TinkerNode NB-IoT使用WIFI订阅、发布Easy Iot主题
为了让你的开发板能够在 Arduino IDE中跑起来，首先请参考下文：https://mc.dfrobot.com.cn/thread-303693-1-1.html
配置：
演示：
代码：
/*!
* @file Publish_Topic.ino
*
* @brief After the program download is complete.
* @brief You can use the BC20 module to connect to DFRobot Easy IOT cloud platform,
* @brief and publish data to your Topic
*
* @N Easy-IoT - the simplest solution of IoT cloud platform
* @n Website(CN):https://iot.dfrobot.com.cn
* @n Website(EN):http://iot.dfrobot.com
*
* @copyright Copyright (c) 2010 DFRobot Co.Ltd (http://www.dfrobot.com)
* @licence The MIT License (MIT)
* @author (xiao.wu@dfrobot.com)
* @versionV1.0
* @date2019-10-29
* @get from https://www.dfrobot.com
*/
#include <WiFi.h>
#include "DFRobot_Iot.h"
#include <PubSubClient.h>
const char* WIFI_SSID = "******";
const char* WIFI_PASSWORD = "******";
/*Configure device certificate information*/
String Iot_id = "******";
String Client_ID= "******";//自定义
String Iot_pwd = "******";
/*Configure the domain name and port number*/
String EasyIot_SERVER = "182.254.130.180";
uint16_t PORT = 1883;
/*Set the Topic you need to publish to*/
const char * pubTopic = "******";
const char * subTopic = "******";
DFRobot_Iot myIot;
WiFiClient espClient;
PubSubClient client(espClient);
void connectWiFi(){
Serial.print("Connecting to ");
Serial.println(WIFI_SSID);
WiFi.begin(WIFI_SSID,WIFI_PASSWORD);
while(WiFi.status() != WL_CONNECTED){
delay(500);
Serial.print(".");
}
Serial.println();
Serial.println("WiFi connected");
Serial.print("IP Adderss: ");
Serial.println(WiFi.localIP());
}
void callback(char * topic, byte * payload, unsigned int len){
Serial.print("Recevice [");
Serial.print(topic);
Serial.print("] ");
for (int i = 0; i < len; i++){
Serial.print((char)payload);
}
Serial.println();
}
void ConnectCloud(){
while(!client.connected()){
Serial.print("Attempting MQTT connection...");
/*A device connected to the cloud platform based on an automatically calculated username and password*/
if(client.connect(myIot._clientId, myIot._username, myIot._password)){
Serial.println("connected");
client.subscribe(subTopic);
}else{
Serial.print("failed, rc=");
Serial.print(client.state());
Serial.println(" try again in 5 seconds");
delay(5000);
}
}
}
void setup(){
Serial.begin(115200);
delay(10);
connectWiFi();
/*Initialize the configuration of OneNet*/
myIot.init(EasyIot_SERVER, Iot_id, Client_ID, Iot_pwd);
client.setServer(myIot._mqttServer,PORT);
/*Set the callback function to execute the callback function when receiving the subscription information*/
client.setCallback(callback);
/*Connect to the cloud platform*/
ConnectCloud();
}
void loop(){
if(!client.connected()){
ConnectCloud();
}
client.loop();
}
发布数据：
/*!
* @file Publish_Topic.ino
*
* @brief After the program download is complete.
* @brief You can use the BC20 module to connect to DFRobot Easy IOT cloud platform,
* @brief and publish data to your Topic
*
* @n Easy-IoT - the simplest solution of IoT cloud platform
* @n Website(CN):https://iot.dfrobot.com.cn
* @n Website(EN):http://iot.dfrobot.com
*
* @copyright Copyright (c) 2010 DFRobot Co.Ltd (http://www.dfrobot.com)
* @licence The MIT License (MIT)
* @author (xiao.wu@dfrobot.com)
* @versionV1.0
* @date2019-10-29
* @get from https://www.dfrobot.com
*/
#include "WiFi.h"
#include "DFRobot_Iot.h"
#include <PubSubClient.h>
const char* WIFI_SSID = "sxs";
const char* WIFI_PASSWORD = "**************";
/*Configure device certificate information*/
String Iot_id = "RNZYsQIWg";
String Client_ID= "sxs12345678";
String Iot_pwd = "gHWLswIWgz";
/*Configure the domain name and port number*/
String EasyIot_SERVER = "182.254.130.180";
uint16_t PORT = 1883;
/*Set the Topic you need to publish to*/
const char * pubTopic = "12IZ3JpWR";
const char * subTopic = "E1RcL1tZg";
DFRobot_Iot myIot;
WiFiClient espClient;
PubSubClient client(espClient);
void connectWiFi(){
Serial.print("Connecting to ");
Serial.println(WIFI_SSID);
WiFi.begin(WIFI_SSID,WIFI_PASSWORD);
while(WiFi.status() != WL_CONNECTED){
delay(500);
Serial.print(".");
}
Serial.println();
Serial.println("WiFi connected");
Serial.print("IP Adderss: ");
Serial.println(WiFi.localIP());
}
void callback(char * topic, byte * payload, unsigned int len){
Serial.print("Recevice [");
Serial.print(topic);
Serial.print("] ");
for (int i = 0; i < len; i++){
Serial.print((char)payload);
}
Serial.println();
}
void ConnectCloud(){
while(!client.connected()){
Serial.print("Attempting MQTT connection...");
/*A device connected to the cloud platform based on an automatically calculated username and password*/
if(client.connect(myIot._clientId, myIot._username, myIot._password)){
Serial.println("connected");
client.subscribe(subTopic);
}else{
Serial.print("failed, rc=");
Serial.print(client.state());
Serial.println(" try again in 5 seconds");
delay(5000);
}
}
}
void setup(){
Serial.begin(115200);
delay(10);
connectWiFi();
/*Initialize the configuration of OneNet*/
myIot.init(EasyIot_SERVER, Iot_id, Client_ID, Iot_pwd);
client.setServer(myIot._mqttServer,PORT);
/*Set the callback function to execute the callback function when receiving the subscription information*/
client.setCallback(callback);
/*Connect to the cloud platform*/
ConnectCloud();
}
void loop(){
if(!client.connected()){
ConnectCloud();
}
client.loop();
client.publish(pubTopic,"data");
delay(5000);
}
页:
[1]