"
+#define DHTPIN 2 // what digital pin we're connected to
+#define DHTTYPE DHT22 // DHT 22 (AM2302), AM2321
+LiquidCrystal_I2C lcd(0x27, 16, 2);
+DHT dht(DHTPIN, DHTTYPE);
+void setup() {
+ lcd.init();
+ lcd.backlight();
+ dht.begin();
+ lcd.print("Suhu & Kelembaban"); //Greeting
+ delay(2000);
+ lcd.clear();
+}
+void loop() {
+ delay(2000);
+ lcd.clear();
+ lcd.print("Suhu ");
+ lcd.print(getTemp("c"));
+ lcd.print("C");
+ lcd.setCursor(0,1);
+ lcd.print("Kelembaban ");
+
+ lcd.print(getTemp("h"));
+ lcd.print(" %");
+ //lcd.setCursor(0,3);
+ //lcd.print("Baris Ke 3");
+ delay(2000);
+}
+float getTemp(String req)
+{
+ // Reading temperature or humidity takes about 250 milliseconds!
+ // Sensor readings may also be up to 2 seconds 'old' (its a very slow sensor)
+ float h = dht.readHumidity();
+ // Read temperature as Celsius (the default)
+ float t = dht.readTemperature();
+ // Read temperature as Fahrenheit (isFahrenheit = true)
+ float f = dht.readTemperature(true);
+ // Compute heat index in Fahrenheit (the default)
+ float hif = dht.computeHeatIndex(f, h);
+ // Compute heat index in Celsius (isFahreheit = false)
+ float hic = dht.computeHeatIndex(t, h, false);
+ // Check if any reads failed and exit early (to try again).
+ if (isnan(h) || isnan(t) || isnan(f)) {
+ //Serial.println("Failed to read from DHT sensor!");
+ return;
+ }
+ // Compute heat index in Kelvin
+ float k = t + 273.15;
+ if(req =="c"){
+ return t;//return Cilsus
+ }else if(req =="f"){
+ return f;// return Fahrenheit
+ }else if(req =="h"){
+ return h;// return humidity
+ }else if(req =="hif"){
+ return hif;// return heat index in Fahrenheit
+ }else if(req =="hic"){
+ return hic;// return heat index in Cilsus
+ }else if(req =="k"){
+ return k;// return temprature in Kelvin
+ }else{
+ return 0.000;// if no reqest found, retun 0.000
+ }
+}