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1500 questions
10
votes
3 answers
How to map the identity and control of slave devices behind the programmable logic controller?
In the area of industrial internet of things, there are so many industrial slave devices behind the programable logic controller, they are not given any ip address or identity, how would we to map these devices 's identity and their controls over…
user824624
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Can I send my GSM IoT device via airpost?
Is legal to send my GSM IoT device which is powered by a ~2000 mAh (3.7 V) lithium polymer (LiPo) battery via air post? (Or even take it with me inside my suitcase?)
Also does it make a difference if the device is powered on or off?
IIIIIIIIIIIIIIIIIIIIII
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Can a Mosquitto MQTT client forcibly disconnect another?
I've been wondering how an MQTT client could instruct the broker to disconnect a client by some means, in case I need to force-disconnect a client from my MQTT server (for example, if it's misbehaving somehow and not responding correctly).
A…
Aurora0001
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3 answers
Testing the success of Over the Air updates
What is the best practice to ensure an IoT device has been updated successfully?
What do you need to do in order to test OTA updates and authenticate devices? Taking it a step further, how can you monitor/manage the software versions (updates) of a…
Noam Hacker
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10
votes
2 answers
Does the Ōura ring measure heart rate well enough to assess HRV?
The wrist-worn devices generally don't measure the heart rate precisely enough to measure heart rate variability (HRV). Does the Ōura ring measure heart rate precisely enough to get quality HRV data?
Christian
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1 answer
Harmony Hub Security
Today I—likely—stumbled upon a major security leak in my home automation setup.
Scenario
I installed the ha bridge github project on my Raspberry Pi, mainly to see what it can do. I literally just followed the first few steps, downloading and…
Helmar
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votes
3 answers
Class of Wi-Fi connected home automation devices
I would like to know the term for the class of home automation devices that are Wi-Fi connected directly to an access point (not through a bridge like Z-Wave etc.).
If I understood this class, then I could search for a light bulb that is bridged via…
gatorback
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10
votes
2 answers
Using Login with Amazon (LWA) to Connect Custom Alexa Skill Fails
I created an Alexa Smart Home Skill to go enhance my home automation setup. The goal is to look into voice controlling my Raspberry Pi via Alexa. To do so I followed this Amazon developer blog to reach the mandatory account linking between the Alexa…
Helmar
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10
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3 answers
Do Internet-connected lighting systems save energy overall?
Many manufacturers of 'smart lighting' systems claim that connecting your lights to the Internet of Things will save energy. For example, Samsung SmartThings use energy savings as a key selling point, and have a case study that promises large…
Aurora0001
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10
votes
2 answers
Will multiple simultaneous biometric sensors create unbreakable security for devices?
This article quotes the CEO of Image Ware,
[The solution] according to Miller, is multi-modal biometrics which he claims makes
it virtually impossible for the wrong person to access computer
systems.
His company uses existing hardware and…
grldsndrs
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10
votes
1 answer
SmartThings Hub and Nest Thermostat
Is it currently possible to link a Nest thermostat with the Samsung SmartThings Hub?
The Nest is not available in the list of thermostats to add, within the SmartThings App. However, is there at least a SmartApp that allow a bit more automation?
If…
tbm0115
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votes
1 answer
How do I generate a Time-based One-time Password with IFTTT?
I recently registered with IFTTT, which seems like a fantastic service to chain events together in order to create a smart home or automate various services.
I've just found the Maker channel which allows you to make simple HTTP requests (e.g. GET…
Aurora0001
- 18,520
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10
votes
1 answer
mosquitto_sub: command not found
I'm using a raspberry pi image that has the mosquitto broker installed. To troubleshoot, instruction was to run:
pi@raspberrypi:/ $ mosquitto_sub -v -t "gateway/+/rx"
However that resulted in:
-bash: mosquitto_sub: command not found
Even though…
Chris
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votes
1 answer
Is it necessary to create a x number of MQTT topics for x number of devices?
Currently in my project in which the controller(client) sends sensor data to the server and receives feedback from the server with some additional data, uses MQTT protocol for communication. It has 2 separate topics for client and server.
For…
ron123456
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votes
1 answer
How to get Alexa to play music using Pandora without saying "on Pandora"?
Whenever I say "Alexa play Metallica", it says that it is not found on Amazon Prime. It only works the way I want it when I say "Alexa play Metallica on Pandora"
My Default music library is set to Amazon Music and Default station service is set to…
Nyxynyx
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