User Manual

AWS IoT ExpressLink SARA-R5 Starter Kit - Getting started
UBX-21042016 - R02 Connecting to and interacting with the AWS cloud Page 16 of 20
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Wait for a handful of seconds for the message to arrive at the device (or monitor the EVENT pin) and
then, in the terminal application, type the command AT+GET1 and press <return>.
You should receive the response OK Hello from AWS IoT console.
6.4 Exchanging Thing-specific data and commands with the
AWS cloud
If you leave the leading / off the topic name then the TopicRoot, which defaults to the ThingName,
will automatically be prepended to the subscription.
For instance, if you typed the command AT+CONF Topic2=MyTopic (i.e., leaving off the leading /) and
pressed <return>, then subscribed to that topic by typing the command AT+SUBSCRIBE2 and
pressing <return>:
…then in the AWS IoT console MQTT test client, under Publish to a topic, you typed
/
ThingName/MyTopic into the Topic name field and, under Message payload, entered Hello just to
ThingName (or any message you like) and then clicked Publish:
…and then a few seconds later, in the terminal application, you typed the command AT+GET2 and
pressed <return>, you should receive the response OK Hello just to
ThingName.
You can also send to a TopicX using the command AT+SENDx
<message>; if that TopicX does not
start with a leading / then your entire send/get exchange will automatically occur beneath the unique
ThingName of this device.