Smart Irrigation — Latsitarda PoltekSSN

/* * Smart Irrigation * Latsitarda * Politeknik Siber dan Sandi Negara */ #include <ESP8266WiFi.h> // Pins for board ESP8266 Wemos-NodeMCU #include <PubSubClient.h> #include <WiFiClientSecure.h> ////////////// //---- WiFi settings // GANTI nilai di bawah ini dengan kredensial WiFi Anda sendiri. // Jangan commit kredensial asli ke repository publik. const char* ssid = "YOUR_WIFI_SSID"; const char* password = "YOUR_WIFI_PASSWORD"; //---- MQTT Broker settings // GANTI dengan detail cluster HiveMQ Cloud Anda sendiri. const char* mqtt_server = "YOUR_HIVEMQ_CLUSTER_URL"; // contoh: xxxxxxxxxxxx.s2.eu.hivemq.cloud const char* mqtt_username = "YOUR_MQTT_USERNAME"; const char* mqtt_password = "YOUR_MQTT_PASSWORD"; const int mqtt_port =8883; const char* sensor1_topic= "solok/humidity2"; // Sensor Soil Humidity int sensor1 = A0; int led = D5; //pin LED bool led_state = false; // status LED, false untuk mati dan true untuk nyala WiFiClientSecure espClient; // for no secure connection use WiFiClient instead of WiFiClientSecure //WiFiClient espClient; PubSubClient client(espClient); unsigned long lastMsg = 0; #define MSG_BUFFER_SIZE (50) char msg[MSG_BUFFER_SIZE]; static const char *root_ca PROGMEM = R"EOF( -----BEGIN CERTIFICATE----- MIIFazCCA1OgAwIBAgIRAIIQz7DSQONZRGPgu2OCiwAwDQYJKoZIhvcNAQELBQAw TzELMAkGA1UEBhMCVVMxKTAnBgNVBAoTIEludGVybmV0IFNlY3VyaXR5IFJlc2Vh cmNoIEdyb3VwMRUwEwYDVQQDEwxJU1JHIFJvb3QgWDEwHhcNMTUwNjA0MTEwNDM4 WhcNMzUwNjA0MTEwNDM4WjBPMQswCQYDVQQGEwJVUzEpMCcGA1UEChMgSW50ZXJu ZXQgU2VjdXJpdHkgUmVzZWFyY2ggR3JvdXAxFTATBgNVBAMTDElTUkcgUm9vdCBY MTCCAiIwDQYJKoZIhvcNAQEBBQADggIPADCCAgoCggIBAK3oJHP0FDfzm54rVygc h77ct984kIxuPOZXoHj3dcKi/vVqbvYATyjb3miGbESTtrFj/RQSa78f0uoxmyF+ 0TM8ukj13Xnfs7j/EvEhmkvBioZxaUpmZmyPfjxwv60pIgbz5MDmgK7iS4+3mX6U A5/TR5d8mUgjU+g4rk8Kb4Mu0UlXjIB0ttov0DiNewNwIRt18jA8+o+u3dpjq+sW T8KOEUt+zwvo/7V3LvSye0rgTBIlDHCNAymg4VMk7BPZ7hm/ELNKjD+Jo2FR3qyH B5T0Y3HsLuJvW5iB4YlcNHlsdu87kGJ55tukmi8mxdAQ4Q7e2RCOFvu396j3x+UC B5iPNgiV5+I3lg02dZ77DnKxHZu8A/lJBdiB3QW0KtZB6awBdpUKD9jf1b0SHzUv KBds0pjBqAlkd25HN7rOrFleaJ1/ctaJxQZBKT5ZPt0m9STJEadao0xAH0ahmbWn OlFuhjuefXKnEgV4We0+UXgVCwOPjdAvBbI+e0ocS3MFEvzG6uBQE3xDk3SzynTn jh8BCNAw1FtxNrQHusEwMFxIt4I7mKZ9YIqioymCzLq9gwQbooMDQaHWBfEbwrbw qHyGO0aoSCqI3Haadr8faqU9GY/rOPNk3sgrDQoo//fb4hVC1CLQJ13hef4Y53CI rU7m2Ys6xt0nUW7/vGT1M0NPAgMBAAGjQjBAMA4GA1UdDwEB/wQEAwIBBjAPBgNV HRMBAf8EBTADAQH/MB0GA1UdDgQWBBR5tFnme7bl5AFzgAiIyBpY9umbbjANBgkq hkiG9w0BAQsFAAOCAgEAVR9YqbyyqFDQDLHYGmkgJykIrGF1XIpu+ILlaS/V9lZL ubhzEFnTIZd+50xx+7LSYK05qAvqFyFWhfFQDlnrzuBZ6brJFe+GnY+EgPbk6ZGQ 3BebYhtF8GaV0nxvwuo77x/Py9auJ/GpsMiu/X1+mvoiBOv/2X/qkSsisRcOj/KK NFtY2PwByVS5uCbMiogziUwthDyC3+6WVwW6LLv3xLfHTjuCvjHIInNzktHCgKQ5 ORAzI4JMPJ+GslWYHb4phowim57iaztXOoJwTdwJx4nLCgdNbOhdjsnvzqvHu7Ur TkXWStAmzOVyyghqpZXjFaH3pO3JLF+l+/+sKAIuvtd7u+Nxe5AW0wdeRlN8NwdC jNPElpzVmbUq4JUagEiuTDkHzsxHpFKVK7q4+63SM1N95R1NbdWhscdCb+ZAJzVc oyi3B43njTOQ5yOf+1CceWxG1bQVs5ZufpsMljq4Ui0/1lvh+wjChP4kqKOJ2qxq 