Internet of Things Stack Exchange
Internet of Things Stack Exchange

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1500 questions
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Can LoRa end points communicate directly?

Can LoRa end points communicate directly? Or is a gateway/network server always required?
Mawg says reinstate Monica
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What are the sensors available to measure liquid levels?

What is the best sensor which can be integrated with esp32 and can be used to measure liquid level in a tank. I used HCSR04 and JSN but both of them were not good. Are there any other recommendations other than these? I wanted to measure waterlevels…
a-c-sreedhar-reddy
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Smart Lock | Exterior Use

I have what may be a crazy idea, which was inspired after both my neighbours had deliveries of online purchases swiped off their porch...not cool. I want to build a box for couriers to put stuff in, and I want to put a lock on it. I have read about…
J Crosby
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AWS lambda capture IoT thing creation event

I need to perform some additional operation when new thing created in AWS IOT , to accomplish this requirement needed to trigger a Lambda function upon new thing creation event. I followed AWS lambda capture IoT registry event, but not able to…
Anbarasan Subramaniyan
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Is it possible to implement the HomeKit Accessory Protocol directly on an Arduino or some other microcontroller without the need for a bridge

It seems that all solutions involving homekit make use of a bridge server, so I am confused as to why none of the setups that I can find are implementing homekit directly on the microcontroller. Is this even possible? Would some sort of special chip…
user10216
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What is the difference between IoT and a Smart Environment?

I have read through a number of papers with a focus on either Smart Environments or IoT. Another paper uses IoT and Smart Environments in the same context, almost interchangeably, which makes me believe they are one and the same, however this…
CybeX
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Industrial programmable radio transceiver

(I hope this kind of questions are tolerated here. Otherwise, please say it in the comment and I will delete the question) I have to create a wireless network of over 200 devices, placed in the same area. WiFi is not suitable here due to the…
Mark
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Intrusion alert system for rugged environments iot, sensors

We are developing an IoT based intrusion alert system for the agricultural field. The plan is to have vibration sensors installed over the fence on the periphery of agricultural land Required capabilities of system Detect any vibration over the…
Praveen Raghuvanshi
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How to set up the Timeslot API for AES-CCM peripheral use

I am using a nordic BLE SOC: nrf52 dk, along with s130 and sdk 14.2.0 I want to secure an advertised BLE packet with AES CCM encryption. The board contains a co-processor for AES calculation that is not accessible while using the soft device that I…
Abyr
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BLE advertising packet formation using nordic stack

I am working on A BLE beacon application to advertise data. I am using nordic nrf52 Development kit and nordic sdk s132. I am starting from the beacon exapmle provided by nordic. My question is how is the packet format of the message generated by…
Abyr
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Manually initiate time sync in PainlessMesh

I'm using Expressif ESP32 dev boards and the PainlessMesh library. My nodes do an initial time sync, but after a while I've seen odd behavior where the calculated offset is negative... implying that the message came from the future. I see in the…
Michael McMillan
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Is Google home an IoT Device or a WSN base station?

They say Google home is an IoT device but it has the ability to control other devices like lights, Air conditioners, etc. (in smart homes) which is more like a base station in the Wireless sensor network. Or is Google home an integration of both the…
Sumanth
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Error occurred in installing ThingsBoard Raspberry Pi

I am installing ThingsBoard on Raspberry Pi by following this guide. It gave me an error when I tend run installation script in second last step: Run installation script: sudo /usr/share/thingsboard/bin/install/install.sh --loadDemo Error creating…
Al Fahad
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LwM2M read flow

I have been reading about lwm2m and have a confusion of reading data from the device. So far I learned two different way of reading the telemetry data from lwm2m device. Read triggered from the lwm2m server Observe request from the lwm2m server As…
Olgun Kaya
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CRC-24 calculation method validation

I am working on a BLE Beacon application and to generate the packet to be advertised I need to calculate a 24-bits CRC value out of the BLE header, source access and the payload. In the official specification of Bluetooth I found the following…
Abyr
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