Internet of Things Stack Exchange
Internet of Things Stack Exchange

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1500 questions
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How to increase the Lora range using a LoStik?

I know this is a common question but I am wondering how to increase range on my Lora 'LoStik' device. https://www.crowdsupply.com/ronoth/lostik I am trying to send data from one LoStik to another. Both are plugged into Raspberry Pis. Data packets…
Tuomas Talvitie
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Does the Google Home record conversations to target advertisements?

Google states that the Google Assistant (the personal assistant that runs on the Google Home, Pixel and the Allo app) uses 'conversation history' for targeted advertising: Does Google use my conversation history to personalize the ads I see? If you…
Aurora0001
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Is it a good option to send images over LoRa network?

LoRa (Long Range) technology is one of the promising technology which offers long range communication with low power consumption. Therefore when building a device that can be deployed in a no network area or to achieve long distance such as 5km or…
tim3in
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Why does the ARM architecture dominate the IoT market?

I would like to understand why we use ARM for routers, cell phones, cameras, refrigerators, smart TVs, and everything, instead of using any other architecture like x86. What are the advantages of using ARM for these things? What would be the…
BunnyGuy
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Which IoT platform to visualize real-time and historical sensor data?

In order to prepare some tutorials for my students, I am working on a few DIY electronics projects in the field of IoT. I want to use ESP32, ESP8266, Arduino Uno, and Raspberry Pi. I am more deep on firmware/hardware part and I have no experience on…
Mohammad Taherian
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5 answers

Which free dashboards are also MQTT brokers?

I'm trying to find a dashboard which: Has pretty widgets for data display Can subscribe to, and display MQTT data that I publish Can publish commands to subscribers (eg: "Driveway light switch: turn on") Is free for home / hobby…
Tom Hale
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What network technology can host 1000s of local IoT devices?

I'm analysing the technologies for an IoT device that would need to be installed in a commercial environment. The requirement is to install thousands (or maybe even tens of thousands) of small sensors/devices in a commercial setting, like a hotel,…
Alex
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How to detect desk occupancy in office

I'm working on a POC to try and find desk occupancy in an office. The aim is to identify which desk is occupied and how many are free and where are the free ones. Also I would like to identify who is sitting at what desk. What are the ways I could…
PNDev
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Sending data from remote locations

I am a member of the Ardingly Solar Team, a group of students designing and building a solar powered car to race in Australia in the world solar car challenge. I have designed a system that collects all data from the cars BMS and motor controllers…
Bibaswan Bhawal
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Send wirelessly very small amount of data

I need to transfer wirelessly a message of maximum 5 bytes of data (including everything such as start bits, stop bits etc etc). What I tried: Empty Ethernet package is at least 56 bytes according to this post Empty SMS PDU mode is bigger than 5…
Codrut
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Thingspeak: message limit, update limit and bulk updates

I am looking at ThingSpeak for logging sensor data. I would like to log three different variables at a frequency up one datapoint per second. This would be 86400 samples per day or 259200 values per day. The thingspeak "pricing" page says that on…
Mathias Schultz
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Set up Yeelight (Color) in both Yeelight an MiHome app

I have recently purchased a Xiaomi Gateway with body motion sensors for automating lights in my house. I already had a couple of Yeelight Led Bulb (YLDP02YL) set up with the Yeelight app, in which I had created different scenes (afternoon, night,…
makeMonday
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How to connect Google Home with a DIY home automation system?

I have a few devices which ultimately talk to an MQTT bus. This bus is monitored by my own program (in Python) which makes decisions based on the context ("scenarios"). I am considering to add a Google Home speaker to this (I do not own one yet) and…
WoJ
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Make ADT Door Sensors work with Ring security system?

Is there a way to modify ADT's Window and/or thin Door sensors in some way to work as door sensors for Ring's Home Security System? I am transitioning from an ADT security system to Ring's, but am not keen on buying Ring's door sensors for $20 each…
Graeme Rock
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How can I use End-to-end encryption in sensors network?

I have been reading about XMPP and its extensions. One of them called (XEP-xxxx: Sensor-Over-XMPP) which is really interesting. I have read also about another XMPP extension which is OMEMO protocol for End-to-end encryption. Is it possible to…
Nano
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