配置以下参数:Wi-Fi 网络名称和密码、MQTT Broker 地址和端口、以及emqx/esp32主题。 // WiFiconstchar*ssid ="xxxxx";// Enter your WiFi nameconstchar*password ="xxxxx";// Enter WiFi password// MQTT Brokerconstchar*mqtt_broker ="broker.emqx.io";constchar*topic ="emqx/esp32";constchar*mqtt_u...
* @param server mqtt服务器地址 * @param port mqtt服务器端口 * @param user mqtt服务器账号 * @param pass mqtt服务器密码 */Adafruit_MQTT_Client(Client *client,constchar*server,uint16_tport,constchar*user="",constchar*pass=""): Adafruit_MQTT(server, port, user, pass), client(client) —...
// 通过传入WiFi客户端和MQTT服务端以及登录详细信息来设置MQTT客户端类,注意连入爱智必须设置 cid,可能和爱智那边设置有关系。 Adafruit_MQTT_Client mqtt(&client, AIO_SERVER, AIO_SERVERPORT, "Publish_cid", AIO_USERNAME, AIO_KEY); 需要注意的是虽然 Adafruit_MQTT_Client 有可以不带 cid 的实现 /*** ...
// WiFiconstchar*ssid ="mousse";// Enter your WiFi nameconstchar*password ="qweqweqwe";// Enter WiFi password// MQTT Brokerconstchar*mqtt_broker ="broker.emqx.io";constchar*topic ="esp32/test";constchar*mqtt_username ="emqx";constchar*mqtt_password ="public";constintmqtt_port =1883;...
使用PubSubClient 连接到公共 MQTT Broker。 client.setServer(mqtt_broker, mqtt_port); client.setCallback(callback); while (!client.connected()) { String client_id = "esp32-client-"; client_id += String(WiFi.macAddress()); Serial.printf("The client %s connects to the public mqtt broker...
const char* mqttServer = "iot-06z00axdhgfk24n.mqtt.iothub.aliyuncs.com"; // 如以上MQTT服务器无法正常连接,请前往以下页面寻找解决方案 // http://www.taichi-maker.com/public-mqtt-broker/ WiFiClient wifiClient; PubSubClient mqttClient(wifiClient); ...
通过上述示例可以看到,借助于发布订阅模型,发布者和订阅者之间不需要知道对方的IP地址和端口号(它们只需要知道MQTT Broker的IP地址和端口号),由中介MQTT Broker负责协调;发布者和订阅者双方可以是异步通讯的,并不要求发布者发布信息的同时订阅者必须同步接受信息; 整个系统的扩展性得到极大的提高,可以应对更多数量级的设...
1, 首先,需要加载AsyncMQTT_ESP32的库 #include 2,配置MQTT的服务器信息,可以是IP或者域名的方式 //#define MQTT_HOST IPAddress(192, 168, 100, 100) #define MQTT_HOST "broker.emqx.io" // Broker address #define MQTT_PORT 1883 3,设置主题,发布需要主题,订阅也需要主题 ...
// MQTT Broker const charmqtt_broker = "http://broker.emqx.io"; const chartopic = "esp32/test"; const charmqtt_username = "emqx"; const charmqtt_password = "public"; const int mqtt_port = 1883; ``` 打开一个串行连接,以便于输出程序的结果并且连接到 Wi-Fi 网络 ...
This article will use thefree public MQTT brokerto simplify the process: Server:broker.emqx.io TCP Port:1883 WebSocket Port:8083 SSL/TLS Port:8883 Secure WebSocket Port:8084 Getting Started with MQTT on ESP32 Arduino Configuration Arduino is an open-source electronics platform based on easy-to-...