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23 views

Not getting LWT MQTT Arduino

I'm trying to test a two combined examples: OTA and MQTT . My goal it to check a LastWill when disconnecting an ESP8266 devic. Surprisingly, a LWT is not sent to designated topic. code has not ...
1
vote
0answers
18 views

Read real time multiple sensor [on hold]

In case you have multiple sensors (temperature, pressure, etc) up to 20 in a system with different electrical interfaces. What is the best way to read values simultaneously (at exact the same time ...
2
votes
0answers
15 views

Teckin sp10 not showing up on Wi-Fi router’s “list of connected devices”

I was able to connect the SP10 Teckin outlet to my Wi-Fi network using smart life app. I am able to successfully control the outlet from the app. I opened the “list of connected devices” page on my ...
2
votes
2answers
30 views

MQTT - keepAlive using Arduino

I'm using MQTT broker for my IOT devicess, mostly ESP8266 ( some are NodeMCU, some Wemos mini, and some are Sonoff) , running an Arduino code, some time ( about a year ). MQTT broker is running on a ...
0
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0answers
21 views

How to make cheap plant monitoring system? [on hold]

I am trying to building cheap plant monitoring system. I am thinking of adding fingerprint scanner, because I want to ensure the plant's caretaker takes care of his plants by himself. (Please tell ...
-1
votes
0answers
21 views

Average power consumption sending packet data [on hold]

On average how much power consumption does sending 500 bytes an hr for 24 hours consume? Assuming the device has a 2000mAh battery typically 89.9mA @ 3.7V (continuous transmission)? I am interested in ...
1
vote
1answer
16 views

Pair two drivers with one remote control IKEA TRÅDFRI

I am going to buy two TRÅDFRI Drivers, one 10w and a another 30w. Is it possible to pair the drivers and use one remote control to dim them at the same without the gateway? Or does it work to pair the ...
-1
votes
0answers
44 views

How 5G could help IoT Infrastructure [on hold]

I am reading on google about the cooperation between 5G cell networks and IoT devices, but it is not clear to me how these 2 standards can cooperate??
0
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0answers
15 views

Why is access denied when using UWF on Windows 10 Embedded IoT? [duplicate]

I have a PC that uses Windows 10 Enterprise 64-bit and have had some help from an external company to convert it to a Windows Embedded machine. One thing I need to do on the PC is use UWF to check the ...
1
vote
1answer
11 views

How to change default shopping list app with google home

With Alexa I can change default shopping list and todo app by settings. I'm using AnyList with Alexa, so can I also use AnyList with Google home?
2
votes
0answers
20 views

Why is access denied when using the Unified Write Filter on Windows 10 IoT?

I'm using Windows 10 Enterprise IoT 64-bit and am trying to run the following command in the command prompt: uwfmgr.exe get-config The result is always "The command failed (Access is denied.)." ...
2
votes
0answers
4 views

Sonoff switches on Google Home - Cascade Router configuration?

I had my Sonoff switches working fine on my rental FTTH modem then I bought Google Nest Wifi. Only my kitchen lights connect to the "blended" wifi, the rest of them won't show up on Google home (same ...
0
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0answers
29 views

How can people use the app find my phone if you only have one phone? [closed]

How can people use the app find my phone if you only have one phone and live in a country tiwn where smartphones arent common? Im not sure what stack exchange to post this on so if you know any ...
1
vote
3answers
48 views

Is barcode scanning with an ESP32 possible?

Is barcode scanning with an ESP32 possible? Is there an existing project, of a library that I could use? Any idea how to go about it? If not feasible, would it make sense to stream video from the ...
2
votes
0answers
27 views

In what form should I store data in the cloud for a single device?

This question looks similar to What IoT services are available for storing/sending/publishing generic data in the cloud? though I haven't found a suitable answer yet. I'm building a light/temp/...
0
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0answers
25 views

Why MCU can connect to WiFi network and computers cannot?

I was testing a system based on some devices connected to a WiFi network. There are 3 devices that make part of the system: A raspberry Pi, an ESP32 and a laptop PC. The raspi acts as a Apache server ...
1
vote
1answer
38 views

Smart band for generating custom vibrations

I am looking for a low-cost smart band (should be available in India) which can be controlled from Linux machine and or Android app to generate custom vibrations. UPDATE I see that there are many ...
0
votes
1answer
49 views

How can I build a network of 5 smartphones that log accelerometer data into a computer?

