Delete Kode ESP32 Client
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#include <SPI.h>
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#include <LoRa.h>
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#include <DHT.h>
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#define LORA_SS 5
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#define LORA_RST 14
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#define LORA_DIO0 2
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#define RELAY_PIN 27
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#define FIRE_SENSOR_PIN 33
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#define MQ2_SENSOR_PIN 26
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#define DHTPIN 4
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#define DHTTYPE DHT11
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#define SOIL_SENSOR_PIN 25
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DHT dht(DHTPIN, DHTTYPE);
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bool pengirimanAktif = true;
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bool relayAktifKarenaKebakaran = false;
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int lastRelayState = LOW;
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unsigned long lastSendTime = 0;
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const unsigned long interval = 1000;
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void setup() {
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delay(3000);
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Serial.begin(115200);
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while (!Serial)
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;
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Serial.println("Memulai setup...");
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pinMode(RELAY_PIN, OUTPUT);
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digitalWrite(RELAY_PIN, LOW);
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Serial.println("Relay diset LOW");
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pinMode(FIRE_SENSOR_PIN, INPUT);
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pinMode(MQ2_SENSOR_PIN, INPUT);
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dht.begin();
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LoRa.setPins(LORA_SS, LORA_RST, LORA_DIO0);
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delay(1000);
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if (!LoRa.begin(433E6)) {
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Serial.println("Gagal memulai LoRa");
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while (1)
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;
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}
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Serial.println("LoRa siap mengirim");
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}
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void loop() {
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if (Serial.available()) {
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String cmd = Serial.readStringUntil('\n');
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cmd.trim();
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if (cmd == "pause") {
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pengirimanAktif = false;
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Serial.println("Pengiriman LoRa dihentikan");
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} else if (cmd == "resume") {
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pengirimanAktif = true;
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Serial.println("Pengiriman LoRa dilanjutkan");
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}
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}
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int fireDigital = digitalRead(FIRE_SENSOR_PIN);
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int asapDigital = digitalRead(MQ2_SENSOR_PIN);
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float suhuC = dht.readTemperature();
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int soilRaw = analogRead(SOIL_SENSOR_PIN);
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int kelembabanTanah = map(soilRaw, 1949, 4095, 100, 0);
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kelembabanTanah = constrain(kelembabanTanah, 0, 100);
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String statusApi = (fireDigital == LOW) ? "iya" : "tidak";
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String statusAsap = (asapDigital == LOW) ? "iya" : "tidak";
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bool suhuTinggi = suhuC > 40.0;
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String statusKebakaran = "tidak";
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if (fireDigital == LOW && asapDigital == LOW && suhuTinggi) {
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statusKebakaran = "iya";
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} else {
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statusKebakaran = "tidak";
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}
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Serial.println("Sensor:");
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Serial.println(" - Api: " + String(fireDigital == LOW ? "iya" : "tidak"));
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Serial.println(" - Asap: " + String(asapDigital == LOW ? "iya" : "tidak"));
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Serial.println(" - Suhu: " + String(suhuC, 1) + "C");
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Serial.println(" - Tanah: " + String(kelembabanTanah) + "%");
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if (statusKebakaran == "iya") {
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digitalWrite(RELAY_PIN, HIGH);
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relayAktifKarenaKebakaran = true;
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Serial.println("Kebakaran terdeteksi! Relay ON");
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} else if (relayAktifKarenaKebakaran && fireDigital == HIGH) {
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Serial.println("Api padam");
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delay(300);
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digitalWrite(RELAY_PIN, LOW);
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relayAktifKarenaKebakaran = false;
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Serial.println("Relay dimatikan otomatis setelah api padam");
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} else {
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digitalWrite(RELAY_PIN, LOW);
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relayAktifKarenaKebakaran = false;
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Serial.println("Kondisi aman - Relay OFF");
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}
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if (millis() - lastSendTime > interval) {
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lastSendTime = millis();
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String apiStr = (fireDigital == LOW ? "iya" : "tidak");
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String asapStr = (asapDigital == LOW ? "iya" : "tidak");
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String suhuStr = isnan(suhuC) ? "nanC" : String(suhuC, 1) + "C";
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String tanahStr = String(kelembabanTanah) + "%";
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String relayStr = (digitalRead(RELAY_PIN) ? "ON" : "OFF");
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String data = "api:" + apiStr + ",asap:" + asapStr + ",suhu:" + suhuStr + ",tanah:" + tanahStr + ",relay:" + relayStr;
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String statusGabungan = "Status: " + statusApi + " - Relay " + relayStr;
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if (pengirimanAktif) {
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kirimLoRa(data);
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delay(1000),
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kirimLoRa(statusGabungan);
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delay(1000);
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Serial.println("Data dikirim:\n" + data);
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Serial.println("Status dikirim:\n" + statusGabungan);
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}
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}
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if (pengirimanAktif) {
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kirimLoRa("kebakaran:" + statusKebakaran);
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delay(300);
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Serial.println("Status kebakaran dikirim: kebakaran:" + statusKebakaran);
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}
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delay(400);
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}
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void kirimLoRa(String pesan) {
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Serial.println("LoRa kirim:\n" + pesan);
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LoRa.beginPacket();
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LoRa.print(pesan);
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LoRa.endPacket();
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delay(100);
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}
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