I've a issue about energest module with Cooja motes. It always prints 0 permil for rx, tx, lpm. CPU ticks are always at the maximum. How can I deal with this issue ?
it says: build.xml is not found, how to fix this issue please?
Hello again,
I would like to give an update about my issue, it may help someone eventually if they face the same problem.
I found that in the radio-cooja.c file, the ENERGEST_ON functions for listening and transmitting were missed, and therefore we could never launch the energest module once the mote is one of these two states.
Which led me to update the two radio-cooja files.
But, the ticks of the CPU are at the maximum value. I think this is the value it should indicate if we use cooja mote. What do you think?
I would like to give an update about my issue, it may help someone eventually if they face the same problem.
I found that in the radio-cooja.c file, the ENERGEST_ON functions for listening and transmitting were missed, and therefore we could never launch the energest module once the mote is one of these two states.
Which led me to update the two radio-cooja files.
But, the ticks of the CPU are at the maximum value. I think this is the value it should indicate if we use cooja mote. What do you think?
Hey guys, I always wanted to develop Contiki-NG and Cooja on Windows, and finally I made it happens! Just in case anyone is interested to do the same: https://youtu.be/zfA9BINRvVk
2 replies
You need Windows 10/11 with WSL/WSL2 installed and for Sky mote you need to build MSP430 GCC toolchain build from source. Anyway, follow the instruction in the video and let me know if you have any question
And last night I added an update on how you can use VSCode with integrated WSL/WSL2 terminal for Contiki-NG development. Here is the link: https://youtu.be/PyNLdX4-vgg
guys, can someone help me to convert this C code to .sky file so it can be applied on cooja mote, thank you
(CoAP_Clinet.c & CoAP_Client.h)
https://drive.google.com/file/d/1wqOXc2sExr2QFxqUBuHfQcGqJwoEtkhv/view?usp=sharing
and the dependent file
https://drive.google.com/file/d/1KXByL1Yb2C5Gvt8OGBrB_yhsa02rbWpi/view?usp=sharing
23 replies
My current main goal is to create a mesh network of rpl/6lowpan/coap nodes that create data at an interval, route it to the border router for logging and each hop data is appended. For example, each node sends a string with their IDs appended when the string is passed through.
Right now the problem is that no communication is happening at all. I wish to first try to make it work on the basic rpl templates before moving on to the desired cc2650 platform.
Currently have a udp rpl many client / single server network. I can alter the message, but I am not sure how I would write and assign an "ID" variable to be added to the message and have it unique per mote created. I could create multiple client.c files with unique message but that would be redundant and poorly scalable.
Also looking at the template it seems clients should print the logs when they receive data from other clients, but that is not the case. How can I force clients to display a message when a packet from a sender to a different destination (root/server) is being passed on. (bonus points on tips on altering those packets)
Also looking at the template it seems clients should print the logs when they receive data from other clients, but that is not the case. How can I force clients to display a message when a packet from a sender to a different destination (root/server) is being passed on. (bonus points on tips on altering those packets)
Hi @alexstanoev,
Could you please let me know how I can save the logs of two concurrent simulations separately in COOJA? by default the log of the simulation is held in the directory of the project under the name COOJA.testlog. When I try to run COOJA on the HPC server over multiple nodes, only one node writes log in the COOJA.testlog. Is there a way to record the log of each node under a different name?
Could you please let me know how I can save the logs of two concurrent simulations separately in COOJA? by default the log of the simulation is held in the directory of the project under the name COOJA.testlog. When I try to run COOJA on the HPC server over multiple nodes, only one node writes log in the COOJA.testlog. Is there a way to record the log of each node under a different name?
1 reply
Hello guys, how can I solve the following error when run './gradlew run' in WSL Ubuntu 20.04 LTS?
I followed the instructions (https://docs.contiki-ng.org/en/develop/doc/getting-started/Toolchain-installation-on-Linux.html) but I cannot run cooja.
I also followed the video (https://www.youtube.com/watch?v=zfA9BINRvVk)
I followed the instructions (https://docs.contiki-ng.org/en/develop/doc/getting-started/Toolchain-installation-on-Linux.html) but I cannot run cooja.
I also followed the video (https://www.youtube.com/watch?v=zfA9BINRvVk)
3 replies
Hi all, im having a problem running a Cooja mode after updating my Contiki-ng folders yesterday. It compiles the mote just fine, but it cannot create it.
Any help is appreciated
Any help is appreciated
13 replies
Hello Developers. Can a Contiki NG node be a Root of one RPL instance and a child in another? I saw this presentation:www.ietf.org/proceedings/94/slides/slides-94-rtgarea-1.pdf, which says a node can be a router in one instance and a leaf in another, and I know that isn't quite the same as what I am asking. I put together a test to try. In Cooja, I made two nodes, each using the rpl-border-router example configured to use RPL classic in storing and multicast mode, but with different default instance IDs and different prefixes. Both border routers connect to a Ubuntu host via tunslip. I have RPL logging set to DBG. When I run the simulation I see the nodes exchange DIOs, each joins the other's DAG, and each have IP addresses with both prefixes. However, if I ping from the host I don't get a ping response, but do see warnings from both nodes that a loop is detected. Is there something I am missing in my configuration to allow a root of one DAG in one instance participate as a child in a DAG on another instance? I see that uip configuration is set to act as a router by default, so it seems like that I have done should be able to be handled.
2 replies
for calculating PDR , PDR = (∑ received packets by destination/ ∑ sent packets by the source ) *100%. you have to check the log file line by line to see how many packets has been sent and how many received.
similarly for the latency, you have to check the time at which first hello message has been sent by which node
Thinking aloud to open a discussion regarding metrics (PDR):
I have been researching TSCH scheduling and realized that PDR might hide network issues; for example, disconnections may occur in TSCH networks, and after a while the queue is full, and the S.O. notifies the app that it cannot generate data (at least until the link is restored). Disconnections may happen due to failure in node synchronization(IEEE Std 802.15.4 - Section 6.5.4.2). But, the PDR calculus is only performed over the generated and sent data. IMHO, PDR is an excellent measure to assess links, paths, etc. But, it could hide some TSCH issues as MAC disconnections. That's why I relate the PDR with the Expected Generated Packages: Simulation Time, Warmup time and the nodes sending interval (All nodes except root generates).
I don't know if I have explained my point clearly or if my reasoning is correct, but I think it is interesting.
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generic question: what is the quickest procedure to testing updated code in the cooja simulation? Right now I reload the simulation, but when I work with multiple mote types (e.g. server/client) , the reload causes all nodes to be set to a single type. Perhaps there's a faster way to debug, test and experiment?
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@CPA-Aarts It was a bug in Cooja I reported about 4 weeks ago. Please take a look at this PR that has the fix for it: contiki-ng/cooja#682
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