#include <WiFi.h>
#include <PubSubClient.h>
#include <Wire.h>
#include <OneWire.h>
#include <DallasTemperature.h>
#include <BluetoothSerial.h>
#include <HTTPClient.h>
#include <ArduinoJson.h>
//----------------------------------------------------------------------
#define NTP_SERVER "pool.ntp.org"
#define UTC_OFFSET 0
#define UTC_OFFSET_DST 0
//----- DS18B20 ------------------
#define DQ_Pin 4
OneWire oneWire(DQ_Pin);
DallasTemperature sensors(&oneWire);
byte data[12]; // buffer for data
byte address[8]; // 64 bit device address
//float Humidity;
float Temperature;
// ------ 以下修改成你自己的WiFi帳號密碼 ------
char* ssid = "Winson_Y52";
char* password = "8888888888";
//----PM2.5--------
String AQIBuffer;
//申請API key 環保署： https://data.epa.gov.tw/api-term
//查看空氣品質列表：https://data.epa.gov.tw/api/v2/aqx_p_432?offset=0&format=json&api_key=你的APIkey
String APIkey = "XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX"; //你的環保署網站 API Key
//String Area = "橋頭"; //希望取得空氣品質的地點
String Area = "新竹"; //希望取得空氣品質的地點
String url = "https://data.epa.gov.tw/api/v2/aqx_p_432?format=json&limit=5&api_key=" + APIkey + "&filters=SiteName,EQ," + Area ; //PM2.5的網址
// ------ 以下修改成你MQTT設定 ------
//char* MQTTServer = "mqtt.eclipseprojects.io";//免註冊MQTT伺服器
//char* MQTTServer = "test.mosquitto.org";//免註冊MQTT伺服器
char* MQTTServer = "1.tcp.cpolar.io";
int MQTTPort = 10521;//MQTT Port
char* MQTTUser = "";//
char* MQTTPassword = "";//
//推播主題1:推播溫度
char* MQTTPubTopic1 = "winsondiy/ESP32/temp";
//推播主題2:推播濕度
char* MQTTPubTopic2 = "winsondiy/ESP32/pm2.5_avg";
//訂閱主題1:改變LED燈號
char* MQTTSubTopic1 = "winsondiy/ESP32/led";
long MQTTLastPublishTime;//此變數用來記錄推播時間
long MQTTPublishInterval = 5000;//每5秒推撥一次
WiFiClient WifiClient;
PubSubClient MQTTClient(WifiClient);
unsigned long lastMsg = 0;
#define MSG_BUFFER_SIZE (50)
char msg[MSG_BUFFER_SIZE];
int value = 0;
//--------- Flag structure --------------------------------------
typedef struct _vFlag
{
uint8_t BTFlag = 0;
uint8_t DC_Flag = 0;
uint8_t CANFlag = 0;
uint8_t I2C_Flag = 0;
uint8_t RFIDWrite = 0;
uint8_t RFIDRead = 0;
uint8_t dht22 = 0;
uint8_t sensor1_Flag = 0;
uint8_t initial_Flag = 0;
uint8_t FunctionFlag = 0;
uint8_t DS18B20Flag = 0;
} vFlag;
vFlag *flag_Ptr;
vFlag flag;
//--------- uart structure --------------------------------------
//----------uart--------------
#define LINE_BUFFER_LENGTH 64
typedef struct _vUart
{
char c;
int lineIndex = 0;
int line1Index = 0;
int BTlineIndex = 0;
bool lineIsComment;
bool lineSemiColon;
char line[128];
char BTline[20];
String inputString;
String BTinputString;
String S1inputString;
int V[16];
char ctemp[30];
char I2C_Data[80];
int DC_Spped = 50;
float Voltage[16];
int Buffer[128];
int StartCnt = 0;
int ReadCnt = 0;
int sensorValue = 0;
} vUart;
vUart *Uart_Ptr;
vUart Uart;
//---------------------------------------------------------------------------------
#ifndef LED_BUILTIN
#define LED_BUILTIN 2
#endif
//----------------------------------------------------------------
TaskHandle_t hled;
TaskHandle_t huart;
//------------------------------------------------------------------------------
void initial()
{
Serial.println(F("Create Task"));
//----------------------------------------------------------------------
xTaskCreatePinnedToCore(
vUARTTask, "UARTTask" // A name just for humans
,
1024 // This stack size can be checked & adjusted by reading the Stack Highwater
,
NULL, 3 // Priority, with 3 (configMAX_PRIORITIES - 1) being the highest, and 0 being the lowest.
,
&huart //handle
,
0);
//--------------- create task----------------------------------
xTaskCreatePinnedToCore(
vLEDTask, "LEDTask" // A name just for humans
,
1024 // This stack size can be checked & adjusted by reading the Stack Highwater
,
NULL, 2 // Priority, with 3 (configMAX_PRIORITIES - 1) being the highest, and 0 being the lowest.
