WiFi

Arduino Wi-Fi^® blocks

Create and configure Simulink^® models with the Wi-Fi peripheral blocks. Use the configuration parameters that are specific to each communication protocol.

Blocks

WiFi TCP/IP Receive	Receive data over TCP/IP network from remote host on wireless network
WiFi TCP/IP Send	Send data over TCP/IP network to remote host over wireless network
WiFi UDP Receive	Receive data from UDP host on wireless network
WiFi UDP Send	Send data to UDP host on wireless network
WiFi ThingSpeak Read	Read data stored in a ThingSpeak channel
WiFi ThingSpeak Write	Publish data to the Internet of Things using WiFi ThingSpeak
WebSocket Subscribe	Subscribe to the JSON data received by a WebSocket server (Since R2020b)
WebSocket Publish	Publish data to WebSocket server in JSON format (Since R2020b)
WiFi MQTT Publish	Publish messages to message queuing telemetry transport (MQTT) broker (Since R2022b)
WiFi MQTT Subscribe	Receive messages from message queuing telemetry transport (MQTT) broker (Since R2022b)
WiFi HTTP Client	Send and receive data from HTTP server over URL connection (Since R2023a)

Topics

ESP8266

Connect ESP8266 to Arduino Hardware
Connect ESP8266 to Arduino^® hardware.

WiFi Shield

Connect Arduino WiFi Shield to Arduino Hardware
Connect Arduino WiFi shield to Arduino hardware.

MKR1000

Connect Arduino MKR1000, Arduino MKR WIFI 1010, or Arduino MKR ZERO Hardware to Computer
Connect Arduino MKR1000, Arduino MKR WIFI 1010, or Arduino MKR ZERO hardware to a computer.

Connected IO

Setting Up a Wi-Fi TCP/IP Connection with Connected IO in Simulink
Establish Wi-Fi TCP/IP connection with Connected IO.
Setting Up a Wi-Fi UDP Connection with Connected IO in Simulink
Establish Wi-Fi UDP connection with Connected IO.

Configuration Parameter Settings

Configure Network Settings for Wi-Fi
Configure network settings for Wi-Fi.
Configure Model to Run in External Mode over Wi-Fi or Serial
Configure model to run in external mode over Wi-Fi or serial.

Troubleshooting

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.

Featured Examples

Get Started with Wi-Fi on Arduino Hardware

Use Simulink® Support Package for Arduino® hardware to receive and send TCP/IP or UDP messages over Wi-Fi® using Arduino boards.

Open Model

Control Brightness of Arduino Onboard LED from Android Device

Use the Simulink® Support Package for Arduino® Hardware to control brightness of a LED on an Arduino board using an Android® device.

Open Model

Arduino Based Smart Watering of Plants

Use Simulink® Support Package for Arduino® Hardware to create a Simulink model to implement a smart plant watering system based on ThingSpeak™.

Open Model

Publish Data from Arduino Blocks and Read Data on Web Browser Using WebSocket Protocols

Use the Simulink® Support Package for Arduino® Hardware to publish and subscribe data from various Arduino blocks to a WebSocket server and to read data on a web browser in a WebSocket client.

Open Model

Read and Write to ThingSpeak Channel Using Arduino WiFi HTTP Client Block

Use the WiFi HTTP Client block from the Simulink® Support Package for Arduino® Hardware to read and write data to a field in a ThingSpeak™ channel.

Open Model

Warn Dry Soil Moisture with Notification from IFTTT Using Arduino Based Smart Watering System

Use the WiFi HTTP Client block from the Simulink® Support Package for Arduino® Hardware to trigger a request to IFTTT once the moisture in the soil drops below a set threshold value and send a notification to an Android device.

Open Model