Internet of Things Stack Exchange
Internet of Things Stack Exchange

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1500 questions
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How can I review a smartphone sensors readings on a Dell gateway?

I have got a Dell edge gateway 5000 with Linux Snappy 15.04 as OS. I have installed the gateway access point and I can connect the gateway from my smartphone. Now, I need to read the smartphone sensors like accelerometer, touch screen co-ordinates,…
Joey
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Connect to Chevrolet Cruze Hot-Spot Wi-Fi

The Chevrolet Cruze (2016) is supposed to have a Wi-Fi hot-spot. I do see it showing up in my available network connections, but how do I find the password? From my memory, the dealer didn't say what it was, and if they did, I don't remember what…
anonymous2
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Is the Nest Cam recording even when "switched off"?

The Register have published an article suggesting that the Nest Cam could be recording even when told to switch off: Alphabet-owned Nest says there is no truth to the allegation that its internet-connected home CCTV cameras continue to record video…
Aurora0001
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Can I backup/export settings from SmartThings?

I was wondering if SmartThings supports backing up the settings (or perhaps exporting it in a machine-readable format such as JSON or XML), so that if worst comes to worst, I won't lose my settings and configuration. I read this thread which…
Aurora0001
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Does CoAP have a lower footprint than MQTT?

I recently read a Quora question about whether CoAP or MQTT is more lightweight, but the answers don't seem particularly satisfying and all contradict each other: the top answer says MQTT takes fewer resources, and another below that says CoAP is…
Aurora0001
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Creating indirect (managed) connection between audio source and sink in CSR bluecore VM

After looking around this site and the meta (for example, here and here), I am assuming this question is on topic here (but let me know if it's not) I am using CSR8675 Bluetooth chip with ADK4.0.1 (Audio Development Kit; the software suit for…
user17915
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HomeKit 16.2 architecture update killed MyQ home bridge

I have a Chamberlain MyQ home bridge that was successfully controlling our garage door opener (equipped with an 888LM MyQ control pad) for years, until last Tuesday when we performed the HomeKit "upgrade" after installing iOS/MacOS/iPadOS/tvOS 16.2…
nsayer
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Best practices for secure Over The Air updates

What are the best security practices to follow when issuing an OTA update to a fleet of IoT devices? What are the significant causes for concern? For example, preventing an update from being intercepted following established standards platforms…
Noam Hacker
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Why arp -a does not show all devices connected to WIFI?

I am trying to see the IPs of all the devices connected to my WIFI. Everyone suggests to use the command arp -a in the terminal but when I do so I get always the same list of devices. I try to connect new ones but they do not show up. However if I…
Federico Gentile
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Can you teach Alexa a new skill by voice?

Can you enable a new skill in Amazon Echo by voice? Ideally, I'd like to ask Alexa which skills they offer related to a specific category (like dictionary), then I'd like to enable one. Is this possible?
kenorb
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Cannnot send from Arduino to Raspberry pi via LoRa

I am trying to send messages from my Arduino to my Raspberry pi. But I don't understand why the pi isn't receiving the messages. On the Arduino side I'm using an Arduino UNO with a Dragino Lora/GPS shield, using the Radiohead library. On the Pi…
metichi
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Decrypt ZigBee traffic of IKEA Tradfri

I'm currently trying to decrypt the traffic in a IKEA Tradfri Network (some bulbs, a 5-button remote, a gateway). I use a CC2531 Sniffer with ZBOSS and Wireshark to sniff the traffic. This is working perfectly fine but I am having a hard time…
ItsMarvolo
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What will be the result of the following connection scenario in an MQTT network?

In MQTT it is the client who initiates the connection with a CONNECT message. The first field of the packet is the clientId: The client identifier (short ClientId) is an identifier of each MQTT client connecting to a MQTT broker. As the word…
Bence Kaulics
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How does the Nest Protect autotest?

I've been reading about Nest's various devices, and one particularly useful device has come to my notice: Nest Protect. However, one thing still puzzles me. It says on their web page that: The new Nest Protect has been redesigned from the…
anonymous2
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ESP32-CAM Camera init failure, SCCB write failure

I can successfully flash my ESP32-CAM to do the blink demo but when I try to run the code below I get the following error (b/t the asterisks/bar.) It seems the "Serial Camera Control Bus" (SCCB) is not able to connect to write to the buffer in…
Jerrad
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