Questions tagged [data-transfer]
For questions about the transfer of data between different devices and/or between different software on the same device
34
questions
2
votes
2answers
58 views
I need to transform MQTT topic, is it possible?
I’m new with MQTT, I have a mosquitto MQTT broker on a Raspberry Pi.
I have some topics from a client in this format /topic/lighton can be true or false.
In other hand I can invoke some topics like /...
3
votes
1answer
57 views
Documentation similar to open API for IoT protocols like MQTT for open data sharing
A lot of documentation exists for RESTful APIs via tools like Swagger. But I am looking for a documentation tool or something in the likes for open data sharing for protocols like MQTT or OPC-UA.
A ...
5
votes
2answers
89 views
How can I transmit this information from my device using the least data possible?
I have got a Raspberry Pi setup to transmit things over socket from my project. It currently does this over cellular data on a pay as you go plan, so I would like to optimise it. All that needs to ...
0
votes
1answer
75 views
How can I build a network of 5 smartphones that log accelerometer data into a computer?
I would like to build a network consisting of 5 smartphones (preferably Android, if it makes any difference) that log synchronized accelerometer data into a computer (like a data-logger). How can I ...
1
vote
0answers
56 views
Receiving Data from MacBAT 5 in python
I need to be able to communicate with a PLUM-EVC, MacBat 5 from a remote server using Python. I have been given parameters, IP and Port which are required to get the data from EVC.
I am completely ...
2
votes
3answers
57 views
Accessing legacy device with RS232 over 4G Internet
I have an old device, that's located in a place where I don't have an easily accessible data connection. What I do today is I drive to where this device is located and plug a db9 rs232 serial ...
1
vote
1answer
53 views
Third party IOT Device, traffic through AWS. No local access. Proper way to sniff traffic?
I have a climate monitor/controller that is closed source, has an app for android and ios. all traffic goes through AWS. No open port on device, no local webpage, no local access from app.. Very ...
3
votes
1answer
51 views
Wireless IoT Devices at mm-wave frequencies
The upcoming 5G can be beneficial for IoT in various aspects:
higher data-rates
low latency
better utilization of bandwidth
potential wireless power transfer/harvest
Introduction of mm-waves (28 GHz ...
4
votes
1answer
53 views
remotely update a raspberry pi with limited data
What's the proper hence best way to push updates to a Raspberry-pi with a limited Mobile Data Cap (1mb/ day).
My first plan was to set up a Git repository and pull files from it once a week for ...
3
votes
1answer
253 views
Stream real time data from smart band/watch to computer via Bluetooth
Description: I have a smart wrist band (link to Amazon) which has Bluetooth connectivity.
My goal is to read real time on my computer (running Ubuntu 18.04) some of the data that is tracked by the ...
2
votes
3answers
809 views
Send sensor data over internet to a server [closed]
I had a project planned on monitoring sensors. I wanted to read sensor data
over the internet. How should I proceed with the setup?
Any help is appreciated.
5
votes
2answers
547 views
Retrieve raw data from Smart Plug?
I want to monitor the energy/power consumption of household appliances (for example an oven) by using a smart plug. The problem is that I cannot get the raw data to my computer. The measurements are ...
3
votes
2answers
123 views
How to send data collected by two different sensors simultaneously?
I have two different sensors connected to my Raspberry pi and I have to send the data to other device. The transmission of data is through wireless network. I have been asked to send the data in ...
7
votes
1answer
358 views
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 ...
2
votes
0answers
50 views
Sigfox Callback CustomValue's issue Sending NULL instead of wanted values
I'm working on a project, and I want to use a Sigfox callback to send some data.
But when I want separate my payload as I coded it, all my values on Callback are NULL.
This is my Callback, and this ...
6
votes
1answer
791 views
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 ...
5
votes
2answers
465 views
How rapidly should the data from IoT devices be sent to the cloud?
I am configuring a Sonar Distance sensor to send data to a cloud.
But the problem for me now is: I do not know when to send the data to this cloud.
As far as I know, I could send the data ...
7
votes
2answers
193 views
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 ...
1
vote
2answers
70 views
Sending Data via a Local Network [closed]
I'm sure there is a very easy answer to this but I'm struggling to search for the answer on Google due to missing crucial technical knowledge and terminology.
If I have two phones that are 1km ...
11
votes
2answers
171 views
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/...
8
votes
2answers
303 views
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 ...
19
votes
5answers
10k views
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 ...
4
votes
1answer
346 views
MongoDB/Redis/CouchDB/Any Graph DB with S3 for IoT implementation
I have an IoT use-case (Should I use the MQTT protocol?) and decided to implement the SMACK architecture. I hope, Up and running the SMACK stack would be very much cost. Right now I am not expecting ...
8
votes
2answers
554 views
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 ...
6
votes
3answers
626 views
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....
3
votes
0answers
93 views
Proper steps of data processing in an IoT cloud platform development
We are developing an IoT cloud platform with known components like Cloud Gateway, Stream Processing, Device Shadowing, etc...
The question is what is the proper sequence of locating pre-validation of ...
10
votes
1answer
281 views
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 ...
7
votes
1answer
167 views
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 ...
6
votes
1answer
233 views
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 ...
1
vote
0answers
101 views
IoT types of traffic [closed]
What are the types of traffic (bulk, burst, asynchronous, ...) that we can observe between IoT devices and clients (or base stations/collectors)?
Can we find a survey on this subject?
I am also ...
10
votes
2answers
642 views
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 ...
7
votes
2answers
2k views
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 ...
8
votes
1answer
254 views
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 ...
41
votes
6answers
11k views
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 ...
