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Questions tagged [protocols]

For questions about choosing a fitting or identifying a used protocol in IoT applications and systems. If you do know the specific protocol use a more specific tag. Please add specific protocol tags if you are choosing between specific protocols.

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How to build a roll call IoT app?

I've brainstormed an idea for an IoT hobby project but don't know exactly where to start in terms of the implementation. Here's the idea. 10 of my friends who live <.5 mile radius of my house like ...
DW2702's user avatar
  • 3
1 vote
1 answer
99 views

How do I access my Matter devices when I’m not at home?

How do device developers and major platform providers in the world such as Google Home, Apple, Tuya, and Aqara do to control Matter devices remotely??? Do they still use traditional IoT protocols like ...
IcyWater's user avatar
1 vote
1 answer
114 views

OPC UA vs MQTT for internal interoperability

I am working on a project which will require networking with multiple IoT devices and sensors (scales, temperature sensors, actuated switches, etc.). I am familiar with the MQTT architecture, while I ...
Rexcirus's user avatar
  • 231
3 votes
1 answer
168 views

LoRaWAN Mesh Protocol

I'm interested in building a network that is based on the LoRaWAN networking protocols. I've seen multiple references to LoRaWAN supporting a mesh configuration (instead of the standard star network ...
Jordan's user avatar
  • 131
1 vote
0 answers
189 views

Tuya pairing protocol

Are there any vendor public or reverse engineered data about the protocol used to pair new device to the Tyua app (using the "easy" mode)? As I understand the process, it is needed to: ...
sharpener's user avatar
  • 111
2 votes
5 answers
2k views

Getting telemetry from Solax Inverter Pocket WIFI

I'm trying to get telemetry from my Solax hybrid inverter which has a "Pocket WIFI" device installed without the information going across the internet (its my data, its sent unencrypted and ...
davidgo's user avatar
  • 173
4 votes
3 answers
3k views

Is Matter, the unified protocol for IoT, usable for hobbyists?

I am a domotics enthusiast and I use some ESP8266 chips for various uses, mostly with HomeAssistant on my RPi. I recently bought some Zigbee devices and the benefits seem very interesting for IoT ...
Dan Chaltiel's user avatar
0 votes
0 answers
44 views

Control a Sony EVI-D90 PTZ (visca protocol) by using a joystick who is not support visca but only Pelco

That's nice to have such community to look for help when we need. I have a Sony EVI-D90 camera which support VISCA protocol, and I have a joystick controller from HIKVISION DS1003KI which supports ...
Jeanluc Carbonel's user avatar
0 votes
0 answers
48 views

Is IoMT technologically different to IoT?

It seems from papers such as this that IoMT is just IoT for medical devices with no new technological developments. Is there anything about IoMT such as a standard that somehow differentiates it from ...
SeanJ's user avatar
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1 vote
0 answers
52 views

What exactly is an IoT Definition Engine?

So , i was watching an IoT primer video on YT, which i found to be helpful and moderately detailed In the picture shown, they were showing the IoT Reference Architecture ( which i believe to be the ...
Muhammad Yasir's user avatar
3 votes
2 answers
122 views

How to use SSH server on a remote device and overcome routing issues

I am designing an embedded Linux device that acts as a gateway for sensor data. In some cases this device will use a back-haul that I don't control (e.g. customer supplied cell or cable modem). I ...
Nick's user avatar
  • 133
2 votes
0 answers
55 views

Protocol that supports data integrity with intermittent connectivity?

Currently we are using LwM2M but we are running into use-cases for which we can't find neat LwM2M features. I also looked at MQTT but it seems to have the same struggles. These use-cases include: ...
Kodiak's user avatar
  • 21
1 vote
0 answers
69 views

Pan Tilt Bracket for CCTV

How can I change the Address of the pan tilt bracket for CCTV (Pelco-D Protocol) with a PC(USB to RS485)? Any software available? I tried with my HIKVISION DVR but couldn't change the default address &...
Saif-Rajon's user avatar
1 vote
1 answer
427 views

Has any one developed M-Bus protocol on STM controller?

M-Bus is a building management side protocol which helps to communicate with the controller to get the available parameter values like current, voltage, power etc. I have to develop an architecture ...
Shubhanshu Rastogi's user avatar
1 vote
0 answers
114 views

MQTT JSON format for IoMT industry?

W.r.t. formatting the payload content of MQTT messages one usually sticks to standards like SensorML for distributed sensor networks or Sparkplug for IIoT. Are there JSON format schemas/standards for ...
thinwybk's user avatar
  • 173
6 votes
1 answer
203 views

MQTT JSON format for process automation industry?