I would like to build a network consisting of 5 smartphones (preferably Android, if it makes any difference) that log synchronized accelerometer data into a computer (like a data-logger). How can I ...
3
votes
0answers
32 views

Using RPC in IoT environments

I would like to use RPC for communication between fog nodes. As the connection between the nodes is wireless (802.15.4), I don't want to use an RPC framework that uses HTTP (like gRPC). I know that ...
2
votes
0answers
14 views

CSR8675 programming and build

I've bought myself a simple CSR8675 board with USB-SPI programmer, without any software included. I've succesfully managed to read and edit some settings using PSTool, but what i really need is to set ...
3
votes
1answer
64 views

How to control multiple ESP-01 with an app? [closed]

I've been working on a school project that consists into making a smart light socket. I want to make an app which will allow the user to control many of them, like switching on and off, controlling ...
1
vote
0answers
26 views

IoT solutions, black box vs white box [closed]

I am having the following discussion with my colleagues and wanted to get some other people's opinions on this. We (a major global company) are currently working with several kinds of presence/people ...
3
votes
1answer
38 views

get trigger from IFTTT - using ESP8266

I'm using a Wemos mini, to switch on the light. I'm trying to figure out how to combine IFTTT and Sunset and Sunrise from Weather underground to trigger the lights ON. All examples I find, is how ...
3
votes
1answer
41 views

Bluetooth Direction Finding - do I understand it correctly?

I just read Bluetooth Direction Finding, added to the Bluetooth spec as part of Bluetooth 5.1 to allow devices to measure angle of arrival and angle of departure (AoA and AoD) to position devices ...
0
votes
0answers
16 views

ESP-WROVER-KIT-VB - seeking code example to write to display

Does anyone have a simple "hello world" example of writing text to the display of a ESP-WROVER-KIT-VB ? My search skills are failing me today.
1
vote
1answer
37 views

how to network a receiver to a public server

My company use sensors on doors to track activity and access control on the doors for many sites throughout the UK. We need to log this activity by sending UDP packets from the sensor's receiver to ...
2
votes
1answer
52 views

Difference between edge server and mqtt broker

As I am new to the IoT world, I would like to ask for a clarification. I was reading somewhere about the general idea of having devices communicating with each other or storing information in a ...
0
votes
1answer
66 views

A PhD researcher looking for guidance on IoT software development [closed]

I am a PhD researcher working on power systems of the future. My work focuses on energy management of distributed energy resources and providing services to the grid. Data acquisition and calculations ...
2
votes
1answer
22 views

LoPy4 Gateway (LoRa RAW) connection to Raspberry Pi and AWS Cloud

I am attempting the following setup: Sensor--> I2C--> Pycom LoPy4(Node)-->LoRa-RAW-->Pycom LoPy4(Nano Gateway)-->RPi-->AWS I have established the LoRa RAW connection between the two LoPy4s, now I ...
1
vote
2answers
33 views

Switch on, Fade off LIFX

Is it possible to create an IFTTT widget which can turn on a LIFX light and fade it off over a specific time? I had thought configuring a button to turn the light on then set a fade duration using ...
-2
votes
2answers
67 views

Can I use Arduino shields with ESP32?

Does any one know - can I use Arduino shields with ESP32?
1
vote
1answer
14 views

Homeassistant Timezone Sync

My raspi knows when EDT (Eastern US Daylight Time) is active, HypriotOS/armv7: pirate@black-pearl in ~ $ date Thu Oct 17 10:27:27 EDT 2019 the docker container for homeassistant knows when EDT is ...
2
votes
0answers
26 views

How can I play play custom MP3 file in echo show 5/ Alexa device?

I have ECHO show 5 device at my home. I have a mp3 file on my smartphone which I want to play on my voice command by amazon ECHO. I am ok to upload this file if echo can support it. How can I do this ...
1
vote
1answer
31 views

How to control an on/off switch with raspberry Pi 3(perhaps using Radio)

So I happen to know some python to turn lights on and off in rpi3. Also to automate my home I know how to use relay boards. But the problem is that I have one rpi3 and the light which I want to ...
1
vote
2answers
37 views

How to encrypt sensor data in low-power wireless communication like LoRa, BLE, …?

