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1500 questions
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How do I stop an Amazon Echo from making a sound after restarting?
When booting, the Amazon Echo plays a sound and says 'hello', which is usually not a problem, but I'm concerned that if I have a power failure in the night, the Echo might reboot and play a loud sound, waking me up.
One user seems to have…
Aurora0001
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2 answers
What's the difference between the Pelco D and Pelco P protocols?
Pelco uses 2 different protocols to send PTZ (Pan, Tilt, Zoom) commands to cameras: Pelco D and Pelco P. I'd like to understand the difference from a high-level perspective. Are they meant for different use cases? Is one more feature-complete than…
Fabio says Reinstate Monica
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Disadvantages of decentralized peer-to-peer networks in IoT
I have recently read an article about why IoT should switch from the now dominant centralized (server - client) model to a decentralized peer-to-peer solution.
Reasons against centralization:
Connection between devices will have to exclusively go…
Bence Kaulics
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8
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Does IFTTT's Alexa channel support 'text ingredients'?
IFTTT has support for Amazon Echo (and the Alexa assistant) through the Amazon Alexa channel. Some channels allow you to specify variables, known as ingredients, from a trigger which will be passed into the output event.
The Google Assistant channel…
Aurora0001
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8
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Using Wi-Fi hardware for ZigBee
Is it possible to use Wi-Fi adapters for communicating with ZigBee devices? Wi-Fi and ZigBee both use the 2.4 GHz range, so the radio hardware should be identical, right?
Since I can not find any information on this in the web, I suppose there must…
Questioneer
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8
votes
1 answer
Sensors for a Validation Research
I've been searching for wireless sensors that could track the following metrics:
Location (GPS)
Heart Rate
Head Movement
Length of Steps
Skin Conductance
Pavement location
(relative location compared to the walking lane, needs to be more accurate…
Rotem R.
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Carrier Specific Processes details
I'm looking at creating my own IoT module and want to understand the various certification processes.
I've read this: Will using a GCF/PTCRB certified module in my design risk the device getting blocked by Network Operators?
That post does not…
user3696153
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8
votes
2 answers
Make Embedded Board NTP Server for Arduino boards in the subnet
I have an Embedded Board where the distribution on it is a custom Linux Distribution based on Yocto.
I have added ntp and via ntpd I will sync time with the common ntp pools either via UMTS 3G dongle or Ethernet.
This board along with some ESP32 PoE…
Shan-Desai
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8
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Is a simple UDP messaging a good idea for IoT Sensor?
I am working with NB-IoT Modem - Quectel BC95 that will be used in a simple IoT sensor that will periodically (Once per hour) send measurements to our server.
Because of the restriction in place by the service operator, I can't use the hardware…
Oli Řeháček
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8
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1 answer
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 problem when your IoT network is based on a star…
Aurora0001
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8
votes
2 answers
How does an ESP8266 "advertise" it can handle Alexa "relative volume" commands
As I understand more I WILL edit this question. For now, I am guessing at what I need. To make it easier for people to help, I'll tell you the over all purpose:
I have programmed an ESP8266 to advertise it is the TV and that it can turn the TV on /…
st2000
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8
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What does the Lively Medical Alert Watch Monitor?
According to MakeUseOf.com, the Lively Medical Alert Watch...
... allows remote health monitoring of your loved ones. The smartwatch can track steps taken as well as other kinds of daily activities, plus it provides an emergency assist button that…
anonymous2
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8
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Commercial Arduino Reprogrammable Smart Plug
Has anyone reprogrammed a commercially available smart plug, such as the Etekcity Voltson? Are there plugs available with open source Wi-Fi chips in them that perform better than an ESP8266? I’m looking for recommendations on a reprogrammable plug.…
Jesse
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8
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2 answers
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 floor with dozens of devices scattered about…
David
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8
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1 answer
Connecting air conditioner to Apple's HomeKit
I'm planning to connect my air conditioner to Apple's HomeKit app. At first I searched for ways to do it, but I couldn't find a solution that would work for that project.
As I've found, Apple actually released a 'non commercial' protocol…
Rafał M
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