first commit

5.thingspeak_uno_all_sensor.ino

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+#include <SoftwareSerial.h>
+#include <DHT.h>
+
+SoftwareSerial mySerial(2, 3);
+
+const int pinSensorApi = A1;  // Pin sensor api
+const int pinSensorGas = A2;  // Pin sensor gas
+const int pinBuzzer = 11;     // Pin buzzer
+const int pinDHT = 7;         // Pin sensor DHT
+#define DHTTYPE DHT11         // Tipe sensor DHT (DHT11, DHT21, DHT22)
+DHT dht(pinDHT, DHTTYPE);
+int nilaiSensorApi = 0;
+int nilaiSensorGas = 0;
+char c;
+String data;
+
+void setup() {
+  Serial.begin(115200);
+  mySerial.begin(115200);
+  pinMode(pinSensorApi, INPUT);
+  pinMode(pinSensorGas, INPUT);
+  pinMode(pinBuzzer, OUTPUT);
+  dht.begin();
+}
+
+void loop() {
+  while (mySerial.available() > 0) {
+    delay(10);
+    c = mySerial.read();
+    data += c;
+  }
+  
+  if (data.length() > 0) {
+    Serial.println(data);
+    data = "";
+  }
+  
+  nilaiSensorApi = analogRead(pinSensorApi);
+  // Inversi nilai sensor api
+  int nilaiSensorApiInverted = 1023 - nilaiSensorApi;
+  // Serial.print("Nilai Sensor Api: ");
+  // Serial.println(nilaiSensorApiInverted);
+
+  nilaiSensorGas = analogRead(pinSensorGas);
+  // Serial.print("Nilai Sensor Gas: ");
+  // Serial.println(nilaiSensorGas);
+
+  float suhu = dht.readTemperature();
+  // Serial.print("Suhu: ");
+  // Serial.println(suhu);
+
+  if (suhu > 57) {  // Sesuaikan nilai ambang sesuai kebutuhan
+    mySerial.print(" SUHU TINGGI ");
+    Serial.println(" SUHU TINGGI ");
+    
+    // Bunyi buzzer 5 kali
+    for (int i = 0; i < 3; i++) {
+      digitalWrite(pinBuzzer, HIGH);
+      delay(500);  // Buzzer ON selama 500 ms
+      digitalWrite(pinBuzzer, LOW);
+      delay(500);  // Buzzer OFF selama 500 ms
+    }
+  }
+
+  if (nilaiSensorApiInverted > 800) {  // Sesuaikan nilai ambang sesuai kebutuhan
+    mySerial.print(" API TERDETEKSI ");
+    Serial.println(" API TERDETEKSI ");
+    
+    // Bunyi buzzer 3 kali
+    for (int i = 0; i < 3; i++) {
+      digitalWrite(pinBuzzer, HIGH);
+      delay(500);  // Buzzer ON selama 500 ms
+      digitalWrite(pinBuzzer, LOW);
+      delay(500);  // Buzzer OFF selama 500 ms
+    }
+  }
+
+  if (nilaiSensorGas > 100) {  // Sesuaikan nilai ambang sesuai kebutuhan
+    mySerial.print(" GAS BERBAHAYA TERDETEKSI ");
+    Serial.println(" GAS BERBAHAYA TERDETEKSI ");
+    
+    // Bunyi buzzer 5 kali
+    for (int i = 0; i < 3; i++) {
+      digitalWrite(pinBuzzer, HIGH);
+      delay(500);  // Buzzer ON selama 500 ms
+      digitalWrite(pinBuzzer, LOW);
+      delay(500);  // Buzzer OFF selama 500 ms
+    }
+  }
+
+  // Kirim data sensor ke ESP8266
+  data = "Sensor Api: " + String(nilaiSensorApiInverted) + " Sensor Gas: " + String(nilaiSensorGas) + " Suhu: " + String(suhu);
+  mySerial.println(data);
+
+  delay(1000);  // Mengirim data setiap 1 detik
+}