admin
111 lines
3.2 KiB
Arduino
111 lines
3.2 KiB
Arduino
/**
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* FarmBox LoRa Gateway
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* ESP32 или Raspberry Pi + LoRa HAT
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* Принимает пакеты от всех датчиков → публикует в MQTT
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*
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* Для ESP32: подключить к WiFi → слать в Mosquitto
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* Для RPi: запустить как Python скрипт
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*/
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#include <Arduino.h>
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#include <SPI.h>
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#include <LoRa.h>
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#include <WiFi.h>
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#include <PubSubClient.h>
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#include <ArduinoJson.h>
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// ─── WiFi (локальная сеть фермы) ──────────────────────
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const char* WIFI_SSID = "FARM_WIFI"; // ← изменить
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const char* WIFI_PASS = "farm_password"; // ← изменить
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// ─── MQTT (Mosquitto на Raspberry Pi / Mini PC) ────────
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const char* MQTT_HOST = "192.168.1.100"; // ← IP FarmBox
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const int MQTT_PORT = 1883;
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// ─── LoRa пины (TTGO LoRa32) ──────────────────────────
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#define LORA_SCK 5
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#define LORA_MISO 19
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#define LORA_MOSI 27
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#define LORA_SS 18
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#define LORA_RST 23
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#define LORA_DI0 26
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#define LORA_BAND 868E6
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WiFiClient wifiClient;
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PubSubClient mqtt(wifiClient);
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void setup() {
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Serial.begin(115200);
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Serial.println("FarmBox LoRa Gateway v1.0");
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// WiFi
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WiFi.begin(WIFI_SSID, WIFI_PASS);
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Serial.print("WiFi...");
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while (WiFi.status() != WL_CONNECTED) {
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delay(500); Serial.print(".");
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}
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Serial.printf("\nWiFi OK: %s\n", WiFi.localIP().toString().c_str());
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// MQTT
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mqtt.setServer(MQTT_HOST, MQTT_PORT);
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connectMqtt();
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// LoRa
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SPI.begin(LORA_SCK, LORA_MISO, LORA_MOSI, LORA_SS);
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LoRa.setPins(LORA_SS, LORA_RST, LORA_DI0);
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if (!LoRa.begin(LORA_BAND)) {
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Serial.println("LoRa ОШИБКА!");
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while (true);
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}
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LoRa.setSpreadingFactor(9);
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LoRa.setSignalBandwidth(125E3);
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LoRa.enableCrc();
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Serial.println("LoRa Gateway готов. Слушаю...");
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}
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void loop() {
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if (!mqtt.connected()) connectMqtt();
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mqtt.loop();
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int packetSize = LoRa.parsePacket();
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if (packetSize) {
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String received = "";
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while (LoRa.available()) received += (char)LoRa.read();
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int rssi = LoRa.packetRssi();
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float snr = LoRa.packetSnr();
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Serial.printf("[RX] RSSI:%d SNR:%.1f | %s\n", rssi, snr, received.c_str());
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// Парсим JSON и добавляем метаданные шлюза
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StaticJsonDocument<512> doc;
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if (deserializeJson(doc, received) == DeserializationError::Ok) {
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doc["gw_rssi"] = rssi;
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doc["gw_snr"] = snr;
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String enhanced;
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serializeJson(doc, enhanced);
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// Публикуем в MQTT топик farm/lora/{device_id}
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const char* deviceId = doc["id"] | "unknown";
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String topic = "farm/lora/" + String(deviceId);
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mqtt.publish(topic.c_str(), enhanced.c_str());
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Serial.printf("[MQTT] → %s\n", topic.c_str());
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}
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}
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}
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void connectMqtt() {
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while (!mqtt.connected()) {
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Serial.print("MQTT...");
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if (mqtt.connect("farmbox-gateway")) {
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Serial.println("OK");
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// Публикуем статус шлюза
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mqtt.publish("farm/status/gateway", "{\"status\":\"online\"}");
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} else {
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Serial.printf("FAIL rc=%d, retry 5s\n", mqtt.state());
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delay(5000);
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}
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}
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}
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