Mqtt Client

Table of Contents

Example Summary

This example introduce the user to the MQTT Client Library.

Example Usage

• Connect to AP (Client Side)
  • AP information is set in network_if.h file.
  • In case hard coded AP SSID connection is failed, the user will be requested to fill the SSID of an open AP to connect to.
  • If no AP is available or connection failed, the example reset and try to connect again.
• After connection
  • The application have one MQTT entity
    • MQTT Client - Can connect to remote broker (remote broker address is configurted in mqtt_server.c (SERVER_ADDRESS)
• Client Topics
  • The Client is subscribe to topics “/Broker/To/cc32xx”
    “/cc3200/ToggleLEDCmdL1”
    “/cc3200/ToggleLEDCmdL2”
    “/cc3200/ToggleLEDCmdL3”
    
  • The Client publish the following topic “/cc32xx/ButtonPressEvtSw2” - the topic will be published by pressing SW2 on the board

• Secured socket In order to activate the secured example, SECURE_CLIENET should be enabled ( certificates should be programmed )

• Special handling
  • In case the internal client will disconnect (for any reason) from the remote broker, the MQTT will be restarted, The user can change that behavior.

Application Design Details

• This example provides users the ability to work with Client MQTT

  • Subscribed topics The Client will connect to remote broker Subscribed to the topics “/Broker/To/cc32xx” - General topic that will print the data on the uart
    “/cc3200/ToggleLEDCmdL1” - toggle LED0
    “/cc3200/ToggleLEDCmdL2” - toggle LED1
    “/cc3200/ToggleLEDCmdL3” - toggle LED2

  • Published topics the topic will be published by pressing SW2 on the board

References