Connect devices to the Cloud and to each other (Device Gateway and AWS IoT Device SDK) – Devices connect to AWS IoT via the Device Gateway using both HTTP and Message Queue Telemetry Transport (MQTT), an industry-standard, lightweight communication protocol designed for sensors and mobile devices, making them interoperable independent of the protocol they use. AWS IoT also supports other industry-standard and custom protocols that customers may have already implemented, and devices can communicate directly with each other regardless of the protocol they use. AWS IoT scales as the number of devices grows, providing connectivity “with low latency and high throughput” on a global scale.