Sending and Receiving CoAP Thread data

[simon8]

Hi, i wonder how could i send data from a coap_server to a coap_client with thread, for example a temperature data: what are the main functions to declare and use to do so?

Thansk

[simon8]

Fine, but i just don't understand the mechanism....If i know the IP of my thread device how could i send a GET request for example, from my smartphone to get temperature data from that device? How phone and  thread device will understand each other?

[SwRa]

Hi Simon,

One way of doing this is by following this path: Thread device--POST-->CoAP Server--GET-->Mobile CoAP Client App

If the thread device can POST to a CoAP server, then everything is exactly same as solution mentioned in nRF91 simple tracker solution – Nordic Developer Academy (nordicsemi.com). There is CoAP client that can run on mobile phone.

Here is a reference for thread device POST/GET CoAP server: (+) OpenThread COAP Client to a public server over Internet - Nordic Q&A - Nordic DevZone - Nordic DevZone (nordicsemi.com)

Hope this helps.

Best Regards,

Swathy