W.r.t. formatting the payload content of MQTT messages one usually sticks to standards. In case the AWS IoT platform is used the format of the payload content is not pre-defined. There's just a best ...
thinwybk's user avatar
  • 173
0 votes
0 answers
42 views

What does the abbreviation "SPINS" for the security protocol for WSN mean?

Since the protocol SPINS is as far as I understand it commonly spread I would like what exactly the abbreviation means in the paper "SPINS: Security Protocols for Sensor Networks" by Perrig et al. he ...
baxbear's user avatar
  • 121
2 votes
2 answers
119 views

How do I minimize cellular data usage for my embedded project?

I have an embedded project that is transferring data from the device to my server over a TLS cellular connection. The device needs to communicate with the server only when the sensor captures some ...
Chris Fernandez's user avatar
-3 votes
1 answer
59 views

How are journeys tracked via contactless card? [closed]

In London, and soon in Paris also, contactless bank cards can be used to pay for public transport. The system tracks a user's journey, through the "tapping in" and "tapping out" of the user; and then ...
simonalexander2005's user avatar
1 vote
0 answers
281 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 ...
NealCaffery's user avatar
1 vote
0 answers
58 views

Zigbee protocol for local indoor sensor like a Beacon (Low Battery) is Possible or exist? [closed]

I would like to start some studies on a new area, look for new solutions, because I already work in an automation company, but first I would like to know if it counts, if it has pros or cons or your ...
Edson Filho's user avatar
2 votes
0 answers
68 views

MQTT implementation recommendation for an IoT device

I have used HTTP/s based REST API for IoT application and it works well but consumes more data bandwidth and power. Also, the server resources consumed are too high for the long polling-based method. ...
Alan's user avatar
  • 21
7 votes
2 answers
15k views

What's the difference between the Pelco D and Pelco P protocols?

Pelco uses 2 different protocols to send PTZ (Pan, Tilt, Zoom) commands to cameras: Pelco D and Pelco P. I'd like to understand the difference from a high-level perspective. Are they meant for ...
Fabio says Reinstate Monica's user avatar
2 votes
0 answers
97 views

Looking for MQTT broker and client recommendations

Working to make a network of remote sensors using MQTT I'm looking for an implementation of a broker an a matching client. Requirements broker to be deployed in a cloud server like EC-2 and client ...
Juan Pablo Becoña's user avatar
4 votes
1 answer
72 views

Comparative power requirements of various wireless networking protocols

Does anyone have a real- world comparison of various wireless networking protocols, such as Zigbee, LoRa, BTLE (and BT5, if there any production models to measure), even WiFi (any others)? I am ...
Mawg's user avatar
  • 3,110
0 votes
1 answer
554 views

Difference between Network, Communication, and Messaging protocol

My understanding is network protocols are BLE, Wifi, ZIgbee, etc. and messaging protocols are http, mqtt, etc. So my questions are: Is my understanding so far correct? Are network and communication ...
PagMax's user avatar
  • 129
6 votes
0 answers
79 views

Are There any IoT Switches/Plugs that use HPAV Instead of WiFi?

As the number of WiFi devices on a network grows congestion issues start to take hold. Devices farther away from the AP may have trouble maintaining a constant connection, and low priority IoT devices ...
Andrew C's user avatar
5 votes
1 answer
185 views

Medical data IoT communication protocol?

We are considering connecting a medical device into a hospital patient system we are developing. We are based in the EU and must adhere to the EU Regulation on the protection of personal data ...
SeanJ's user avatar
  • 1,245
2 votes
1 answer
832 views

How Smart Home devices communication works

I have a big doubt that I'm not able to solve. Basically, I want to understand how the smart device that I have in my home communicate with their servers, or better, how their servers can call its ...
Pasquale MJ's user avatar
3 votes
2 answers
920 views

How do smart plugs connect to Wi-Fi via mobile applications?

All smart plugs generally have same method of connecting to Wi-Fi and with the mobile application. It's like Check the Wi-Fi light on device Search for device's Wi-Fi broadcast and connect Add ...
Sarath's user avatar
  • 131
8 votes
3 answers
760 views

Is a simple UDP messaging a good idea for IoT Sensor?

I am working with NB-IoT Modem - Quectel BC95 that will be used in a simple IoT sensor that will periodically (Once per hour) send measurements to our server. Because of the restriction in place by ...
Oli Řeháček's user avatar
1 vote
0 answers
65 views

IoT hub on private network [closed]

I want to make a hub for file sharing in my private network like DC++. Is there any library which I can use or do I have to develop it from start. This can be developed for Arduino or Raspberry PI.
Eragon's user avatar
  • 19
6 votes
1 answer
115 views

Simulation tools for centralized, decentralized, or distributed wireless sensor network

I want to simulate the collision avoidance between different objects that use (IoT based) centralized, decentralized, or distributed wireless sensor network. What are free software available to ...
maxpayne's user avatar
  • 161
6 votes
2 answers
372 views

What are the differences between Modbus addressing zones?

