CoAP Block Option

The CoAP Block Option is a feature used in the Constrained Application Protocol (CoAP) to efficiently transfer large amounts of data over networks with limited bandwidth, like IoT devices. It breaks large messages into smaller, manageable chunks, allowing devices to send or request only parts of the message at a time. This approach reduces memory load and improves communication reliability, especially on constrained devices. Think of it like turning a large file into pages; you send or receive each page separately, making the process smoother and more efficient.