,
&hled //handle
,
0);
//----------------------------------------
//----------------------------------------------------------------------
//vTaskSuspend(hfunction); //暫停TASK運行
//----------------------------------------------------------------------
}
void setup()
{
Serial.begin(9600);
Serial.println(F("init"));
initial();
pinMode(LED_BUILTIN, OUTPUT);
pinMode(16, OUTPUT);
//-------------------------
//----------------------------
Serial.println(ssid);
//WiFi.mode(WIFI_STA);
//WiFi.begin(ssid, password);
//WiFi.begin("Wokwi-GUEST", "", 6);
WifiConnect();
//-----------------------------------------
//MQTTClient.setServer(MQTTServer, MQTTPort);
//MQTTClient.setCallback(MQTTCallback);
//------------------------------------------
//---------------------------------------------
if (oneWire.search(address))
{
Serial.println("Slave device found!");
Serial.print("Device Address = ");
Serial.println(address[0]);
}
else
{
Serial.println("Slave device not found!");
}
//-----DS18B20-----------
sensors.begin();
//dht.begin();
}
void loop()
{
Serial.print(F("Main at core:"));
Serial.println(xPortGetCoreID());
while(1)
{
if (WiFi.status() != WL_CONNECTED)
{
WifiConnect();
}
if (!MQTTClient.connected())
{
MQTTConnect();
}
//如果距離上次傳輸已經超過10秒，則Publish溫度
if ((millis() - MQTTLastPublishTime) >= MQTTPublishInterval )
{
//---ds18b20-----
sensors.requestTemperatures();
Temperature=sensors.getTempCByIndex(0);
Serial.println(sensors.getTempCByIndex(0));
MQTTClient.publish(MQTTPubTopic1, String(Temperature).c_str());
Serial.println("Temperature Publish to MQTT Broker");
//---------------------------
AQIBuffer = httpGETRequest1(url.c_str());
Serial.print("新竹 pm2.5_avg: ");
Serial.println(AQIBuffer);
MQTTClient.publish(MQTTPubTopic2, String(AQIBuffer).c_str());
Serial.println("pm2.5_avg Publish to MQTT Broker");
MQTTLastPublishTime = millis();
}
MQTTClient.loop();//update status
delay(50);
//----------------------------
if(flag.DS18B20Flag == 1)
{
vDS18B20Task();
}
if(flag.DS18B20Flag == 2)
{
vNodeRedTask();
AQIBuffer = httpGETRequest1(url.c_str());
Serial.print("新竹 pm2.5_avg: ");
Serial.println(AQIBuffer);
flag.DS18B20Flag =0;
}
}
}
//-------------------------------------------
void vUARTTask(void *pvParameters)
{
(void)pvParameters;
Serial.print(F("UARTTask at core:"));
Serial.println(xPortGetCoreID());
vTaskDelay(100);
for (;;)
{
while (Serial.available() > 0)
{
Uart.c = Serial.read();
if ((Uart.c == '\n') || (Uart.c == '\r'))
{ // End of line reached
if (Uart.lineIndex > 0)
{ // Line is complete. Then execute!
Uart.line[Uart.lineIndex] = '\0'; // Terminate string
//Serial.println( F("Debug") );
//Serial.println( Uart.inputString );
processCommand(Uart.line); // do something with the command
Uart.lineIndex = 0;
Uart.inputString = "";
}
else
{
// Empty or comment line. Skip block.
}
Uart.lineIsComment = false;
Uart.lineSemiColon = false;
Serial.println(F("ok>"));
}
else
{
//Serial.println( c );
if ((Uart.lineIsComment) || (Uart.lineSemiColon))
{
if (Uart.c == ')')
Uart.lineIsComment = false; // End of comment. Resume line.
}
else
{
if (Uart.c == '/')
{ // Block delete not supported. Ignore character.
}
else if (Uart.c == '~')
{ // Enable comments flag and ignore all characters until ')' or EOL.
Uart.lineIsComment = true;
}
else if (Uart.c == ';')
{
Uart.lineSemiColon = true;
}
else if (Uart.lineIndex >= LINE_BUFFER_LENGTH - 1)
{
Serial.println("ERROR - lineBuffer overflow");
Uart.lineIsComment = false;
Uart.lineSemiColon = false;
}
else if (Uart.c >= 'a' && Uart.c <= 'z')
{ // Upcase lowercase
Uart.line[Uart.lineIndex] = Uart.c - 'a' + 'A';
Uart.lineIndex = Uart.lineIndex + 1;
Uart.inputString += (char)(Uart.c - 'a' + 'A');
}
else
{
Uart.line[Uart.lineIndex] = Uart.c;
Uart.lineIndex = Uart.lineIndex + 1;
Uart.inputString += Uart.c;
}
}
}
} //while (Serial.available() > 0)
vTaskDelay(5);
}
}
//-------------------------------------------------------------------------
static void vLEDTask(void *pvParameters)
{
(void)pvParameters;
Serial.println(F("LEDTask at core:"));
Serial.println(xPortGetCoreID());
pinMode(LED_BUILTIN, OUTPUT);
for (;;) // A Task shall never return or exit.
