Questions tagged [mesh-networks]

For questions about the mesh network topology and its connection to the Internet of Things. Use this tag where the question specifically relates to the topology (e.g. why you might use this topology over another), but not where you are merely using a mesh topology and it isn't relevant to the question.

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1answer
16 views

How to tell if a Zigbee device is a Zigbee Router

The Zigbee spec defines the types of nodes: coordinators, routers, and end devices. I'm looking to buy some Zigbee devices, but I can't find in the device manual if the device is a Zigbee Router or an ...
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1answer
67 views

Two Wi-Fi networks

I am a new home owner and I am using the Google Wi-Fi Pods for a mesh network. I recently found out that my garage door opener myQ does not support mesh networks. When I installed the Google Pods I ...
2
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1answer
141 views

Manually initiate time sync in PainlessMesh

I'm using Expressif ESP32 dev boards and the PainlessMesh library. My nodes do an initial time sync, but after a while I've seen odd behavior where the calculated offset is negative... implying that ...
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0answers
37 views

Idea about Wifi Mesh In High-Rise Building? [closed]

I’ve been reading about wifi mesh and I’m thinking, would it work if we had one wifi mesh plugged into the modem and then had many nodes going around the high-rise buildings, perhaps 3 stories up and ...
7
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0answers
60 views

Requirement for a mesh network using Zigbee or similar technology

I have a requirement to design a proprietary monitoring system. (There's some intellectual property involved so I'll describe the system with a slightly altered purpose.) Imagine a large factory ...
9
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3answers
3k views

A low cost alternative option for ZigBee stack in mesh network of sensors

We're in the step of making design decision for a wireless mesh network of individual sensors which is going to be low cost. At first research I decided to use MQTT for application layer and global ...
5
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1answer
266 views

ZigBee sleep problem

I recently built a XBee network (using Firmware version 9000 of Digimesh 2.4 TH function set of XB24c family). Currently I use the DTR pin to put XBee to sleep, and this configuration works perfectly. ...
4
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2answers
315 views

Sensor using X10 power line protocol connection to Raspberry Pi

I'm on connecting my Raspberry Pi 3B board with X10 EagleEye Motion Sensor using X-10 CM11A ActiveHome Serial interface. Can anybody share a library(C/C++, Java, Python) or open source tool used to ...
7
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1answer
171 views

Is wireless mesh a poor choice for sleepy devices?

I've been thinking about what it would take to build a temperature sensor network for the block of apartments I live in. A wireless mesh, if it would work at all, would have some nice features. In ...
8
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2answers
211 views

Are wireless mesh networks limited to PAN applications?

Reading about Zigbee, I see it described as a technology for creating personal area networks. I've also been reading about 6lowPAN, which seems to crop up in mesh settings, cementing the idea, at ...
11
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2answers
4k views

ESP8266 Mesh Network Root Node

I am working on a mesh network based on ESP8266 and it all seems to be working fine using sample code from EasyMesh by Coopdis. In his/her example, 3 ESP8266's enroll in the mesh and serves a simple ...
7
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1answer
436 views

WiFi Mesh on Windows IoT core

I have a project where I need to create a Wi-Fi mesh network of nodes sharing a distributed mesh database that requires relatively quick search access on each node. I was initially thinking of running ...
11
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1answer
230 views

Rearrange Z-Wave network

I bought a Z-Wave E27 light bulb to command a lamp from my PC for specific alerts. Obviously I had to plug it into the outlet to include it into the Z-wave network. During a few minutes it worked : I ...
7
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1answer
123 views

Do protocols based on the publish-subscribe pattern negate the benefits of mesh networks?

Protocols that are modelled on the publish-subscribe pattern such as MQTT and AMQP require a centralised message broker to co-ordinate messages being sent and received. This does not pose much of a ...
12
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3answers
1k views

Why are mesh networks used more frequently for IoT networks?

Many common IoT communication protocols I've researched have adopted a mesh topology (for example ZigBee, Thread and Z-Wave), which is a significant contrast to the usual star topology of Wi-Fi, where ...