Questions tagged [networking]
For questions about networks of Internet of Things devices and their administration, management and security. Consider using more specific tags instead of this where they apply, since this tag is intended for generic questions about networking itself.
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Remote sensor cloud connection
i'm just starting out in Arduino, IoT etc; I was given the Elgoo Uno R3 Arduino starter kit at the weekend and i've been trying to soak it up.
I would like to make a number of sensors for my van, ...
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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 ...
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MQTT Client behind router and Port forwarding for subscription of Client [closed]
I use MQTT (Mosquitto) and several ESP8266 for sensoring issues.
I want that the clients also can "subsribe" to trigger actions on the clients.
The MQTT Server is placed in a VLAN of my main router. ...
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CoAP protocol using californium java library
I am working with CoAP californium library using java and my problem is that I want to get the requested resource from client in the main function of server here ..
public static void main(String[] ...
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Is Google home an IoT Device or a WSN base station?
They say Google home is an IoT device but it has the ability to control other devices like lights, Air conditioners, etc. (in smart homes) which is more like a base station in the Wireless sensor ...
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Does server running on local host constitute IoT? [closed]
I have created a network, using mobile hotspot (without internet connectivity), between microcontroller and pc.(intranetwork) The designed server right now works on the local host. Will this be ...
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510
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Stream Raspberry Pi camera to Android/iOS over internet without port forwarding? [closed]
Problem :
I want make live stream from my camera attached to Raspberry pi 3 b+, which is connected to home WiFi. Streaming should be over internet. So that any client like Android/ iOS can stream it ...
3
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Cellular Base station from ethernet
Does anyone know of any devices that can take an ethernet connection and turn it into 4g to act as a base station? I am trying to find a solution to test data connection for a significant amount of ...
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How to implement out-of-home when developing an IOT device?
I have a Raspberry Pi that tells you through web sockets and a sensor the amount of electricity you are spending in real time.
I created an iPhone app as a front-end that basically just paints the ...
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Can portable routers be connected to power supply for months without damaging their batterry?
I am looking for a solution to provide internet connectivity to my iot device through a router which would not be affected by power failures (of no more than 3 hours).
The options that I can see are ...
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What network technology can host 1000s of local IoT devices?
I'm analysing the technologies for an IoT device that would need to be installed in a commercial environment. The requirement is to install thousands (or maybe even tens of thousands) of small sensors/...
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What's the formal name of this network configuration?
I'm researching a network inside another that can't access the internet but can be accessed by the internet. I've seen terms like cascading and heard something like a "v" configuration but neither ...
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Simple NAT implementation on ESP32
I have an ESP32 wroom32 that has WiFi internally and an ethernet port. I want to be able to connect my phone to the WiFi and access a webserver running on the ethernet port. Schematically this looks ...
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485
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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 ...
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How to setup internet in neighbourhood, completely disconnected from regular internet? [closed]
I read in past (few years back), there is this device which can be installed, like a server and delivers access to websites in certain radius. It also uses WiFi and repeaters to provide access.
This ...
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Using Raspberry Pi as a Lora Node for a TTN setup
I already have a LoRa gateway that I made using a NodeMcu with ESP8266 and now I want to send data from a Raspberry Pi 3 through that gateway to the TTN.
The first thing that I did was to connect ...
user7604
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How to access internet-connected home when phone moves between LAN Wi-Fi and Cellular?
My 20-year-old home control computer is on my LAN and has incoming port forwards for remote access. My iPhone can access it either way, but I have to stop and think which connection it is using, so ...
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Microchip RN2903: TX/RX distance with internal antenna
My question is about the maximum transmission distance achieved with the Microchip SoC RN2903, only using its internal antenna.
I've been doing field tests in urban environments, with this module and ...
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Connect to I/O remote through VPN router
I have two I/O remotes hooked up to a router running as an OpenVPN client. I am trying to connect to the devices from remote, but it is not working.
The VPN connection works fine, and I can access ...
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Is static IP needed if using VPN to connect to IoT devices?
I have an IoT solution that I need to connect to from remote.
I don't have access to open ports nor set static IPs on-site where the IoT devices will be hosted so I was looking for other solutions.
...
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Connect IoT devices to AWS
I have a Moxa I/O Remote connected to a Raspberry Pi running some scripts through pymodbus. I am using MQTT to publish & receive changes/requests in the I/O remote to a web service.
The idea is ...
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How can I use End-to-end encryption in sensors network?
I have been reading about XMPP and its extensions. One of them called (XEP-xxxx: Sensor-Over-XMPP) which is really interesting.
I have read also about another XMPP extension which is OMEMO protocol ...
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Efficient Server- and Protocol structure for raspberry, smartphone and 3rd-party-device network
I am new to this forum and this field. I am looking forward to good criticism and tutorials/links/instructing suggestions to build a nice system with as less effort as possible while achieving all ...
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Remote com (serial) connection through cellular IoT
We need to be able to make a com (serial) connection remotely off site from PLC type device.
