Internet of Things Stack Exchange
Internet of Things Stack Exchange

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1500 questions
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Running Philips Hue Entertainment with 3rd-party lightbulbs?

I bought this innr light bulb for my Hue system and it works just fine except for the fact that it isn't compatible with Hue Entertainment. As it turns out, no 3rd-party light bulbs are supported by Hue Entertainment (yet). So I tried the…
fûX
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Spreading Factor of LoRa

I am new to LoRa technology and I was reading it's technical specifications on the lora-alliance.org website. In the document, the SF is always considered between 7-12. What is the reason behind not considering the values beyond this range, for say…
Shubham Kumar
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Android things create Wi-Fi access point to configure device

I need to send Wi-Fi credentials to my Android Things headless device via a mobile app. As it is right now, the device advertises on Bluetooth, the mobile app connects to device and sends Wi-Fi credentials to it. The device then stops advertising…
Anthony Raimondo
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What are affordable solutions to air quality monitoring system?

I would like to measure the air quality related to road traffic in a city for an IoT application. The European Environmental Agency has defined quality indicators (good, bad, etc) according to the concentration of some gases in the air such as CO,…
Francesco Boi
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How do I disable phone ringing from my Tile?

When a Tile tracker is paired with a phone, double tapping a button on the Tile will make the phone ring. This happens even if the phone is on silent mode. I’ve accidentally rung my iPhone at work multiple times, disturbing the people around me. I…
Stevoisiak
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Hue Dimmer Switch frequently "ignored" by the light

I've got multiple Hue White bulbs, multiple Dimmer switches and a second generation Hue hub. Sometimes, pressing a dimmer button doesn't result in the bulb reacting in any way. Sometimes I have to press multiple times to switch the light on or off.…
texnic
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Fluorescent Tubes - Sonoff Switch?

Like many, I'm looking for a way to control the fluorescent tube in my kitchen. Is there any reason why I can't wire a Sonoff switch inside the fluorescent tube lighting batten? I don't have enough electrical knowledge to know if this is a…
Mutantstargoat
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Is a range of 50 km+ possible in LoRa?

I read this article which said I could get upto 50 km with a LoRa module. But when I read the product description it says the in-built range is only 16 km, so I obviously need an antenna. But what kind of antenna can I use that can get my 16 km LoRa…
user5399
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How can I determine TV 'white space' frequencies for use with Weightless-W?

Weightless-W promotes itself as a "low power wide area (LPWAN) star network architecture operating in TV white space spectrum", and seems to suggest that this method of transmission has several favourable characteristics: At the terminal level data…
Aurora0001
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How to decrease AWS IoT button press delay before message publishing?

I am using two AWS IoT buttons to increment a scoreboard. The system works, but there is about a 5 second delay from the button being pressed to until the message from the button is actually published to AWS, which makes the scoreboard less…
DanHam
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When is Z-Wave S2 Security Mandatory?

When Z-Wave had security problems last year, I was pleased to see it announced that S2 Security would be mandatory for all new certifications as of April and that they didn't back off at that time. So I figured now would the time to pick up some…
Bill McGonigle
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How to connect Loop Energy Saver to Landis Gyr gas meter?

I've ordered Loop Energy Saver to monitor my energy efficiency at home, both devices for electricity and gas, however I'm having trouble with installation of my gas kit since my gas meter is different as demonstrated on the installation video. Is it…
kenorb
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Smart deadbolt without motor -- Read-only Access

I have some needs I'd like to ask my Google Home if my front door is locked. I don't want my Google Home to be able to unlock my front door. I don't even want my front door to be unlockable remotely. IoT and unlocking my door should not mix. Does…
Sidney
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How can I do incremental updates with a flash that can only be erased block-wise?

Scenario I want to update a low cost IoT device over-the-air with new firmware updating the device's microcontroller(s). The microcontroller memory is flash memory in the 32k to 128k range (every cent counts). This cheap memory has one major…
Helmar
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Non-IP device Communication Protocols

I have a question about Non-IP device communication. From my research, I learnt CoAP and DDS can be used for Device-to-Device communication. MQTT is useful for Device-to-Gateway or Device-to-Service or Cloud. My question is, how can a non-IP device…
Creed
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