Wireless sensors communication have limitation in message size due to low power consumption. Assume that we have a heart rate sensor sending data via BLE, or a GPS data sending via LoRa to a receiver:...
2
votes
0answers
16 views

How can I make Alexa read my United Kingdom Audible books from an Echo device in India?

I have many audio books purchased in United Kingdoms Audible account. I can still hear them on my smartphone. I have recently moved to India and purchased amazon echo device. I do not have any books ...
1
vote
0answers
16 views

Receiving Data from MacBAT 5 in python

I need to be able to communicate with a PLUM-EVC, MacBat 5 from a remote server using Python. I have been given parameters, IP and Port which are required to get the data from EVC. I am completely ...
3
votes
0answers
32 views

Is there any solution to run any RTOS on windows/linux virtual machine?

I am writing firmware for different boards supporting FreeRTOS, Zephyr, ... My problem is when I am developing the firmware, I should run the firmware on the "real" device from the beginning and ...
1
vote
0answers
28 views

ESP8266 and MQTT not working with new router [closed]

Got a new router from the ISP and my ESP8266 NodeMCUs are causing problems, they need very long to connect to WiFi (3-4 mins), which wouldn't be that big of a problem, but they also don't connect to ...
1
vote
1answer
51 views

Speech recognition using esp8266

I'm working on a project where I have to send voice through mic to a Speech recognition API using esp8266 where the voice is get processed. Is there any possible way I could do this with esp8266? I ...
0
votes
1answer
26 views

How can you send location based push notifications to all android/ios devices that enter range of an IOT device

I would like to send a location based push notification to all devices that enter a range of some kind of IOT device. for example I would have a device which sends push notifications to any phone ...
0
votes
1answer
22 views

(how) can 802.15 access the internet?

Can I interface with my server's RESTful HTTPS API directly over 802.15? Or do I need a gateway? Any good overview/tutorial for 802.15 (not too in depth, just ot get an overview)?
0
votes
1answer
24 views

Can I compile Python on my PC, load it to an ESP32 and run it?

As a follow-up from Can I retrieve a Python program from an ESP32?, I would like to make things a little more difficult for those who would steal my code (I do realize that I cannot prevent it). Can ...
0
votes
0answers
11 views

How to give an Alexa device wifi credentials on the fly [duplicate]

I have created an alexa controlled smart switch using esp8266 and fauxmo library and it works fine .However I need to set the wifi credentials as well as device name within the code which is not ...
0
votes
1answer
28 views

Can I retrieve a Python program from an ESP32?

As per the title. If I have an ESP32 with some Python loaded, and have lost the source, can I retrieve it from the ESP32?
1
vote
0answers
12 views

Find the right architecture for dashboard analytic visualization [closed]

I have multiple sensors that are sending up to 10 data a day (temperature, battery, others data related to any event that could occur). In the future I may have hundreds, thousands of sensors that ...
3
votes
2answers
70 views

Is MQTT-SN still “new” or is it obsolete?

I have an existing IoT project based on MQTT and am looking at extending the application to include battery powered end nodes using Zigbee mesh. It logically seems the most appropriate way to do this ...
2
votes
2answers
46 views

Are nodes that are mobile in a IoT network more vulnerable to certain types of attacks?

I have my final year dissertation coming up and I'm thinking of doing a project where I evaluate attacks on an IoT network using Contiki/Cooja simulator. The project as it stands is too simple and has ...
1
vote
0answers
19 views

Debugging Python on the BBC micro:bit with Pycharm

I am following this guide which seems to be excllent, except for one litte problem: When I debug, a breakpoint which I set on the first line is nor reached and the script seems to hang. The debugger ...
5
votes
0answers
31 views

How to divide a number in an IFTTT action

I have got Monzo (a bank) and Strava (a fitness tracking app) setup in IFTTT. There is a pre-existing recipe that saves 1 pence per 10 kilometers when a new activity is created. I want to create a ...

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