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adamrenner / mqtt-sn-tools-contiki

Contiki adaptation of MQTT-SN-Tools (MQTT For Sensor Networks) protocol
MIT License
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How to test the MQTT-SN #3

Closed RafaelMarin81 closed 9 years ago

RafaelMarin81 commented 9 years ago

Hi

I am trying to test MQTT-SN in contiki using a msp430 mote. To do that, I use the broker called "Mosquitto" in a computer. And I use the uip6-bridge of Contiki to communicate the 6lowpan sensor network with PC computer.

However, I check that the mote sends the messages towards the IPv6 of PC where Mosquitto-broker is running in port 1883. The message is shown by wireshark in the PC. But there is not any response from Mosquitto-broker.

Please, could you say the broker compatible with the implementation of MQTT-SN in contiki?? How do you test the MQTT-SN client of contiki??

Best regards, Rafa

adamrenner commented 9 years ago

Rafa, At the time that I worked on this, Mosquitto had still not implemented MQTT-SN. However, the developers of RSMB had released an open source version as they are planning to combine efforts with mosquitto. This version of RSMB was working with the contiki application. http://git.eclipse.org/c/mosquitto/org.eclipse.mosquitto.rsmb.git/ It compiles to multiple executables. You will want to use the broker_mqttsn. Also, the config file can be a bit tricky. Best, Adam

jluzuria2001 commented 8 years ago

Hi all,

I'm trying to use the [mqtt-sn-tools-contiki] of adamrenner with Z1 board of zolertia with another Z1 (running a border-router example that routes all the IP packets from a Linux machine to wireless devices and viceversa) attached to RPi as a gateway [http://git.eclipse.org/c/paho/org.eclipse.paho.mqtt-sn.apps.git].

Currently I use with the sub/pub clients offered on mqttsn-tools over linux and work fine. But when I use it with the mote board I'm getting problems with the "length of the packet" then "the connection is lost" (as is shown in the attached image )

problem

Has somebody observed this behavior or any hints how to resolve this? Thanks in advance.