First commit

ESP_Kor/src/main.cpp

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+#include <Arduino.h>
+#include <ArduinoOTA.h>
+#include <Ticker.h>
+#include <AsyncMqttClient.h>
+#include "SdsDustSensor.h"
+
+#define WIFI_SSID "wf-home"
+#define WIFI_PASSWORD "0ndthnrf"
+#define MQTT_SERV "192.168.1.250"
+
+#define HOSTNAME "ESP_Kor"
+
+#define LED_WF (D0)
+#define LED_MQ (D3)
+#define LED_WRK (D4)
+
+int rxPin = D1;
+int txPin = D2;
+SdsDustSensor sds(rxPin, txPin);
+
+AsyncMqttClient mqttClient;
+Ticker mqttReconnectTimer;
+
+WiFiEventHandler wifiConnectHandler;
+WiFiEventHandler wifiDisconnectHandler;
+Ticker wifiReconnectTimer;
+
+void connectToWifi();
+void connectToMqtt();
+void onWifiConnect(const WiFiEventStationModeGotIP& event);
+void onWifiDisconnect(const WiFiEventStationModeDisconnected& event);
+void onMqttConnect(bool sessionPresent);
+void onMqttDisconnect(AsyncMqttClientDisconnectReason reason);
+void onMqttSubscribe(uint16_t packetId, uint8_t qos);
+void onMqttUnsubscribe(uint16_t packetId);
+void onMqttMessage(char* topic, char* payload, AsyncMqttClientMessageProperties properties, size_t len, size_t index, size_t total);
+void onMqttPublish(uint16_t packetId);
+
+unsigned long cRun;
+int cSec = 0;
+
+void setup()
+{
+  Serial.begin(9600);
+  WiFi.mode(WIFI_STA);
+  WiFi.hostname(HOSTNAME);
+	ArduinoOTA.onStart([]() {
+		Serial.println("ArduinoOTA start");
+	});
+	ArduinoOTA.onEnd([]() {
+		Serial.println("\nArduinoOTA end");
+	});
+	ArduinoOTA.onProgress([](unsigned int progress, unsigned int total) {
+		Serial.printf("OTA Progress: %u%%\r", (progress / (total / 100)));
+	});
+	ArduinoOTA.onError([](ota_error_t error) {
+		Serial.printf("Error[%u]: ", error);
+		if (error == OTA_AUTH_ERROR) {
+			Serial.println("Auth Failed");
+		} else if (error == OTA_BEGIN_ERROR) {
+			Serial.println("Begin Failed");
+		} else if (error == OTA_CONNECT_ERROR) {
+			Serial.println("Connect Failed");
+		} else if (error == OTA_RECEIVE_ERROR) {
+			Serial.println("Receive Failed");
+		} else if (error == OTA_END_ERROR) {
+			Serial.println("End Failed");
+		}
+	});
+	ArduinoOTA.begin();
+
+	wifiConnectHandler = WiFi.onStationModeGotIP(onWifiConnect);
+	wifiDisconnectHandler = WiFi.onStationModeDisconnected(onWifiDisconnect);
+
+	mqttClient.onConnect(onMqttConnect);
+	mqttClient.onDisconnect(onMqttDisconnect);
+	mqttClient.onSubscribe(onMqttSubscribe);
+	mqttClient.onUnsubscribe(onMqttUnsubscribe);
+	mqttClient.onMessage(onMqttMessage);
+	mqttClient.onPublish(onMqttPublish);
+	mqttClient.setServer(MQTT_SERV, 1883);
+
+  sds.begin();
+
+  // Serial.println(sds.queryFirmwareVersion().toString()); // prints firmware version
+  // Serial.println(sds.setActiveReportingMode().toString()); // ensures sensor is in 'active' reporting mode
+  // Serial.println(sds.setCustomWorkingPeriod(3).toString()); // sensor sends data every 3 minutes
