About

This example ESP32 will be used to connect to WiFi, read data from DHT11 and send the data to MQTT Broker.
What is covered:

• Integration between Arduino and Stateflow;
• Use of build-in Arduino Libraries in Simulink.

Requeriments

Software

• MATLAB Version 9.13 (R022b)
• Simulink R2022b 10.6 (R022b)
• MATLAB Support Package for Arduino Hardware (version 22.2.2)
• Simulink Support Package for Arduino Hardware (version 22.2.4)
  Maybe work with newer versions.

Hardware

• x1 - ESP32
• x1 - DHT11

Connections

Files:

• main.slx: Model with the main model/logic of the example.

Blocks

• DHT11_Handler: This block reads DHT11 sensor and send false if any error is found.
• WiFi_Handler: This block connect to wifi and send true when wifi is connected.
• Serial_CommunicationHandler: This block start and send signal true when serial communication is ok.
• MQTTHandler: Handle MQTT messages (send and recieve).

How to use

• Check How to Use Section and make all initial config.
• Open main.slx.
• Change ssid and password to connect to WiFi.
• Check MQTTHandler block to config your MQTT.
• Hardware > Build, Deploy & Start.