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1500 questions
3
votes
1 answer
How to import libraries with ESP-IDF for visual studio code?
What I am trying to do
I have an ESP32-CAM, and I want to use Visual Studio Code, I already used the Arduino IDE at first, and it worked fine.
To work with the ESP32 on VS Code I installed the extension from espressif, it seems to "work".
I created…
Gregory Boutte
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3
votes
2 answers
Iot datalake. Can you help me. Thanks
I collect data from iot sensors.
I get some byte datas, whose bits have some meanings.
I will use some bits for anlytics finally.
So the following is my question.
Should I convert these bits used for analytcis to new fields, and save in another S3…
user16974
- 31
- 1
3
votes
1 answer
Real-time web-app for IOT devices
Goal
I'm currently building a web application to control multiple IOT devices over the cellular network. Given the nature of the devices (working off battery power and operating in constrained network environments) I have chosen HiveMQ as the means…
Edmond.D
- 31
- 1
3
votes
1 answer
Digital door lock standard protocol
What's the standard protocol used by digital door locks that are managed through Bluetooth devices? Like Android and iOS devices.
While digital locks and Epic works with Android app like KeyWe little is known as to how both communicate through…
quarks
- 131
- 2
3
votes
2 answers
How to make Sengled Zigbee bulbs more reliable
Background
I have a bunch of Sengled Zigbee bulbs that I use in plug-in lamps, with a Samsung SmartThings hub controlling them.
The ones that are in the same room as the hub work 99% of the time, but the ones that are further away frequently display…
dwally89
- 31
- 1
3
votes
2 answers
How secure connection between modem and microchip
My board has a separate Quectel MC66 modem and STM32 microchip. The communication between modem and microchip is AT Commands.
If a hacker connected a wire between modem and microchip, he could have access to transferred data between these two…
behroozbc
- 153
- 9
3
votes
1 answer
How to simulate an IoT device or a network of IoT devices without hardware?
Hey IoT stack community!
I want to ask how I can simulate an IoT device or a network of IoT devices, if I don't have a single piece of hardware? Is this possible in any way at all?
To give you some context, for the sake of a project I want to…
Muhammad Yasir
- 171
- 3
3
votes
0 answers
Can IoT devices share their own capability/resources with another device?
Hello IoT Stack community !
I am sort of a beginner at IoT and looking for some guidance and help
I am struggling to wrap my head around the following concept;
Is it possible for IoT Device to share it's own resource (like e.g
temp sensing or…
Muhammad Yasir
- 171
- 3
3
votes
4 answers
Can't connect to Mosquitto broker with local IP address
I have a Mosquitto broker running on my Windows machine. I can connect to this on the same machine using an MQTT client such as MQTTX when I specify localhost as the address.
However, I want other devices on my local network to be able to connect…
Engineer999
- 191
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3
votes
1 answer
What are the datarate and ADR best practices for moving objects
For static objects, LoRaWAN has a very neat 'Adaptive Datarate (ADR)' feature that is key to the scalability of the protocol, it allows the network server to select the fastest uplink datarate compatible with target packet error rate (to conserve…
Olivier HERSENT
- 423
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- 5
3
votes
1 answer
Samsung SmartThings washer and dryer unable to connect to the app
For the past few weeks I've been unable to use my Samsung SmartThings washer and dryer via the app. I use the notification feature to keep track of completed loads and sometimes use the app to start the machines or delay their runs.
Ever since I…
kettlepot
- 151
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- 5
3
votes
3 answers
The impact of LoRaWAN repeated transmissions
The LoRaWAN spec defines the LinkADRReq MAC command with a field (NbTrans) specifying the number of requested repeated transmissions of every frame. Actility claims that their ADRv3 algorythm uses that field to improve the packet error rate by…
Norbert Herbert
- 802
- 3
- 11
3
votes
1 answer
LoRaWAN end-to-end security with Over The Air Activation
We are planning to connect several thousands of door opening and other home security sensors to a public LoRaWAN network country-wide, but our concern is, that in theory our public LoRaWAN network provider can decode the devices' messages. We may…
Norbert Herbert
- 802
- 3
- 11
3
votes
1 answer
Firmware update over a LoRaWAN network
We are planning to connect several thousands of LoRaWAN connected water meters. The expected battery life time is 8+ years. Our concern is that meter suppliers are releasing new firmware version including bug fixes quite often (~ in every 6 month)…
Norbert Herbert
- 802
- 3
- 11
3
votes
0 answers
What commands should I send to Tasmota (DHT11) via MQTT Broker to receive status as message in my NodeJS script?
I cannot find how to send command to my Tasmota DHT11 device via MQTT Broker.
I'm using mqtt.js library in Nodejs.
var mqtt = require('mqtt');
var topic = 'cmnd/tasmota_E30D62/';
var client =…
Henri
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