We have completed a POC for sending some signals to Azure IoT utilizing a Siemens IoT2020 running linux ...
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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 ...
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Could not ping ESP8266 Wifi module connected to an Arduino
I have been working with a water flow counter which sends data over wifi. I'm using an ESP8266 wifi module. Everything is correctly connected and I've gotten to the point where it's correctly ...
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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 ...
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How to connect 1 million devices over Layer 3 IP-protocol
I have edited the question after reading about MAC-to-MAC protocol (RMII/MII) here: https://community.nxp.com/thread/316374.
My IOT device looks like a USB stick. I am building a datacenter for 1 ...
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Embedded C—check internet connection
Is there any way to check if actually my embedded device has a working connection (i.e. can reach the WAN)? My device has no RTOS, so I cannot rely on OS functionalities like ping. I can see that the ...
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Synchronized data between Hardware's storage and Server's database
I saw in China's bus system, that there are devices inside the bus which can handle e-payments. The process is something like this:
Passengers come in the bus.
Passengers use a QR-code in their ...
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When using LTE-M's eDRX mode, is the TCP connection still open?
We currently have an IoT device, that connect to our servers using a raw TCP connection over 2G, and from times to times the device send a "keep-alive"-ish message , as we've seen it's consume less ...
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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 ...
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Raspberry Pi outdoor connectivity for large farm [closed]
I have several raspberry pi zeros connected to agricultural sensors in a large farm(1500+ acres). What is my best solution for getting the agricultural data from them wirelessly? I want to get the ...
user5399
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What do ACK, SB, SF, LG, RES mean in Sigfox network?
I found these abbreviations in an official documentation and I don't know what they are stand for.
Can you explain it to me please? I know that it is basic question.
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SIM5320 MQTT TCP connection closing unexpectedly after time
I have been working on an MQTT protocol using the SIM5320. I am familiar with the AT command documentation, and have a working implementation with an Arduino.
Firstly, I open a network socket with AT+...
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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 ...
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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....
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Is there any way to access local server from outside without port forwarding? [duplicate]
Situation
I need to access an ESP8266's Wi-Fi local server from outside.
Like Xiaomi Yeelight (YeeLight Introduction Web Site Link) or LOHAS LED
(LOHAS LED Web Site), I have to control it from ...
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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 ...
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760
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SSH into an Orange Pi connected to the internet via 2G GSM module
I wanted to SSH into my Orange Pi remotely. It will be connected to the Internet via a 2G GSM module. How should I go about it? Usually it's ssh username@ip address. The setup isn't implemented yet so ...
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Build a “Smart Home”—Lack of Security [closed]
I am preparing to make my home smarter and for some reasons I am not happy.
I read several articles about secure the smart home, but there was no clear solution. I don't know why, but it seems that ...
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Standards for non-Internet-connected WiFi devices?
I'm planning to do a lot of home automation. For that I will host a private isolated WiFi network to which all my devices will be connected to. The devices will be simple lights, RGB LED strips (...
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How will network bootstrapping work for headless embedded-SIM IoT devices?
Is there something akin to the Wi-Fi Alliance DPP (Device Provisioning Protocol) in the world of embedded SIM?1 If so, it would be really nice to get an outline of how it would work at a high level.
...
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Mobile network on Android Things SoM?
I want to build an Android Things device that can report its location via mobile network (4G LTE, LTE-M if possible, 3G & 2G).
How can I plug such a mobile modem and connect it properly down to ...
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Does 6LowPAN stack helps in requirement of gateway?
After 6LowPAN stack. Every node can have the different internet IPv6 address.
So,
Is 6LOWPAN stack is present in GATEWAY or sensor mote as well?
In a case of sensor mote, is a GATEWAY required? Can't ...
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Does CoAP depend on IEEE 802.15.4?
In the CoAP specification, it is implied that IEEE 802.15.4 can be used in conjunction with CoAP. Is this a requirement or can CoAP also be used with other OSI layer 1, 2 protocols such as IEEE 802.11,...
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Creating an HTTP GET polling service on a Raspberry Pi Client
I have the following hardware:
3 x Particle Photons. Each serve as an HTTP Server
1 x Raspberry Pi 3 which will serve as an HTTP Client
Upon requesting an HTTP GET to any of the the Photons, the ...
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How can I synchronise data between devices, avoiding loss of messages and duplication?
I have an IoT network of devices sending data to each other, with data being stored in a database.
If I have a device sending 10 packets/API requests in sequence, sometimes only a few reach their ...
10
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1
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941
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Alexa cannot identify Fauxmo and ESP8266
I'm trying to control an ESP8266 using fauxmo. The programme compiles correctly, but when I run the Alexa app to find devices the ESP doesn't show up.
The ESP is definitely connected to my home ...
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Connecting your Pi to the internet when mobile
So I am working on a project where I have torn away all the RC related parts of an older 1/10 scale Racing Buggy I had as a kid and replacing said parts with some Arduinos and a GPS to create a super ...
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