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Ch12-1_aircleaner.ino

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+#include <ESP8266WiFi.h>
+#include <PubSubClient.h>
+
+#define AIR_PIN 14
+
+const char* ssid = "                       ";
+const char* password = "                         ";
+const char* mqtt_server = "13.209.250.27";
+const char* topic = "speak_topic";
+
+WiFiClient espClient;
+PubSubClient client(espClient);
+
+long lastMsg = 0;
+char msg[50];
+int value = 0;
+
+void setup_wifi() {
+  delay(10);
+  Serial.println();
+  Serial.print("Connecting to ");
+  Serial.println(ssid);
+
+  WiFi.begin(ssid, password);
+
+  while (WiFi.status() != WL_CONNECTED) {
+    delay(500);
+    Serial.print(".");
+  }
+
+  randomSeed(micros());
+
+  Serial.println("");
+  Serial.println("WiFi connected");
+  Serial.println("IP address: ");
+  Serial.println(WiFi.localIP());
+}
+
+void callback(char* topic, byte* payload, unsigned int length) {
+  String final_string;
+
+  Serial.print("Message arrived [");
+  Serial.print(topic);
+  Serial.print("] ");
+  for (int i = 0; i < length; i++) {
+    Serial.print((char)payload[i]);
+    final_string += (char)payload[i];  
+  }
+
+  Serial.println();
+  Serial.println("-----------------------------------------");
+  Serial.println(final_string);
+  // Switch on the LED if an 1 was received as first character
+  // fix it - magiceco//
+  if (final_string == "1") {
+    //digitalWrite(BUILTIN_LED, LOW);   // Turn the LED on (Note that LOW is the voltage level
+    digitalWrite(AIR_PIN, LOW);
+    // but actually the LED is on; this is because
+    // it is acive low on the ESP-01)
+  } 
+  else if(final_string == "2") {
+    //digitalWrite(BUILTIN_LED, HIGH);// Turn the LED off by making the voltage HIGH 
+    digitalWrite(AIR_PIN, HIGH);
+  }
+
+}
+
+void reconnect() {
+  // Loop until we're reconnected
+  while (!client.connected()) {
+    Serial.print("Attempting MQTT connection...");
+    // Create a random client ID
+    String clientId = "ESP8266Client-";
+    clientId += String(random(0xffff), HEX);
+    // Attempt to connect
+    if (client.connect(clientId.c_str())) {
+      Serial.println("connected");
+      // Once connected, publish an announcement...
+      client.publish("outTopic", "hello world");
+      // ... and resubscribe
+      client.subscribe(topic);
+    } else {
+      Serial.print("failed, rc=");
+      Serial.print(client.state());
+      Serial.println(" try again in 5 seconds");
+      // Wait 5 seconds before retrying
+      delay(5000);
+    }
+  }
+}
+
+void setup() {
+  Serial.begin(115200);
+  pinMode(AIR_PIN, OUTPUT);
+  digitalWrite(AIR_PIN, LOW);
+  setup_wifi();
+  client.setServer(mqtt_server, 1883);
+  client.setCallback(callback);
+}
+
+void loop() {
+  if (!client.connected()) {
+    reconnect();
+  }
+  client.loop();
+  long now = millis();
+  if (now - lastMsg > 2000) {
+    lastMsg = now;
+    ++value;
+    snprintf (msg, 75, "hello world #%ld", value);
+    Serial.print("Publish message: ");
+    Serial.println(msg);
+    client.publish("outTopic", msg);
+  }
+}

