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Questions tagged [cumulocity]

Cumulocity is a proprietary, cloud-based Internet of Things (IoT) applications development platform.

Cumulocity is a proprietary, cloud-based Internet of Things (IoT) applications development platform with REST APIs to connect IoT devices. For connecting devices, many embedded environments using , , , , and others are supported.

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Is it possible to send a table of measurements to Cumulocity, instead of just one measurement?

I'd like to take a consumption measurement every 1 minute, but upload every 15 minutes to Cumulocity, from my Option Cloudgate. So there would be a total of 15 measurements to upload, each with its own value and timestamp. Would this be possible?
danmwendo
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Cumulocity SCADA Widget - Can I use a value calculated/transformated from a measurement on a SCADA widget?

Can I use a value calculated/transformated from a measurement on a SCADA widget of Cumulocity? I mean, I need to convert a temperature measurement (from -20 to 100) to a value between (-90 to 90) for use it in a SVG graphics. Thnks
Bitwalk
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402:Unknown Client error when subscribing to a <>/<>

I have been working with the Cumulocity API through Postman. I can perform a handshake and get a successful response. I can subscribe to a channel using <>/* But if I include a specific statement name, it returns 402:Unknown client…
danmwendo
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Error: Module administration/tfasettings not found

I'm busy working on developing some plugins and apps, and when i am running c8y server locally and i try to enter Administration, i keep getting the following error: Error: Module administration/tfasettings not found Any ideas?
danmwendo
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MQTT broker communication to MQTT Client

I already have a cumulocity client that communicates with the cumulocity broker through MQTT. What should I do in order to send data back from MQTT broken in cumulocity to mqtt client? (Say the client sends some data and I want the confirmation…
Alex Ich
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Cumulocity IoT: how to move from WAITING_FOR_CONNECTION

I registered a device using the api and now I see this: How do I move from WAITING_ON_CONNECTION to a different state? Update When I do the following: curl -v -u bob@iotthings.com:iotthings \ -H 'Accept:…
Trewq
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Get "User created/update/delete" using CEP

It is possible to have a stream of event in CEP related to a changes in the user API ? What we want to achieve is create a device when a user is created. Any Ideas ? thanks in advance!
Jorge
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How do I display device on map using mqtt?

I am trying to get my device appear on the map. From the MQTT program I sent this message: publish("s/us","401,14.118795,79.890456") The location got updated on the "events" tab of my device settings: DETAILS Time 14 Dec 2017 16:40:09 Type…
user2726634
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Cumulocity existing plugins sources available?

Are the sources for the pre-defined plugins available for further use? I couldn't find anything in the bitbucket repo where the ui-examples are. I'd like to implement a more complex plugin than the examples provide based on the Device Management…
socona
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How to package and deploy cumulocity server-side agents?

We are creating a server-side agent which periodically fetches data from nodes and maps this data to cumulocity measurements, events. What is an elegant approach for hosting and/or packaging such a server-side agent? We are hosting our own instance…
jakob
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How to receive cumulocity real time notifications with SmartREST?

We use the cumulocity REST API. Regular real time notifications work, e.g. we subscribe to /alarms/*, start our connection/polling loop and when we create an alarm we receive the expected JSON. We did not install any specific modules or statements,…
rob retro
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cumulocity mqtt measurement

I am pretty new to Cumulocity and I am trying to get data into the platform from my own device using mqtt and the smartrest templates. I can get data in using the static templates but they only support certain data types. I am struggling to create…
sgse
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cumulocity's rasberrypi's "c8y-agent.sh" file not working

I am trying to connect my cumulocity-rpi-agent to cumulocity so that I can have two options either accept or cancel. But this options will be available only when i execute sh c8y-agent-debug.sh this file using sh command. I followed below steps 1)…
vaibhav
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Cumulocity - Registering Raspberry Pi 3B - Agent not able to connect

Using Raspberry Pi 3B. Performed the following steps: 1)I installed the agent as per instructions. 2) Updated the config cumulocity.properties file with the correct host. 3) Tried registering the device by putting in the serial number on the…
ms2015
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Simple calculation using CEL

I would like do do some simple calculations with two single dataports. E.g. calculation of electric power from current and voltage. -> SQRT(3) * V * I * cos phi. The result shall be written to a new dataport "Power". Can anyone give me a hint how…
Marc
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