主要内容

Wi-Fi

使用 Wi-Fi 通信

Wi-Fi® 允许设备以无线方式连接到局域网。基于 IEEE® 802.11 标准,Wi-Fi 通常用于提供 Internet 访问并支持设备间无需物理电缆的通信。

使用 Wi-Fi 扩展板作为 Arduino® 板的附加功能以扩展其 Wi-Fi 功能。这些扩展板使板能够连接到无线网络,从而允许它们通过 Internet 或本地网络发送和接收数据。

模块

WiFi TCP/IP ReceiveReceive data over TCP/IP network from remote host on wireless network
WiFi TCP/IP SendSend data over TCP/IP network to remote host over wireless network
WiFi UDP ReceiveReceive data from UDP host on wireless network
WiFi UDP SendSend data to UDP host on wireless network
WiFi ThingSpeak ReadRead data stored in a ThingSpeak channel on wireless network
WiFi ThingSpeak WritePublish data to Internet of Things using ThingSpeak on wireless network
WebSocket SubscribeSubscribe to the JSON data received by a WebSocket server
WebSocket PublishPublish data to WebSocket server in JSON format
WiFi MQTT PublishPublish messages to message queuing telemetry transport (MQTT) broker (自 R2022b 起)
WiFi MQTT SubscribeReceive messages from message queuing telemetry transport (MQTT) broker (自 R2022b 起)
WiFi HTTP ClientSend and receive data from HTTP server over URL connection (自 R2023a 起)

主题

疑难解答

Unable to Deploy Code on an Arduino Board Connected to an ESP8266

No separate serial port is available on Arduino Uno board to deploy code.

Unable to Connect ESP8266 to Wi-Fi Network

Connection between ESP8266 and Wi-Fi network failed.

Unable to Assign IP Address to an Arduino Board Connected to ESP8266

Failed to assign IP address to Arduino board connected to ESP8266.

Unable to Assign IP Address to an Arduino MKR1000 Board

Failed to assign IP address to Arduino MKR WIFI 1010 board.

Unable to Assign IP Address to an Arduino MKR WIFI 1010 Board

Failed to assign IP address to Arduino MKR WIFI 1010 board.

Unable to Assign IP Address to an Arduino Board Connected to WiFi Shield

Failed to assign IP address to Arduino board connected to WiFi shield.

Expected Data Not Received on WiFi TCP or UDP Receive Block

Data received on the WiFi TCP Receive block or WiFi UDP Receive block is incorrect.

WiFi TCP/IP Send or Receive Server Block Is Unable to Communicate to TCP/IP Client

In server mode, the WiFi TCP/IP block is unable to communicate with TCP/IP client.

WiFi TCP/IP Send or Receive Client Block Is Unable to Communicate to TCP/IP Server

In client mode, the WiFi TCP/IP block is unable to communicate with TCP/IP server.

WiFi ThingSpeak Write Block Unable to Upload Data to a ThingSpeak Channel

Data is not uploaded on ThingSpeak™ channel.

精选示例