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...
3、MQTT版本 MQTT-SN v1.2 MQTT 3.1 MQTT 3.1.1 MQTT 5 其中MQTT3.1和MQTT3.1.1是目前最常用的版本。 4、MQTT Servers Ably MQTT Broker Apache ActiveMQ :开源 Mosquitto:开源,对应的测试服务器(https://test.mosquitto.org/) RabbitMQ:开源 EMQ :开源,国内一家公司开发的 5、MQTT Client 嵌入式C 客户端...
setServer(mqtt_broker, mqtt_port); mqtt_client.setKeepAlive(60); mqtt_client.setCallback(mqttCallback); // Corrected callback function name connectToMQTT(); } void connectToWiFi() { WiFi.begin(ssid, password); Serial.print("Connecting to WiFi"); while (WiFi.status() != WL_CONNECTED)...
connect() client.subscribe(topic_sub) print('Connected to %s MQTT broker, subscribed to %s topic' % (mqtt_server, topic_sub)) return client 定义一个重启和重新连接的函数 def restart_and_reconnect(): print('Failed to connect to MQTT broker. Reconnecting...') time.sleep(10) machine.reset(...
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...
ESP32和PubSubClient库连接到MQTT代理的简单示例: #include<WiFi.h>#include<PubSubClient.h>constchar*ssid="YourWiFiNetworkName";constchar*password="YourWiFiNetworkPassword";constchar*mqttServer="MQTTBrokerIP";constintmqttPort=1883;constchar*mqttUser="YourMQTTUsername";constchar*mqttPassword="YourMQTTPa...
PC上创建一个CLIENT, Client里面传入本地IP与MQTT Broker服务的端口号, 与PC上面的Server建立一个长连接 PC上的Client, 发送数据帧 Topic ID + 指令, Topic ID为LED Control 数据帧: TOPIC_ID:LED_CONTROL, MESSAGE:LED_ON 数据发送给Server, Server发现ESP32开发板订阅了LED_CONTROL这个主题, 然后就通过ESP32...
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\n"...
使用PubSubClient 连接到公共 MQTT Broker。 c 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 brok...