+  sds.setActiveReportingMode();
+  sds.setCustomWorkingPeriod(1);
+
+  pinMode(LED_WF, OUTPUT);
+  pinMode(LED_MQ, OUTPUT);
+  pinMode(LED_WRK, OUTPUT);
+  digitalWrite(LED_WF, HIGH);
+  digitalWrite(LED_MQ, HIGH);
+
+  cRun = millis();
+}
+
+void loop()
+{
+	//static bool lwork = false;
+  static unsigned long stled = millis();
+	ArduinoOTA.handle();
+  if(cRun + 999 < millis()){
+    cRun = millis();
+    PmResult pm = sds.readPm();
+    if((stled + 300) < millis()) digitalWrite(LED_WRK, LOW);
+    //lwork = !lwork;
+    cSec++;
+    if (pm.isOk()) {
+      if(mqttClient.connected()){
+        digitalWrite(LED_WRK, HIGH);
+        stled = millis();
+        char v[6];
+        sprintf(v, "%.1f", pm.pm25);
+        mqttClient.publish("/home/kor/pm25", 1, false, v);
+        sprintf(v, "%.1f", pm.pm10);
+        mqttClient.publish("/home/kor/pm10", 1, false, v);
+      }
+      Serial.print(cRun); Serial.print("\t");
+      Serial.print("PM2.5 = ");
+      Serial.print(pm.pm25);
+      Serial.print(", PM10 = ");
+      Serial.println(pm.pm10);
+
+      cSec = 0;
+    }
+  }
+}
+
+void connectToWifi() {
+  Serial.println("Connecting to Wi-Fi...");
+  WiFi.begin(WIFI_SSID, WIFI_PASSWORD);
+}
+
+void connectToMqtt() {
+  Serial.println("Connecting to MQTT...");
+  mqttClient.connect();
+}
+
+void onWifiConnect(const WiFiEventStationModeGotIP& event) {
+  Serial.println("Connected to Wi-Fi.");
+  Serial.print("IP: ");
+  Serial.println(WiFi.localIP());
+  connectToMqtt();
+  digitalWrite(LED_WF, LOW);
+}
+
+void onWifiDisconnect(const WiFiEventStationModeDisconnected& event) {
+  Serial.println("Disconnected from Wi-Fi.");
+  mqttReconnectTimer.detach(); // ensure we don't reconnect to MQTT while reconnecting to Wi-Fi
+  wifiReconnectTimer.once(2, connectToWifi);
+  digitalWrite(LED_WF, HIGH);
+}
+
+void onMqttConnect(bool sessionPresent) {
+  Serial.println("Connected to MQTT.");
+  Serial.print("Session present: ");
+  Serial.println(sessionPresent);
+  digitalWrite(LED_MQ, LOW);
+}
+
+void onMqttDisconnect(AsyncMqttClientDisconnectReason reason) {
+  //Serial.println("Disconnected from MQTT.");
+
+  if (WiFi.isConnected()) {
+    mqttReconnectTimer.once(2, connectToMqtt);
+  }
+  digitalWrite(LED_MQ, HIGH);
+}
+
+void onMqttSubscribe(uint16_t packetId, uint8_t qos) {
+  Serial.println("Subscribe acknowledged.");
+  Serial.print("  packetId: ");
+  Serial.println(packetId);
+  Serial.print("  qos: ");
+  Serial.println(qos);
+}
+
+void onMqttUnsubscribe(uint16_t packetId) {
+  Serial.println("Unsubscribe acknowledged.");
+  Serial.print("  packetId: ");
+  Serial.println(packetId);
+}
+
+void onMqttMessage(char* topic, char* payload, AsyncMqttClientMessageProperties properties, size_t len, size_t index, size_t total) {
+}
+
+void onMqttPublish(uint16_t packetId) {
+  Serial.println("Publish acknowledged.");
+  Serial.print("  packetId: ");
+  Serial.println(packetId);
+}