AWS IoT Greengrass Version 1 entered the extended life phase on June 30, 2023. For more information, see the AWS IoT Greengrass V1 maintenance policy. After this date, AWS IoT Greengrass V1 won't release updates that provide features, enhancements, bug fixes, or security patches. Devices that run on AWS IoT Greengrass V1 won't be disrupted and will continue to operate and to connect to the cloud. We strongly recommend that you migrate to AWS IoT Greengrass Version 2, which adds significant new features and support for additional platforms.
Module 5: Interacting with device shadows
This advanced module shows you how client devices can interact with AWS IoT device shadows in an AWS IoT Greengrass group.
A shadow is a JSON document that is used to store
current or desired state information for a thing. In this module, you discover how one
client device (GG_Switch) can modify the state of another client device
(GG_TrafficLight) and how these states can be synced to the AWS IoT Greengrass
cloud:
Before you begin, run the Greengrass device setup script, or make sure that you have completed Module 1 and Module 2. You should also understand how to connect client devices to an AWS IoT Greengrass core (Module 4). You do not need other components or devices.
This module should take about 30 minutes to complete.
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