https://github.com/1248/microcoap

A small CoAP implementation for microcontrollers
https://github.com/1248/microcoap

Last synced: 29 days ago
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A small CoAP implementation for microcontrollers

• Host: GitHub
• URL: https://github.com/1248/microcoap
• Owner: 1248
• License: mit
• Created: 2013-09-11T11:34:47.000Z (over 11 years ago)
• Default Branch: master
• Last Pushed: 2018-05-14T15:16:36.000Z (over 6 years ago)
• Last Synced: 2024-04-14T15:12:22.297Z (8 months ago)
• Language: C
• Size: 351 KB
• Stars: 331
• Watchers: 57
• Forks: 122
• Open Issues: 23
• Metadata Files:
  • Readme: README.md
  • License: LICENSE.txt

Awesome Lists containing this project

• Awesome-arduino - microcoap - A small CoAP implementation for microcontrollers (Libraries)
• awesome-embedded-systems - microcoap - A small CoAP implementation for microcontrollers (Packages, Libraries and RTOSes / CoAP)
• awesome-arduino - microcoap - A small CoAP implementation for microcontrollers (Libraries)
• awesome-CoAP - microcoap - A small CoAP implementation for microcontrollers. (Libraries / MicroPython)

README

        
microcoap

=========

A tiny CoAP server for microcontrollers.

See http://tools.ietf.org/html/rfc7252

Endpoint handlers are defined in endpoints.c

 * Arduino demo (Mega + Ethernet shield, LED + 220R on pin 6, PUT "0" or "1" to /light)

 * POSIX (OS X/Linux) demo

 * GET/PUT/POST

 * No retries

 * Piggybacked ACK only

For linux/OSX

    make

    ./coap

For Arduino

    open microcoap.ino

To test, use libcoap

    ./coap-client -v 100 -m get coap://127.0.0.1/.well-known/core

    ./coap-client -v 100 -m get coap://127.0.0.1/light

    ./coap-client -e "1" -m put coap://127.0.0.1/light

    ./coap-client -e "0" -m put coap://127.0.0.1/light

Or use copper (Firefox plugin)

    coap://127.0.0.1

Arduino problem

===============

Arduino, by default, has a UDP transmit buffer of 24 bytes. This is too small

for some endpoints and will result in an error.