ArduinoIDE 開發esp8266連接mqtt阿里云+sntp

ID:438023 · 發表于 2020-4-5 14:29

Arduino環境編譯esp8266 mqtt連接阿里云，實現設備運云端雙向通信，并同時獲取sntp網絡時間

Arduino源程序如下:

//13=D7 16=D0 15=D8 14=D5 12=D6 4=D2 3=D9 2=D4=GPIO2 1=D10 0=D3=GPIO0
#include <ESP8266WiFi.h>//安裝esp8266arduino開發環境
#include <AliyunIoTSDK.h>//引入阿里云 IoT SDK
#include <NTPClient.h>
#include <WiFiUdp.h>
#define PRODUCT_KEY "***********"//替換自己的PRODUCT_KEY
#define DEVICE_NAME "***********"//替換自己的DEVICE_NAME
#define DEVICE_SECRET "***********"//替換自己的DEVICE_SECRET
#define REGION_ID "cn-shanghai"//默認cn-shanghai
#define WIFI_SSID "***********"//替換自己的WIFI
#define WIFI_PASSWD "***********"//替換自己的WIFI
#define ledPin 0
static WiFiClient espClient;
WiFiUDP ntpUDP;
NTPClient timeClient(ntpUDP,"ntp1.aliyun.com",0,0);//30*60*1000
unsigned long lastMsMain = 0;
String rxbuff="";
void setup()
{
Serial.begin(9600);
pinMode(ledPin, OUTPUT);
digitalWrite(ledPin, HIGH);
//連接到wifi
wifiInit(WIFI_SSID, WIFI_PASSWD);
timeClient.begin();//SNTP begin
//初始化 iot，需傳入 wifi 的 client，和設備產品信息
AliyunIoTSDK::begin(espClient, PRODUCT_KEY, DEVICE_NAME, DEVICE_SECRET, REGION_ID);
//綁定一個設備屬性回調，當遠程修改此屬性，會觸發LED函數
AliyunIoTSDK::bindData("PowerSwitch", Relay_Control);//電器開關
AliyunIoTSDK::bindData("VehACSwitch", Air_Control);//空調開關
AliyunIoTSDK::bindData("LightLuminance",PWM_Control);//主燈亮度PWM
}
void loop()
{
int t=36;
AliyunIoTSDK::loop();//必要函數
//時刻讀取硬件串口數據
while (Serial.available())
{
rxbuff += char(Serial.read());
}
while (Serial.read() >= 0) {} //清除串口緩存
if (rxbuff.length() > 0)
{
Serial.println(rxbuff[2]);
rxbuff="";
}
if (millis() - lastMsMain >= 2000)//每2秒發送一次
{
lastMsMain = millis();
//發送溫度到云平臺
AliyunIoTSDK::send("IndoorTemperature", t);//溫度上傳
timeClient.update();
//Serial.println(timeClient.getFormattedTime());
//Serial.println(timeClient.getEpochTime());
}
}
//wifi 連接
void wifiInit(const char *ssid, const char *passphrase)
{
WiFi.mode(WIFI_STA);
WiFi.begin(ssid, passphrase);
while (WiFi.status() != WL_CONNECTED)
{
delay(1000);
Serial.println("WiFi not Connect");
}
Serial.println("Connected to AP");
}
//繼電器開關的屬性修改的回調函數
void Relay_Control(JsonVariant L)//固定格式，修改參數l
{
int Relay = L["PowerSwitch"];//參數l “”為aliyun 的標志符
AliyunIoTSDK::send("PowerSwitch", Relay);
if (Relay == 1)
{
Serial.println("Relay On_____________");
digitalWrite(ledPin,HIGH);
}
else
{
Serial.println("Relay Off____________");
digitalWrite(ledPin,LOW);
}
}
//空調開關的屬性修改的回調函數
void Air_Control(JsonVariant L)
{
int Air = L["VehACSwitch"];//參數l “”為aliyun 的標志符
AliyunIoTSDK::send("VehACSwitch", Air);
if (Air == 1)
Serial.println("Air PowerOn___________");
else
Serial.println("Air PowerOff__________");
}
//PWM變頻的屬性修改的回調函數
void PWM_Control(JsonVariant L)
{
int PWM = L["LightLuminance"];//參數l “”為aliyun 的標志符
AliyunIoTSDK::send("LightLuminance", PWM);
Serial.println("PWM value：");
Serial.println(PWM);
}