Previously, we looked at MQTT (An introduction to Messaging Protocols for constrained devices – Part 1: MQTT), a tcp-based messaging protocol which has been gaining traction in the IoT communication scene since it was submitted to the OASIS standard group back in 2013. In this post, we are going to look at another popular protocol called CoAP.
What is CoAP?
Short for Constrained Application Protocol, CoAP (RFC 7252) is a lightweight RESTful M2M protocol designed to work over UDP.