Internet of Things Stack Exchange
Internet of Things Stack Exchange

Questions tagged [data-transfer]

For questions about the transfer of data between different devices and/or between different software on the same device

This tag is to be used for any questions about the transfer of data between different devices and/or between different software on the same device.

47 questions
48
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6 answers

When and why to use MQTT protocol?

I am developing a device which measures temperature, humidity and mass. Currently it uses HTTPS to upload data to a remote server. Now I know that there is a protocol called MQTT which is claimed to be the "protocol of Internet of Things". In what…
Bence Kaulics
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24
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5 answers

Which backend database is suitable for the IoT implementation

I have to provide the IoT service for my customer. MQTT, Kafka and Rest Services components will be used to ingest the data from the devices to the database. I need to do some analytics over the data in the backend. The data size would be 135…
Mourish Khan
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13
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2 answers

Are there any 'minimal' power meter data loggers?

I mean, a device that will just read, persist, and then push the data to a (my) server without having to buy a 3rd party software license. The data being, in this case, electrical generation/consumption. I've been looking at many "smart" meters and…
mfdebian
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13
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1 answer

Can I implement ZigBee with generic hardware?

As I understand ZigBee is only a specification of a data transfer protocol. So I was expecting to find some library that implements this protocol to use it with my MCU and RF transceiver. Instead, I only have found specific ZigBee devices (e.g.…
rattrapper
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11
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2 answers

Cheap video streaming platform using Raspberry Pi

I have a questions as stated in title - I hope it will not be "primarily opinion based" since I wanted to ask you if what I have in mind is even doable. I want to create network of couple cameras that could stream from given location to local…
sdooo
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9
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2 answers

Why is 5G a plus for IoT?

I'd been hearing a lot about 5G recently from a few people I know, and one of the frequent claims that I heard was, "5G is going to be such a great help for the Internet of Things!" I may be a hopeless cynic, but I began to wonder, just why would…
anonymous2
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9
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2 answers

Should I use the MQTT protocol?

I am planning to start to implement the below IoT use case. Use case The IoT devices will send 100k messages/minute to the gateway via repeaters and the gateway will transfer the messages to the cloud. I want to track the employees in an…
SKK
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8
votes
1 answer

Parity calculation problem

I’ve been doing a fair bit of DIY home automation (RF; 433MHz) lately across many different devices - which worked well for all except one. It's basically a pool robot with some really crappy remote control. I collected some data using a BladeRF SDR…
Omegavirus
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7
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1 answer

Sending data from remote locations

I am a member of the Ardingly Solar Team, a group of students designing and building a solar powered car to race in Australia in the world solar car challenge. I have designed a system that collects all data from the cars BMS and motor controllers…
Bibaswan Bhawal
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7
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1 answer

Thingspeak: message limit, update limit and bulk updates

I am looking at ThingSpeak for logging sensor data. I would like to log three different variables at a frequency up one datapoint per second. This would be 86400 samples per day or 259200 values per day. The thingspeak "pricing" page says that on…
Mathias Schultz
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7
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2 answers

Upload measurements with unix script ( RESTful API?)

A thermostat device returns JSON like data from the command line: curl -s http://192.168.X.Y/tstat/humidity {"humidity":51.00} It would be interesting to setup a UNIX cron job to periodically script the upload of the data to a host so that it can…
gatorback
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7
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3 answers

How can I push data from car-mounted microcontrollers to a remote server?

Firstly, I'm a newbie in the IoT field. Hardware parts are quite new to me. I want to make a small project. That is creating a box attached into a car that can keep track its location and temperature. And, inside the box, there should be a…
juggernaut156
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7
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1 answer

Does Apache Kylo support IoT data consumption?

I manually setup a Kylo on my linux recently and tried some data pipelines on it including raw data and real-time streams. Results were as expected! Curious about IoT support of Kylo Did anyone successfully consume streaming data coming from an…
nitinr708
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7
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2 answers

Raspberry Pi to send sensor's data to server continuously and receive commands from server

I would like to design a system using Raspberry Pi that sends the sensor's data to server continuously and receive commands from server. Will MQTT suit my needs ? Is there any way to do so if I use Java on my Pi? Edit By continuously I mean that…
Shakti Phartiyal
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7
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1 answer

How does transmit power influence the accuracy of beacon sensor readings?

I have some Bluvision Beeks beacons equipped with temperature sensors. I can adjust their transmit powers. I am wondering if setting a higher transmit power for a particular beacon will result in a better sensor reading than if the beacon were set…
Undertherainbow
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