图中的MQTTX-Setup-1.10.1-x64.exe暂时不用管它。这个后面会讲到的。 在这里插入图片描述 解压压缩包,然后打开解压的目录,找到对应的bin目录。如下图所示。 在这里插入图片描述 选中对应的bin目录,然后输入cmd,回车。打开命令窗口。 在这里插入图片描述 打开命令窗口后,在命令窗口中输入 emqx start 回车 在这里...
AI代码解释 #include"DHT.h"#include<ESP8266WiFi.h>#include<PubSubClient.h>/*** WIFI and MQTT Information (CHANGE THESE FOR YOUR SETUP) ***/constchar*ssid="PDCN";//type your WIFI information inside the quotesconstchar*password="1234567890";constchar*mqtt_server="192.168.123.173";constchar*...
WiFiClient espClient; PubSubClientclient(espClient);voidsetup(){// Set software serial baud to 115200;Serial.begin(115200);// Connecting to a WiFi networkWiFi.begin(ssid, password);while(WiFi.status() != WL_CONNECTED) { delay(500); Serial.println("Connecting to WiFi.."); } Serial.print...
m=mqtt.Client("clientid",120)--init mqtt client with logins,keepalive timer120sec m=mqtt.Client("clientid",120,"user","password")--setup Last WillandTestament(optional)--Broker will publish a message with qos=0,retain=0,data="offline"--to topic"/lwt"ifclient don't send keepalive pa...
{returncelsius+273.15;//摄氏温度转化为开氏温度}voidsetup(){Serial.begin(9600);//设置ESP8266工作模式WiFi.mode(WIFI_STA);// 连接WiFiWifi();// 设置MQTT服务器和端口号mqttClient.setServer(mqttServer,1883);// 连接MQTT服务器connectMQTTServer();mqttClient.setCallback(callback);// 设置回调}void...
void setup(){ pinMode(relayInput,OUTPUT); //初始化引脚,是一个库 pinMode(led,OUTPUT); //设置了引脚的输出模式 } void loop(){ digitalWrite(relayInput,LOW); //不断重复运行 } 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 若灯亮起,则说明灯没有问题,则继续下一步骤。
uart.setup(uart_id, 9600) uart.on(uart_id, "receive", function(id, len) local data = "" while 1 do local tmp = uart.read(uart_id) if not tmp or #tmp == 0 then break end data = data .. tmp end log.info("uart", "uart收到数据长度", #data) ...
EMQ(杭州映云科技有限公司)是一家开源物联网数据基础设施软件供应商,交付全球领先的开源 MQTT 消息服务器和流处理数据库,提供基于云原生+边缘计算技术的一站式解决方案,实现企业云边端实时数据连接、移动、... « 上一篇 EMQ X 与 HStreamDB 集成实践:通过规则引擎实现数据存储 ...
()); // Setup connection System.out.println("Connecting to broker: " + broker); client.connect(connOpts); System.out.println("Connected"); System.out.println("Publishing message: " + content); // Publish client.subscribe(subTopic); // Required parameters for publishing message MqttMessage ...
For those supporting multiple TLS protocols on a single port, like MQTTS and MQTT over WSS, utilize theALPNProtocolsoption. This lets you define the Application Layer Protocol Negotiation (ALPN) protocol. You can setALPNProtocolsas a string array, Buffer, or Uint8Array based on your setup. ...