Internet of Things Stack Exchange
Internet of Things Stack Exchange

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NB-IoT mobility issues

I have been reading about LTE-M and NB-IoT technologies, and it is mentioned everywhere that NB-IoT is only good (at least at its first release) for stationary applications, and on the other hand, LTE-M can better handle mobility. Unfortunately, I…
NickG
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Method to send data from a device to a backend

I have tasked myself with building a simple temperature sensor device, using a thermocouple and stm32 microcontroller. I want to be able to take readings at regular intervals (every hour or so) and log them to a Mongo.DB database. To accomplish the…
Suva23
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Protocol that supports data integrity with intermittent connectivity?

Currently we are using LwM2M but we are running into use-cases for which we can't find neat LwM2M features. I also looked at MQTT but it seems to have the same struggles. These use-cases include: Configuring sensor settings (e.g. temperature…
Kodiak
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Is using remote database (firebase) wrong idea for home automation system?

I am working on home automation system and I my idea was this: There will be client app, which will be running on a classic HTTP server (on internet). It will communicate with firebase realtime (NoSQL) database. This app will also run on Raspberry…
Petr Marek
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Android or Linux + Electron for consumer facing GUI

I’m looking to build a consumer facing IoT product that involves a display. I have been debating whether to use Android or Linux + Electron for the app, which will be running kiosk style all the time. What is the general rule of thumb for this kind…
Jalen
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Python Paho MQTT 2.5 KB messages not sending for days, while 0.1 KB messages send fine

I've got powerful dual-core IoT gateways in the field with high-speed cellular modems and good internet connections, but they fail to send 2.5 KB MQTT messages to my AWS IoT message broker. My program sends messages of various sizes, and the 0.1 KB…
Sean McCarthy
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How to Define Default Spotify Account for Google Home?

We have a number of smart speakers around the house connected to Google Home. We have multiple Spotify accounts running under their Premium Family Plan. One of our Spotify accounts is the "house" account that we set up for playing music around the…
BaronGrivet
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ESP32 proximity detection - how near, far and how accurate can it be?

I did some brief search on the matter, but it doesn't really help. I want to detect when people approach each other too closely, and - possibly, in the future - leave too great a distance between one another. the Ultimate BLE Presence…
Mawg
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Open source IoT framework similar to Azure IoT

Are there any open source IoT frameworks/runtimes similar to Azure IoT but without vendor lockin, software that will basically run on bare metal device and pull down and run containerized images from a registry and handle configuration/twin…
Element
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Can GPS device report to other device without internet?

I have device A which that device made by only GPS+CONTROLLER. Can that GPS report their location to device B which made by Controller or it will better report to internet without using GSM module or WiFi module? Is it possible? If possible what…
Muhammad Ikhwan Perwira
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GU5.3 WIFI RGB bulb compatible with smartthings?

I need some advice. I am searching for a GU5.3 RGB bulb compatible with SmartThings. On Amazon sometimes descriptions are confusing!
goplastic
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POE ethernet passthrough microcontroller

I'm looking for a build your own or mod hack something like a POE ethernet passthrough that powers an Arduino IoT controller. I understand that what ever I am using will need it's own dedicated IP stream but given how small some things have gotten I…
Robert Williams
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How to have a Nedis smart device to connect to WiFi network without app and registering?

I have a Nedis WIFIHTPL20FWT Smart conversion heater. It seems that I need to register to Nedis cloud service and only then using Nedis SmartLife App this device could be connected to my local WLAN. I have an IoT gateway and services of my own in…
pirho
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Cannot connect to softAP hosted on ESP32 IoT device on Windows 10

I have an IoT ESP32 device that needs to be configured through its softAP WiFi. When I enter the credentials of that network I get "cannot connect to network". I suspect that it's because softAP does not have a connection to the internet. How I can…
pixel
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Linking myQ garage door to IFTTT

I have managed to close my myQ garage door (a LiftMaster) (by Chamberlain Group) using IFTTT. Here's the setup myQ app on an iPhone IFTTT app on an iPhone myQ account subscribed to IFTTT the garage door, of course When setting up the IFTTT trigger…
Kit
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