Internet of Things Stack Exchange
Internet of Things Stack Exchange

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1500 questions
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Does Google Home support any NFC use cases?

The IFIXIT Google Home tear-down reveals the Marvell Avastar 88W8897 WLAN/BT/NFC SoC. Are there any known NFC use cases that the Google Home supports? Any announcements from Google if the device will enable a NFC related feature by the way of…
sob
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What's the difference between Jackdaw and KillerBee on RZ Raven USB Stick

What is the difference between Jackdaw and KillerBee on ZigBee USB Stick, both seem to be sniffing packet, but Jackdaw can act as a network interface, and KillerBee is only used for pentest? As far as I understand it, you can't use either to connect…
Terry BRETT
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Wireless Video Doorbell with ability to save recordings on a local server

I've been searching for a wireless (i.e. it has an internal battery) video doorbell which has the ability to save recordings onto a local server. All the ones I could find seem to only offer cloud storage (which I don't want to use due to privacy…
mrnovice
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Alexa can't find my own library on spotify

I just bought an Echo Dot from Amazon, and added my spotify premium account to it but when I asked "Alexa, to play my library," it replied with "I can't find any music in your library." Is there anyway to fix this problem?
Mateo
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Save each recording on Master from ISD1820 Voice Board

While looking for a voice recording module, I found ISD1820 to be one of the cheapest and with good SNR. I am just not sure of the fact that whether each recording from it can be saved to the master (here RPi). If anyone here already have an…
Ashish K
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What is the 'auth token' in Blynk?

In the below Blynk program, they have used the line: char auth[] = "76aeba5832304e10917b4e1748c34039"; What is mean by the 'auth token'? Why is it required for Blynk to function correctly? Program #define BLYNK_PRINT Serial // Comment this out…
DRISHYA K
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Recapture/reset the first frame from a motion detector every N seconds

I am doing a project based on a motion based detection program. It detects changes in the background as "motion" so I'd like a way to recapture a new first frame every few minutes to replace the current one to fix this issue. I am using a Raspberry…
Marciano Ng
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Are wearables considered IoT?

With the advent of several devices that are now considered wearables (fitbits, snapchat spectacles, apple watch, etc) are these devices considered IoT? Does it depend on the type of connectivity? For instance, the Apple Watch has WiFi and fitbits…
Adam Oakley
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Android Things: GPIO button/switch handler only responds once

I am working through the tutorial for the Android Things SDK and I have the following set up: I hooked up the hardware via the Android Things SDK and have a working handler for the button/switch working but it only works once. After that I need to…
Luke
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Can I implement FAT on a microcontroller to access USB/SATA drives?

I am interested in connecting a 3.5" hard drive to an IoT device that I am building based on a microcontroller (e.g. an Arduino) which doesn't run a mainstream operating system. As far as I know, to use a 3.5" hard-drive you need a full operating…
Aminadav Glickshtein
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How to start IoT development to send commands from IoT Hub to Device

I'm a .Net developer recently started working on WindowsAzure IoT, but my role is just creating web API's to provide data to client (Mobile App) sent by IoT devices. I want to send commands to devices, instead of just receiving data sent by…
Shri
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EC-GSM-IoT frequencies

As far as I know EC-GSM-IoT is deployed in band with the regular GSM frequencies, but so far I couldn't answer the following questions: Do providers set aside dedicated frequencies in their GSM range for just EC-GSM-IoT or are the IoT devices…
cQQkie
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What protocol should I use to download large files?

I have an ESP32-based device connected to the Internet using WiFi. Sometimes it needs to download a "large" file (200-300 MB) but it does not need to store it. Instead, it needs to send it via SPI to another device. So, my idea is: Open a "stream"…
Mark
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How do debug pairing of matter/thread devices with HomeKit (Apple TV 4K 3rd gen)?

I am trying to connect 2 Eve motion blinds (thread based devices) to an existing HomeKit setup. The home hub is an Apple TV 4K (3rd) gen. When I scan the barcode of a blind, it is recognised. When I select Add to HomeKit on my iOS device, it starts…
pulse00
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Is there a way to request all topics using HiveMQ?

I have a HiveMQ MQTT server that I am running. When I connect using MQTT explorer I can see all of the topics and sub-topics. However, I can't seem to find a way to recreate this with the HiveMqtt Java SDK. I can subscribe to /# but that only works…
Jackie
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