Imagine a situation like we had in the previous section where we want to put an IoT gateway in the middle of nowhere behind a SATCOM terminal, but for various reasons, AWS Snowcone isn’t ideal. Maybe we intend to deploy it once and never physically visit the site for 5 years. How could we run […]
Category: The Yocto Project
The Yocto Project – Architecting for Disconnected Edge Computing Scenarios
You are likely aware that many of the smart devices in your home or workplace run on Linux. If you’ve ever wondered what distribution they run, the answer is probably none. They probably use a custom-compiled Linux kernel that minimizes its footprint and maximizes its security profile. This is typically accomplished via the Yocto Project. […]
Embedded Linux devices as IoT gateways – Architecting for Disconnected Edge Computing Scenarios
Millions of smart devices around the world are built on AWS IoT Greengrass. From doorbell cameras to washing machines to industrial HVAC units, Greengrass is deployed at a massive scale – the quiet hero of IoT. Let’s elaborate a bit on two types of embedded device solutions based on AWS IoT Greengrass: Wearable devices for […]
Passing MQTT messages through the IoT gateway – Architecting for Disconnected Edge Computing Scenarios
Now that we’ve given you a general overview of how AWS IoT Greengrass itself is put together, we will walk through options for connecting IoT devices such as sensors and cameras as things behind the Greengrass Core device. Local MQTT broker and the MQTT bridge IoT devices can send MQTT messages directly to AWS IoT […]
Understanding AWS IoT Greengrass relationships – Architecting for Disconnected Edge Computing Scenarios
The following figure provides an overview of the relationship between the multiple logical constructs you must configure within the AWS IoT Core and AWS IoT Greengrass services in-region. Remember, all the Greengrass v2 agent does is dial home and fetch its configuration from AWS. This includes the components (software) it needs to download from S3 […]
The AWS Snow family as an IoT gateway – Architecting for Disconnected Edge Computing Scenarios
When running AWS IoT Greengrass on an AWS Snow family device, customers find the ability to host small ML models that have been pre-trained in the cloud particularly useful. Here are some real-world examples: Transcription/translation: Passengers on trains cannot always hear the announcer (or hear them clearly). To improve accessibility, passengers can subscribe to an […]
Using AWS IoT services in DDIL scenarios – Architecting for Disconnected Edge Computing Scenarios
AWS has long been a leader in the IoT space. They offer a wide range of managed IoT services and customers have been operating IoT solutions on AWS at scale for over a decade. It is a very large and powerful toolbox, but at the end of the day, the challenge is right there in […]
Overview of DDIL – Architecting for Disconnected Edge Computing Scenarios
In this chapter, we will explore some of the most challenging edge computing scenarios – that is, those where connectivity back to an AWS region might be intermittent or non-existent. It is difficult to effectively run a globally distributed system when the endpoints aren’t consistently reporting back. Even in such circumstances, AWS services allow customers […]
HTTP request headers and URL query strings – Utilizing the Capabilities of the AWS Global Network at the Near Edge
When a client on the internet uses their browser to make a request for a URL to a server, more information that the URL itself is passed in the form of HTTP request headers. This includes information such as the name and version of the web browser (user-agent), the language the client prefers (accept-language), and […]
AWS regional edge – Utilizing the Capabilities of the AWS Global Network at the Near Edge
When you create a VPC and attach an internet gateway or NAT gateway, the AZs in the associated region need a mechanism to connect to the internet or other regions: Figure 8.2 – AWS regional transit centers This is why, in addition to the direct interconnects AZs have with each other, each region also has […]