4RgqsahDYVvTH9w7jXbyLeiNdd8XM2w9U/t7y0Ff/9yi0GE44Za4rF2LN9d11TPA mRGunUHBcnWEvgJBQl9nJEiU0Zsnvgc/ubhPgXRR4Xq37Z0j4r7g1SgEEzwxA57d emyPxgcYxn/eR44/KJ4EBs+lVDR3veyJm+kXQ99b21/+jh5Xos1AnX5iItreGCc= -----END CERTIFICATE----- )EOF"; //========================================== void setup_wifi() { delay(10); Serial.print("\nConnecting to "); Serial.println(ssid); WiFi.mode(WIFI_STA); WiFi.begin(ssid, password); while (WiFi.status() != WL_CONNECTED) { delay(500); Serial.print("."); } randomSeed(micros()); Serial.println("\nWiFi connected\nIP address: "); Serial.println(WiFi.localIP()); } //===================================== void reconnect() { // Loop until we're reconnected while (!client.connected()) { Serial.print("Attempting MQTT connection..."); String clientId = "ESP8266Client-"; // Create a random client ID clientId += String(random(0xffff), HEX); // Attempt to connect if (client.connect(clientId.c_str(), mqtt_username, mqtt_password)) { Serial.println("connected"); // subscribe the topics here //client.subscribe(command2_topic); // subscribe the topics here } else { Serial.print("failed, rc="); Serial.print(client.state()); Serial.println(" try again in 5 seconds"); // Wait 5 seconds before retrying delay(5000); } } } //================================================ setup void setup() { pinMode(led, OUTPUT); pinMode(2, OUTPUT); Serial.begin(9600); while (!Serial) delay(1); setup_wifi(); pinMode(BUILTIN_LED, OUTPUT); // Initialize the BUILTIN_LED pin as an output #ifdef ESP8266 espClient.setInsecure(); #else // for the ESP32 espClient.setCACert(root_ca); // enable this line and the the "certificate" code for secure connection #endif client.setServer(mqtt_server, mqtt_port); } //================================================ loop void loop() { digitalWrite(2, HIGH); digitalWrite(led, led_state); // mengatur output pada pin LED sesuai dengan status LED led_state = !led_state; // mengubah status LED menjadi kebalikannya if (!client.connected()) reconnect(); client.loop(); int sensor_value = analogRead(sensor1); float moisturePercent = ((sensor_value - 288.00) / (1024.00-288.00)) * 100.00; //konversi dari bacaan sensor kelembaban tanah ke Rh : Rh = ((Bacaan Sensor - Nilai Minimum)/(Nilai Maksimum - Nilai Minimum)) x 100 //float moisturePercent = ((1024 - sensor_value) / 1024.00) * 100.00; // konversi nilai sensor kelembaban tanah ke dalam persentase publishMessage(sensor1_topic,String(moisturePercent),true); delay(10000); } //======================================= publising as string void publishMessage(const char* topic, String payload , boolean retained){ if (client.publish(topic, payload.c_str(), true)) Serial.println("Message publised ["+String(topic)+"]: "+payload); }

Connecting to YOUR_WIFI_SSID ..... WiFi connected IP address: 192.168.1.23 Attempting MQTT connection...connected Message publised [solok/humidity2]: 42.35 Message publised [solok/humidity2]: 41.90