Internet of Things Stack Exchange
Internet of Things Stack Exchange

Questions tagged [wireless]

For questions about non-wired communication in IoT devices, particularly where you do not have a specific protocol or transport in mind.

Wireless communication can use a variety of different protocols, achieving different ranges, bandwidth and reliability. Wireless is generally synonymous with radio communication, but can also be used to include optical networking, and inductive coupling.

This tag should be used where the question is not specific to a certain protocol.

If your question relates to or , you should use those tags in preference.

77 questions
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Safety of a smart switch on a fireplace

Would it be unsafe or considered "bad practice" to replace a gas fireplace switch with an IoT enabled smart switch? I would like to think there would be no issue, but, I want to make sure that it's not going to break any fire safety codes in my…
tbm0115
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Adding Devices to Samsung SmartThings

I've got the Samsung SmartThings system installed in my house, but I've encountered a few situations where a new device (e.g. an in-wall outlet) couldn't be found through the SmartThings App on my Android phone. A temporary fix for me was to move…
tbm0115
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Why are Zigbee hardware modules so expensive?

The Zigbee hardware looks quite simple to produce1, why are they so expensive? For comparison I can get a 855 Mhz wireless module for 2-3€ but I can't find Zigbee modules under 15€. [1]
jwillmer
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Temperature sensors affected by rain

I am not sure if this is the best place to ask a question like this. I am working with a wireless sensor network that measure temperature, humidity and illuminance. I have read that outside sensors, should be located in a place where rain does not…
User 23
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Wireless communication technologies for indoor location-tracking

I need to develop a solution for determining whether an object/tag exists within a defined perimeter. The perimeter would be located indoors so GPS isn't an option. It would be an approx 10 metres x 10 metres rectangle. The 'tag' needs to fit in a…
tpag26
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Power consumption of ANT/ANT+ compared to other wireless sensor network technologies

ANT/ANT+ is a proprietary but open access multicast wireless sensor network technology. It's data rate and the resulting application throughput of 20 to 60 kBit/s is significantly reduced compared to its competitors, i.e. Bluetooth and ZigBee. For…
Ghanima
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Sensors Communicating With the Pi, BLE / Wifi

I want to place a Pi 3 somewhere in my house and battery powered sensors. The Pi will read the inputs from e.g. the same level, one level above and the garden. So 1-2 regular brick walls in between and a range between 0-50m. I looked into different…
Andi Giga
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4 answers

Difference Between ZigBee and Z-Wave?

I've have installed Z-Wave switches and outlets in a few places around my house. However, I noticed when purchasing the devices that there were a couple of different wireless options available in the brand I was looking at. I'd be curious to know…
tbm0115
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What should be considered when building a wireless sensor network?

This question originates from a question asking about a specific detail about building wireless sensor networks. While answering the question, I wanted to share some general guidelines for the planning process of a wireless sensor network. So let's…
koalo
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Suitable wireless technologies for high density industrial IoT

I have a requirement to design M2M communication devices for a factory which has 1000 nodes (machines) within 100m of each other. The devices will be wired to get power and will transmit a payload of 8Kbps. What is the most suitable wireless…
SamHW17
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IoT 2G wireless data - service providers options in USA

What are the service providers options in USA for IoT 2G data? Project scenario: raspberry pi 3 devices that will be collecting data in remote areas I would buy modem modules compatible with the wireless network requirements Each device would need…
RandomUser
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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 API returns: { node: 1, uptime: 1234556, …
Shan-Desai
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IoT device (siren) with RESTful APIs

I am fairly new to the IoT world, so I need help designing a system. Scenario: I have an application that sends messages to a Service Bus/ Message Queue in Azure. The messages can be classified into three categories: CryForHelp [Urgent…
abc
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Which protocol should I use for automation devices in a home environment?

I have a project to automate things in a house. I am a developer but a beginner in electronics and IoT. What should I use to communicate wirelessly? Wi-Fi, Bluetooth... Where should I look? I need a cheap, low consumption and tiny solution, for…
Morpheus
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Why arp -a does not show all devices connected to WIFI?

I am trying to see the IPs of all the devices connected to my WIFI. Everyone suggests to use the command arp -a in the terminal but when I do so I get always the same list of devices. I try to connect new ones but they do not show up. However if I…
Federico Gentile
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