Title: CoAP client
Description:
A simple CoAP server showing how to retrieve information from a resource.
This demo assumes that the platform of choice has networking support,
some adjustments to the configuration may be needed.
This sample will make a GET request with path 'test' to the IPv6
multicast address reserved for CoAP nodes, so the URI can be
represented as:
coap://[ff02::fd]:5683/test
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Building and Running Project:
This project will print all the octets of the response received, more context can
be obtained by using a tool like tcpdump or wireshark.
See the net-tools[1] project for more details.
It can be built and executed on QEMU as follows:
make qemu
[1] net-tools:
https://gerrit.zephyrproject.org/r/gitweb?p=net-tools.git;a=tree
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Troubleshooting:
Problems caused by out-dated project information can be addressed by
issuing one of the following commands then rebuilding the project:
make clean # discard results of previous builds
# but keep existing configuration info
or
make pristine # discard results of previous builds
# and restore pre-defined configuration info
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Sample output:
reply: 60 00 00 00 00 24 11 40 fe 80 00 00 00 00 00 00 5c 25 e2 ff fe
15 01 01 fe 80 00 00 00 00 00 00 5c 25 e2 ff fe 15 01 01 16 33 16 33
00 24 3d 86 60 40 00 01 ff 54 79 70 65 3a 20 30 0a 43 6f 64 65 3a 20
31 0a 4d 49 44 3a 20 31 0a (76 bytes)
<the values may be different>
954baea90b