Posts made by Cees Meijer

@MarcoPeli So ‘deactivate’ should indeed stop the device from receiving data.
Any idea hoe long this cached value stays in the system ? It’s been more than 24 hours since I deactivated a device, but I still get the data.

In the portal there is an action ‘Deactivate’ for a device. A deactivated device appears with a strikethrough in the list, but I just noticed that it is still receiving messages and passing them on the the endpoint. So what does it actually do ?

When will there be an option to add a second endpoint for a specific device through the portal? As far as I know this now is still only possible by sending the ‘subscribe’ message to the API, which I often forget when adding another device.

Currently we arew using NB-IoT from T-Mobile for all our units in the Netherlands. They are hardcoded to use band 8 and the dutch APN:

lte.attach(band=8, apn="cdp.iot.t-mobile.nl")

What is required to move my NB-IoT units from The Netherlands to Belgium ? From what I see, the roaming partner in Belgium (Orange) uses band 20, and maybe the APN will be different ?

After testing the first LET/M units, I wanted to add some more. Which was not possible in the Starterkit project. It told me to check the page with possible plans. So I went there, and chose a new ‘Pilot’ project. But this Pilot project seems to be NB-IoT only, and I do not see a way to switch to LTE/M ?
So how do I start a LTE/M project that supports more than 2 SIM cards ?

And it works ! I could register my SIM card, and after starting my FiPy test program it connected within 30 seconds. Thank you.

@afzal_m OK. So I spend two days pestering the people at PyCom and here to find out why my FiPy would not connect to the network, and now it all probably comes down to an incorrect SIM card ? So you learn something new, every day…
But if this solves it, it would definitely make my day ! (And no, I don’t blame anybody, this is just what engineering is about, I suppose. )

I’m trying to get a connection throught LTE-M, As I posted here:
https://forum.iotcreators.com/topic/754/how-to-use-lte-m?_=1636726441348
In the Starterkit project I can register a SIM card, and when I start entering the ICC number, I get a dropdown from which I can select a number. One of these numbers indeed matched a SIM card that I had ( except for the last digit, but I assume this some kind of test number). Now I cannot get (any of) my devices to connect to the network so I thought I’d use a different SIM. But none of the other 20 SIM cards I have here is listed in the dropdown-box, and when I try to enter the number manually, it is not accepted. (Error: We cannot find your SIM card in our system). So what should I enter here, or is there another way to register the cards ?

@uta Thanks. That was indeed one of the thing I was wondering. So I need to treat this more as a ‘GSM’ replacement than an NB/IoT alternative.

I notice that LTE/M is mentioned occasionally, and there is an entry in the documantation on how to get started with the LTE/M starterkit, but what next ?
I have several questions which I cannot find the answer to (or maybe they are there, and I just cannot find them.)

• Do I need separate SIM cards for LTE/M, or can I use my existing NB-IOT ones?
• How do I get the LTE/M data to my own server ?
• I understand the LTE/M functionality is not yet in the dashboard and is sheduled for next year, but can I manage my subscriptions manually using the API ? And if so: How ?
• Are multiple LTE/M stations even supported, or is it currently limited to 1 for the starterkit ?

@Ederuiter Thanks. I did not know about ‘mysubscriptions’. But it seems indeed the easiest way to list only those.

@Ederuiter But if I GET all Subscriptions, I do always get at least one subscriptionId section, with a list of IMEI numbers that match the numbers on the dashboard. And when I add something through the dashboard, it will also show up in this list. So what am I seeing then ?

Often I only see a mistake in my forum post after clicking the ‘Submit’ button. But I do not have a clue on how to edit posts after I posted them. Is it simply not possible, or am I missing something ?

Originally I just added devices throught the dashboard, which were then automatically added to a subscription (what I was not even aware of). Later, after ading a second endpoint, I found out that this second endpoint would only receive data after manually adding a subscription, which I did by using he Postman script:

{{base_url}}/m2m/subscriptions?type=resources

First I did this for a few single IMEI numbers, and then I also used it to register several numbers at once.
Later I noticed that everytime I do this, a new subscription, with it’s own ID gets created. So now when I ‘GET’ all subscriptions I get a long list with a all different subscription ID’s, and even some duplicate IMEI numbers with different ID’s.
Now I just found in the documentation that I can also add IMEI numbers to existing subscriptions, so that is probably a better thing to do for the next set of IMEI numbers.
But how do I even know which subscription belongs to what ? There obiously is one subscription that is used for the dashboard, but how do I know which one this is ? And how is it possible that all other subscriptions automatically go to the second endpoint ?

What is the easiest way to handle all this? The documentation just gives the CURL examples, and the existing Postman scripts make it a little easier, but I don’t think this very scalable once you have hundreds of devices.

Small bug (which I already reported two weeks ago, so it’s not related to the upgrade) : The ‘Refresh Table’ link on the portal does not work. I already tried different browsers, but no result.

@magnatron In the portal.

@magnatron This happened to me as well, but after refreshing the page I found out that the device did actually register. It just gave these error messages.

UPDATE: I have tried the same procedure with a different unit, and that works fine. I suppose it’s related to this specific unit and so I have forwarded this question to support.

@Stefan-de-Lange : Looks like you’re right. Lets try again:

After the remark from @magnatron I have corrected the enty, and it’s now without newline. But it still does not seem to work.:
So maybe someone spots a different issue in the entry ?

@magnatron Wow. Thats a very good observation. I had not noticed it, but you are right: it’sthe only one that has a newline character in it. Thank you !

Some time ago I created a second application URL as described here: https://forum.iotcreators.com/topic/644/how-to-create-a-second-application-url/3?_=1621238681425
At the time I found out that this does not automatically sends all messages to this second application, but it did work after I subscribed to a specific endpoint. Recently I tried to add another endpoint, but the subscription thing does not seem to work.
I have used Postman ‘Register subscriptions (resources)’ with the specific IMEI of my station. I checked if this is indeed part of the subscriptions, using the 'Get Resource Subscriptions".
The data however never arrives at my second application. I tried to delete the subscription (which worked, it no longer showed up in the ‘Get subscriptions’) and then subscribe again, but that did not change anything. Does anyone know what I’m doing wrong ?

It certainly been a stressful day for all of us, I assume. For me, however, upgrading during office hours is still preferable since this allows me to monitor the status, and contact our customers when something goes wrong. It’s a pity the upgrade failed, but I’m glad you kept us informed during the process.