FinedustMonitorWithGPS/FinedustMonitorWithGPS.ino

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+//
+//    FILE: FinedustMonitorWithGPS.ino
+//  AUTHOR: Jaewoong Mun (happybono@outlook.com)
+// CREATED: November 19, 2019
+//
+// Released to the public domain
+//
+
+#include <TinyGPS++.h>
+#include <SoftwareSerial.h>
+#include "RunningMedian.h"
+
+RunningMedian pm25s = RunningMedian(19);
+RunningMedian pm10s = RunningMedian(19);
+
+char* ssid = "HappyBono-GalaxyNote10+";   
+char* password = "06020688";    
+String api_key = "*2446388DA8B643EE7AA752DB64A42926444CDE2A";
+#define PLAIVE_SERVER_ENABLE
+//#define THINGSPEAK_SERVER_ENABLE
+
+boolean wifi_ready;
+float map_x, map_y;
+String s_map_x, s_map_y;
+
+TinyGPSPlus gps;
+SoftwareSerial ss(12, 13);
+SoftwareSerial dust(D1, D0, false, 256);
+
+void got_dust(int pm25, int pm10) {                  //formula for dust sensor just use!!
+   pm25 /= 10;
+   pm10 /= 10;
+   pm25s.add(pm25);
+   pm10s.add(pm10);
+   do_oled(pm25, pm10);                              //print pm25, pm10 in oled
+}
+
+
+//서버에 보내기(send server)
+void do_interval() {               
+  if (wifi_ready){
+#ifdef PLAIVE_SERVER_ENABLE
+    do_server_plaive(api_key,int(pm25s.getMedian()), int(pm10s.getMedian()), get_temperature(), s_map_x, s_map_y);
+#else
+  #ifdef THINGSPEAK_SERVER_ENABLE
+    do_server_thingspeak(api_key,int(pm25s.getMedian()), int(pm10s.getMedian()),get_temperature());
+  #else
+    do_server_default(api_key,int(pm25s.getMedian()), int(pm10s.getMedian()),get_temperature());
+  #endif
+#endif
+  } 
+                                                       //wifi is ok 
+}
+
+unsigned long mark = 0;
+boolean got_interval = false;
+
+//초기 세팅  
+void setup() {
+  Serial.begin(115200);
+  dust.begin(9600);
+  ss.begin(9600);
+  setup_oled();//oled setting
+  wifi_ready = connect_ap(ssid, password);             //wifi connection 유무
+
+  if (!wifi_ready) nowifi_oled();//wifi no connection
+  delay(5000);
+  Serial.println("\nDust Sensor Box V1.2, 2019/11/24 HappyBono");
+}
+
+//아두이노가 반복적으로 작동하는 부분
+void loop() {
+    if(ss.available()<=0){
+    Serial.println("SIGNAL STATUS : WEAK");
+    s_map_x = String(map_x,6);
+    s_map_y = String(map_y,6);
+  }
+  else{
+    while(ss.available()>0){
+      Serial.println("SIGNAL STATUS : GREAT");
+      if(gps.encode(ss.read())){
+        Serial.println("GPS READ");
+        Serial.println(ss.read());
+        if (gps.location.isValid()){
+          Serial.println("LOCATION : GREAT"); 
+          map_x = gps.location.lat(); 
+          map_y = gps.location.lng();
+         Serial.println(String(map_x,6));
+         Serial.println(String(map_y,6));
+        }
+      }
+      s_map_x = String(map_x,6);
+      s_map_y = String(map_y,6);
+      yield(); 
+    }
+  }
+  while (dust.available() > 0) {
+    do_dust(dust.read(), got_dust);
+    yield();                                          //loop 에서 while 문을 사용하는 경우 yield 를 포함해주어야 합니다.
+  }
+  //Serial.println(map_x);
+  //Serial.print("pm 25 : ");
+  //Serial.println(int(pm25s.getMedian()));
+
+  if (millis() > mark) {//one minute(60000) interval
+    mark = millis() + 60000;
+    got_interval = true;
+  }
+
+  if (got_interval) {
+    got_interval = false;
+    do_interval();
+  }
+  yield();
+}

FinedustMonitorWithGPS/RunningMedian.cpp

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+
+// FILE: RunningMedian.cpp
+// AUTHOR: Rob dot Tillaart at gmail dot com
+// VERSION: 0.1.04
+// PURPOSE: RunningMedian library for Arduino
+
+#include "RunningMedian.h"
+
+RunningMedian::RunningMedian(uint8_t size)
+{
+    _size = constrain(size, MEDIAN_MIN_SIZE, MEDIAN_MAX_SIZE);
+    // array's could be allocated by malloc here,
+    // but using fixed size is easier.
+    clear();
+}
+
+RunningMedian::RunningMedian()
+{
+    _size = MEDIAN_DEF_SIZE;
+    clear();
+}
+// resets all counters
+void RunningMedian::clear()
+{
+    _cnt = 0;
+    _idx = 0;
+    _sorted = false;
+}
+
+// adds a new value to the data-set
+// or overwrites the oldest if full.
+void RunningMedian::add(float value)
+{
+    _ar[_idx++] = value;
+    if (_idx >= _size) _idx = 0;         // wrap around
+    if (_cnt < _size) _cnt++;
+    _sorted = false;
+}
+
+float RunningMedian::getMedian()
+{
+    if (_cnt > 0)
+    {
+        if (_sorted == false) sort();
+        return _as[_cnt/2];
+    }
+    return NAN;
+}
+
+#ifdef RUNNING_MEDIAN_ALL
+float RunningMedian::getHighest()
+{
+    if (_cnt > 0)
+    {
+        if (_sorted == false) sort();
+        return _as[_cnt-1];
+    }
+    return NAN;
+}
+
+float RunningMedian::getLowest()
+{
+    if (_cnt > 0)
+    {	
+        if (_sorted == false) sort();
+        return _as[0];
+    }
+    return NAN;
+}
+
+float RunningMedian::getAverage()
+{
+    if (_cnt > 0)
+    {	
+        float sum = 0;
+        for (uint8_t i=0; i< _cnt; i++) sum += _ar[i];
+        return sum / _cnt;
+    }
+    return NAN;
+}
+
+float RunningMedian::getAverage(uint8_t nMedians)
+{
+    if ((_cnt > 0) && (nMedians > 0))
+    {
+        if (_cnt < nMedians) nMedians = _cnt;     // when filling the array for first time
+        uint8_t start = ((_cnt - nMedians)/2);
+        uint8_t stop = start + nMedians;
+        sort();
+        float sum = 0;
+        for (uint8_t i = start; i < stop; i++) sum += _as[i];
+        return sum / nMedians;
+    }
+    return NAN;
+}
+
+uint8_t RunningMedian::getSize() { return _size; };
+
+uint8_t RunningMedian::getCount() { return _cnt; };
+#endif
+
+void RunningMedian::sort()
+{
+    // copy
+    for (uint8_t i=0; i< _cnt; i++) _as[i] = _ar[i];
+
+    // sort all
+    for (uint8_t i=0; i< _cnt-1; i++)
+    {
+        uint8_t m = i;
+        for (uint8_t j=i+1; j< _cnt; j++)
+        {
+            if (_as[j] < _as[m]) m = j;
+        }
+        if (m != i)
+        {
+            float t = _as[m];                   // PATCH from 0.1.05 (was long)
+            _as[m] = _as[i];
+            _as[i] = t;
+        }
+    }
+    _sorted = true;
+}