I am trying to implement a control software (client) that communicates with a number of distributed devices (servers) over Modbus. I have been reading device documents to find out where the data I ...
Seth's user avatar
  • 183
5 votes
2 answers
1k views

What is the library to be used to implement CoAP in ESP8266?

I am using Arduino IDE to program my ESP8266. I would like to send data from one ESP8266 module to other. So I would like to use CoAP for this communication. Is there any standard or good library to ...
a-c-sreedhar-reddy's user avatar
4 votes
1 answer
2k views

How to convert messages between CoAP and MQTT protocols?

I am a master student and my topic is about making protocol conversion among IoT communication protocols for example between CoAP and MQTT in order to make the devices that use MQTT protocol to ...
user6820's user avatar
1 vote
0 answers
85 views

OMA Lightweight M2M Protocol

I just stumbled across the OMA Lightweight M2M Protocol (OMA LWM2M) https://www.youtube.com/watch?time_continue=22&v=g-41ZdcTnXc https://en.wikipedia.org/wiki/OMA_LWM2M https://github.com/...
Rexcirus's user avatar
  • 231
6 votes
1 answer
682 views

WiFi communication between PC and embedded system on LAN

I'm here asking some support for a newbie in embedded communication. My situation is the following: embedded device: STM32L4xx microcontroller + ATWINC1500 wifi module WiFi management code (driver) ...
panc_fab's user avatar
  • 311
9 votes
2 answers
382 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 ...
anonymous2's user avatar
  • 4,872
6 votes
1 answer
67 views

Secure pairing support in various RF standards

I would like to understand if secure pairing can be implemented in all (or none?) IoT RF standards. For example: BLE provides Out-of-band possibility, which seems like only really secure option to ...
NoobPointerException's user avatar
8 votes
3 answers
179 views

Ultra Low Energy point-to-point protocol choice

I am lost in a forest of IoT protocols and need help. I'm looking for right hardware and protocol for my application. I would like to make a device of my own, but use an existing stack and hopefully ...
NoobPointerException's user avatar
16 votes
2 answers
4k views

How can a device get the SSID and Password of my Network without WPS?

I'm studying ways to make an IoT device access an user´s wifi network. I know about the WPS way, where the device 'broadcast' a signal and the router, after being commanded to listen, 'receive' it and ...
Eric Akira's user avatar
9 votes
2 answers
689 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 ...
SKK's user avatar
  • 261
4 votes
1 answer
215 views

Is there any surveillance camera that supports UDP broadcast upon motion detection?

I use EventGhost as my IoT hub. The easiest way for me to hook it up with a surveillance cam is UDP broadcast. So my question: Is there any surveillance camera that supports UDP broadcast upon motion ...
Xdakut Wizzlekrank's user avatar
6 votes
0 answers
150 views

How to make node select the least preferable parent as preferred parent in RPL protocol?

I would like to simulate in Cooja the following: one of the nodes selects the worst parent that provides the worst routing information as its preferred parent i.e. it breaks the Objective Function ...
akalthubaity's user avatar
13 votes
6 answers
1k views

Choosing appropriate protocol for IoT Application

We have at work an IoT scenario where the Thing/Constrained Device sends its GPS position in a regular interval to a given server. The constrained device is an Arduino-like board that is battery-...
bgusach's user avatar
  • 321
6 votes
1 answer
75 views

Which services/resources discovery protocols or mechanisms are mainly used in IoT solutions (Amazon IoT/Eclipse IoT)?

Considering the dynamic and unpredictable aspects of IoT environments, where the advertised services availability may change at any moment due to poor wireless links or battery shortage. I wonder ...
iThabet's user avatar
  • 61
7 votes
1 answer
124 views

Protocol for over 300 metres and minimum of 20 kbytes datarate?

We are trying to choose the most suitable connection protocol for wearable devices, with the following constraints: 300 - 500 devices will simultaneously connect About 1 km2 site area—coverage is ...
dicobraz's user avatar
7 votes
1 answer
687 views

Wi-Fi Plug uses IPDC (Internet Protocol Device Control) for controlling via App?

I'm struggling at the moment with reversing the commands between a Wi-Fi Plug ( Amazon-Link for Wi-Fi Plug) and the associated phone app. It looks like the app controls the plug via a IPDC (IP device ...
David Lassig's user avatar
3 votes
2 answers
281 views

IoT Communication Protocols [closed]

I am trying to see the big picture of IoT Communication Protocols. For now, I am not interested in lower levels of communications such as WiFi, ZigBee, Bluetooth etc. I wanna see the possible ...
Creed's user avatar
  • 167