Internet of Things Stack Exchange
Internet of Things Stack Exchange

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1500 questions
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3 answers

Intercepting web traffic going over cellular network

If you can plug a device into the wall, or use it in Wi-Fi, it's easy to see the traffic with software like WireShark. But it seems more tricky to do it with a device that uses LTE/3G or other cellular networks to communicate. If I'm worried about a…
WayToDoor
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What are the best security practices to secure a remote IoT camera?

I have done a bit of home automation such as building a remote camera that can be turned on via SSH locally and publishes images on a Raspberry Pi run Linux server. I'm curious, though, as to what protocols are best followed when your security is…
Zeitsperre
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4 answers

How can I check if my IoT devices are infected with the Mirai worm?

I've recently heard about the Mirai worm, which infects vulnerable routers, IoT devices and other internet-connected appliances with insecure passwords. Mirai is suspected of being the cause of some of the largest DDoS attacks in history: Dyn…
Aurora0001
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7 answers

Could a blockchain really prevent malware in the Internet of Things?

This article claims that using a blockchain-based security system for an IoT network would prevent some types of attacks: Blockchain technology may help offer an answer. Gada observes that blockchain offers inherent security not present in current,…
Aurora0001
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What is the difference between MQTT and Web Sockets, and when should I use them?

What are the major differences between MQTT and Web Sockets? When using IoT for home automation - control and monitoring access over different devices, which one of them should be used when Rest API based and browser based accessibility is…
Shakti Phartiyal
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26
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6 answers

Is there a big jump between prototyping on a Pi, and using a microcontroller?

This question asks, amongst other things, if there is a big learning curve between using Python on a Raspberry Pi to prototype an endpoint, and using a microcontroller. Clearly there is a big improvement in power consumption (at the cost of reduced…
Sean Houlihane
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As a Computer Science student, how can I develop skills for an IoT job outside of formal education?

In order to do well in a Computer Science related field, a college student has to do much more than just getting a degree—they must go above and beyond to be competitive with others in the field. As a CS student, I'm relatively comfortable with the…
Greg
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2 answers

Is CoAP still used for IoT devices?

I did a prototype project for work a few years ago that utilized the Constrained Application Protocol (CoAP) for communicating with an Arduino board over a mesh network, but we put the brakes on the project due to a serious lack of security in our…
Jarren Long
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7 answers

Why doesn't the Amazon Echo respond to advertisements or reports about Alexa?

I previously asked about what you can do if Alexa is triggered by a television programme, but recently I realised something strange: The Echo does not respond to the voices in adverts for the Echo, even if voices say "Alexa, play ..." or "Alexa, set…
Aurora0001
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How can I properly test my device's PCB antenna?

I'm in the middle of testing a Z-Wave device I created with a PCB antenna. I want to make sure that the antenna has a good range and the signal strength generated is strong enough and comparable to similar devices in the field. How can I properly…
Dom
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24
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4 answers

How can I dim or turn off the light of the Philips Hue bridge itself?

I have a Philips Hue bridge 2.0 in the bedroom. At night the blue light from the Philips Hue bridge itself is way too bright for a bedroom. How can I dim or turn off the light of the Philips Hue bridge itself? Is it possible with settings or do I…
Gerd Castan
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24
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2 answers

Can Mosquitto support multiple brokers?

I've been considering Mosquitto for a MQTT message broker for a home IoT network, but I'm concerned that the broker could be a single point of failure which could bring down my whole network if it failed, since all messages have to go through the…
Aurora0001
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24
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4 answers

Making a smart light switch

I want to make a home automation system, and I need some computer-controllable switches. The reason I can't use relays is that I also need the switches to be switchable manually and not programmatically (because I don't want the light to get stuck…
Danya02
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5 answers

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 in the backend. The data size would be 135…
Mourish Khan
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23
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Why would IPv6 be necessary for the IoT?

I recently ran across this quote from Security Intelligence about the Internet of things and IPv6: Analysts predict that there will be 30 billion connected “things” by 2020, yet the IPv4 address space only accommodates 4 billion and change. Even…
anonymous2
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