Cloud connectivity software for hardware modules

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Amazon recently announced the general availability of AWS IoT Express Link. Cloud connectivity software supports wireless hardware modules to build IoT products that connect to cloud services.

In Insight from re:Invent, AWS IoT Express Link is a service introduced to create secure IoT devices, hiding the complexity of implementing cloud connectivity, a process that usually requires multiple steps like connecting to a physical layer, establishing TCP/IP communication, and connecting to an MQTT broker.

Espressif, Infineon Technologies and u-blox are the AWS partners who developed wireless modules that support multiple connectivity options, including Wi-Fi and cellular. Channy YunLeading developer advocate at AWS, uses an example of a swimming pool pump to explain the benefits of the new service:

Some devices are too resource constrained to support cloud connectivity, meaning their processors are too small or slow to handle the extra code. For example, a small piece of equipment, such as a swimming pool pump, may contain a small processor that is optimized to drive a particular type of motor, but does not have the memory space or performance to run both the motor and a connection cloud. (…) You can keep the tiny processor in the equipment and delegate the heavy cloud connection load to AWS IoT ExpressLink, allowing the manufacturer to create simple application software and avoid costly redesign.

Source: https://aws.amazon.com/blogs/aws/aws-iot-expresslink-now-generally-available-quickly-develop-devices-that-connect-securely-to-aws-cloud/

According to AWS, the service is compatible with devices of all sizes and resource constraints, which helps conserve existing processors. IoT ExpressLink integrates with other AWS IoT services, such as AWS IoT Jobs and IoT over-the-air (OTA), to schedule and perform updates, and Managing AWS IoT Devicesto monitor and update large-scale fleets.

The modules implement best practices for device-to-cloud connectivity, creating a crypto-signed certificate with a unique device ID, supporting crypto-secure boot, TLS v1.2 encryption, or superior wireless connections, encryption-secured OTA firmware updates, and encryption of all sensitive data. stored on the module.

A deposit with Examples of IoT ExpressLink is available on GitHub. Customers can order evaluation kits and send telemetry data to the cloud via the serial interface. The price of a module with IoT ExpressLink depends on the features and the hardware manufacturer, starting from around 26 USD. AWS does not charge additional fees for using the service.

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