Viewing Messages Received on Subscribed Topic

The toggle switch value corresponds to a short forced ON/OFF state to the yellow LED on the AVR-IoT WG Development Board. The LED will stay on/off for a short time depending on the position of the toggle switch before it resumes normal behavior of blinking to indicate the transmission sensor data through PUBLISH packets. As with sending messages, the payload is limited by the MQTT Receive Buffer (bytes) configurable in the MQTT library MCC window.

Figure 1. Viewing Messages on a Serial Terminal

There is no permanent storage or collection of the data published by the boards connected through the Microchip sandbox account. The full storage features available to Google Cloud are available to the user after the board has been removed from the Microchip sandbox and migrated to a private account.