{
digitalWrite(LED_BUILTIN, HIGH); // turn the LED on (HIGH is the voltage level)
vTaskDelay(200);
digitalWrite(LED_BUILTIN, LOW); // turn the LED off by making the voltage LOW
vTaskDelay(200);
}
}
//----------------------------------------
void processCommand(char *data)
{
int len, xlen, ylen, zlen, alen;
int tempDIO;
String stemp;
len = Uart.inputString.length();
//---------------------------------------
if (strstr(data, "VER") != NULL)
{
Serial.println(F("ESP32_20230811"));
}
if (strstr(data, "DS18B20_ON") != NULL)
{
flag.DS18B20Flag = 1;
Serial.println(F("DS18B20_ON"));
}
if (strstr(data, "NODE_RED") != NULL)
{
flag.DS18B20Flag = 2;
Serial.println(F("NODE_RED"));
}
if (strstr(data, "DS18B20_OFF") != NULL)
{
flag.DS18B20Flag = 0;
Serial.println(F("DS18B20_OFF"));
}
}
//--------------------------------------------
void callback(char* topic, byte* payload, unsigned int length)
{
Serial.print("Message arrived [");
Serial.print(topic);
Serial.print("] ");
for (int i = 0; i < length; i++)
{
Serial.print((char)payload[i]);
}
Serial.println();
// Switch on the LED if an 1 was received as first character
if ((char)payload[0] == '1')
{
digitalWrite(LED_BUILTIN, LOW); // Turn the LED on (Note that LOW is the voltage level
}
else
{
digitalWrite(LED_BUILTIN, HIGH); // Turn the LED off by making the voltage HIGH
}
}
//-----------------------------------------
//開始WiFi連線
void WifiConnect()
{
//開始WiFi連線
//WiFi.begin("Wokwi-GUEST", "", 6);
WiFi.begin(ssid, password);
while (WiFi.status() != WL_CONNECTED)
{
delay(500);
Serial.print(".");
}
Serial.println("WiFi連線成功");
Serial.print("IP Address:");
Serial.println(WiFi.localIP());
}
//----------------------------------------
void MQTTConnect()
{
MQTTClient.setServer(MQTTServer, MQTTPort);
MQTTClient.setCallback(MQTTCallback);
while (!MQTTClient.connected())
{
//以亂數為ClietID
String MQTTClientid = "esp32-" + String(random(1000000, 9999999));
if (MQTTClient.connect(MQTTClientid.c_str(), MQTTUser, MQTTPassword))
{
//連結成功，顯示「已連線」。
Serial.println("MQTT已連線");
//訂閱SubTopic1主題
MQTTClient.subscribe(MQTTSubTopic1);
}
else
{
//若連線不成功，則顯示錯誤訊息，並重新連線
Serial.print("MQTT連線失敗,狀態碼=");
Serial.println(MQTTClient.state());
Serial.println("五秒後重新連線");
delay(5000);
}
}
}
//------------------------------------------
//接收到訂閱時
void MQTTCallback(char* topic, byte* payload, unsigned int length)
{
Serial.print(topic); Serial.print("訂閱通知:");
String payloadString;//將接收的payload轉成字串
//顯示訂閱內容
for (int i = 0; i < length; i++)
{
payloadString = payloadString + (char)payload[i];
}
Serial.println(payloadString);
//比對主題是否為訂閱主題1
if (strcmp(topic, MQTTSubTopic1) == 0)
{
Serial.println("改變燈號：" + payloadString);
if (payloadString == "ON")
{
digitalWrite(16, HIGH);
}
if (payloadString == "OFF")
{
digitalWrite(16, LOW);
}
}
}
//-------------------------------------------
void vNodeRedTask()
{
//Serial.print("Temperatures --> ");
sensors.requestTemperatures();
Serial.println(sensors.getTempCByIndex(0));
}
//-------------------------------------------
void vDS18B20Task()
{
Serial.print("Temperatures --> ");
sensors.requestTemperatures();
Serial.println(sensors.getTempCByIndex(0));
}
String httpGETRequest1(const char* serverName)
{
HTTPClient http;
//String AQI;
// Your IP address with path or Domain name with URL path
http.begin(serverName);
// Send HTTP POST request
int httpResponseCode = http.GET();
String payload = "{}";
//if (httpResponseCode > 0) {
if (httpResponseCode == HTTP_CODE_OK) { // 如果取得資料成功
//Serial.print("HTTP Response code: ");
//Serial.println(httpResponseCode);
payload = http.getString();
//JSON格式解析
//payload = "[" + payload + "]"; //將資料轉為JSON 陣列格式
DynamicJsonDocument AQJarray(payload.length() * 2);
deserializeJson(AQJarray, payload);//解析payload為JSON Array格式
String AQI = AQJarray["records"][0]["pm2.5_avg"];
//AQI = AQJarray["records"][0]["aqi"];
AQIBuffer = AQI;
//Serial.println(Area + " AQI:" + AQI);
//-------------------------
}
else {
Serial.print("Error code: ");
Serial.println(httpResponseCode);
}
// Free resources
http.end();
//return payload;
return AQIBuffer;
}
//-----------------------------------
