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1500 questions
11
votes
2 answers
Intercom ring notifier with ESP8266
My project idea is to attach "something" to my Intercom and when it receives an electric signal (someone rings the door bell), contact a local web service in a home server and that server sends a push notification to phones.
The part of the project…
Mulflar
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11
votes
1 answer
What ports does an LG TV open?
I'm seeing some unexpected ports open on an LG TV model 47LN5750-UH, serial 311MXTC1E969. Below is the result from a nmap scan.
Nmap scan report for 172.16.4.4
Host is up (0.00021s latency).
Not shown: 998 closed ports
PORT STATE…
jww
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11
votes
2 answers
Cheap video streaming platform using Raspberry Pi
I have a questions as stated in title - I hope it will not be "primarily opinion based" since I wanted to ask you if what I have in mind is even doable.
I want to create network of couple cameras that could stream from given location to local…
sdooo
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11
votes
2 answers
Do I need to use MQTT or HTTP?
I'm working on a device that sense and collect information from the environment such as temperature, humidity, etc.
The device is not connected to any power source, but it has a battery, and a solar panel to charge it.
It's almost in a deep sleep…
zephrax
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11
votes
1 answer
Why does Alexa answer questions I didn't ask or prompt?
I just got a new Echo Dot and it works normally when prompted. However, three times today she said without prompting, "I'm sorry, I can't find the answer to that question." I checked on the app and three questions I did not ask are logged, but they…
Johnstoirvin
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11
votes
2 answers
Protocol for configuring IoT device settings
MQTT is widely used in IoT when it comes to exchanging application data between the end device and the host service. The publish-subscribe model makes it easy to use: no handshaking, negotiating etc (at least above the MQTT protocol layer). It's…
Amr Bekhit
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11
votes
1 answer
Are there any all-in-one chipsets that support LoRaWAN and Sigfox?
Connectivity technologies are diverging in the last times to adapt to the continuous demands. In the lack of any GSM standard there are several communication technologies. I'm interested to know if there exist chipsets with support for several…
gavioto
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11
votes
2 answers
Are there any applications where blockchain is used with IoT?
Since the emergence of these two Technologies, it can be a near future possibility that blockchain and other forms of crypto-currency will be used more frequently.
According to this article:
The decentralized, autonomous, and trustless capabilities…
Shan-Desai
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11
votes
3 answers
How can I interface a LoraWan network with MQTT?
I have been working on a project which involves creating a LoraWan network using:
Dragino lg01 as a Gateway.
An Arduino Uno and a Dragino Lora shield with a simple LM35 Temperature sensor
As for the Server, I have been looking for something open…
Mohamed Achref Dridi
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11
votes
2 answers
Configuring LoraWan Gateway
I'm trying to build a LoRaWan Network using a sensor programmable with Arduino and a Dragino Lora Shield.
I have found many solutions for creating a gateway, including an Raspberry Pi connected with another Dragino Lora Shield or with iC880A, and…
Mohamed Achref Dridi
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11
votes
4 answers
Why was the Internet-connected My Friend Cayla doll banned as a "hidden espionage device"?
According to CNET, the My Friend Cayla doll was banned in Germany because it has been classed as an illegal "hidden espionage device":
If you're considering purchasing a connected toy for your offspring, you might want to think twice.
In Germany,…
Aurora0001
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10
votes
1 answer
How to get Alexa to work with Wemo Switch?
I am trying to get a Wemo Smart Switch/Plug to work with Amazon Echo Dot. I have Amazon Echo Dot installed configured and working normally. I have installed the Wemo App on an iPhone. Using the iPhone I installed and configured the Wemo Smart Plug.…
user8055
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10
votes
1 answer
Does the Google Home have any protection against TV advertisements triggering it?
Apparently, lots of Google Home speakers were activated by Google's Super Bowl ad:
Early during tonight’s game, Google’s ad for the Google Home aired on millions of TVs. We’ve actually seen the ad before: loving families at home meeting, hugging,…
Aurora0001
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10
votes
4 answers
Do any outdoor sound sensors exist?
I recently had an F/A-18 jet fly over my house and was amazed at how loud it was. That set me to wondering how loud it actually was.
Do any outdoor sensors exist that can track decibel level?
jterrace
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10
votes
3 answers
How do I force my Amazon Echo to update to the latest version?
Version 4812 of the Echo software apparently includes the new 'Computer' wake word, which seems really exciting. However, my device is still running version 4540 and hence doesn't have the wake word yet.
The Amazon documentation says:
Your Alexa…
Aurora0001
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