All Questions

1
vote
0answers
4 views

LoRaWAN remote sensor node platform

Which platform can you recommend for a LoRa/LoRaWAN remote sensor node, which fulfills the following criteria? Detects presence of people in 15-minute interval (e.g. with a RCWL-0516) Reports the ...
1
vote
0answers
8 views

Dash Button indicator Light

I have some Amazon Dash buttons that I want to use for multiple different scenarios, I don't know quite what yet, but I am unable to find a good way to make the indicator light turn green after I have ...
1
vote
0answers
18 views

How do I send 7Ultrasonic HC-SR04 data from a LoRa node to a LoRa gateway using Arduino?

I am a Master student and in my project I have to collect data from different types of sensors and send it to the cloud, I have done this with the DH11 sensor using existing examples and it worked ...
1
vote
0answers
13 views

IoT Light Power Consumption

I have a esp8266 which consumes around ~70 mA when active. I am controlling a light connected to it. The deep-sleep can't be used here as the light has to be responsive to on/off signals. What is ...
6
votes
3answers
37 views

Alternatives to MQTT for local / remote bridging

Amongst the plethora of MQTT questions, I am wondering what are some alternatives to MQTT for when all messages sent to a topic need to be kept, and in a queue for a new subscriber. At my company, we ...
2
votes
1answer
18 views

Are underlying commands language-agnostic between smart speakers and IoT devices?

I'm an American who lives in Japan. I can speak Japanese reasonably well, but I normally keep my Google Home speakers and Google Assistant app set to U.S. English for ease of use. Now I'm thinking of ...
3
votes
1answer
32 views

Quick questions about MQTT of a beginner

I'm new to MQTT so I'll try to explain my situation first and then ask some questions about MQTT. Basically what I'm trying to do is set up some sensors in two houses, A and B, and be able to manage ...
1
vote
1answer
22 views

Can portable routers be connected to power supply for months without damaging their batterry?

I am looking for a solution to provide internet connectivity to my iot device through a router which would not be affected by power failures (of no more than 3 hours). The options that I can see are ...
-1
votes
0answers
18 views

How to fix black screen issue in kodi [on hold]

I tried the steps to install Kodi and setup as per the article http://www.thetips4you.com/install-kodi-turn-your-raspberry-pi-into-a-home-media-center-using-xbmc/ However I end up in black screen. ...
3
votes
2answers
35 views

How to send data collected by two different sensors simultaneously?

I have two different sensors connected to my Raspberry pi and I have to send the data to other device. The transmission of data is through wireless network. I have been asked to send the data in ...
4
votes
0answers
24 views

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/...
2
votes
1answer
15 views

Will google home mini work in foreign country (not supported)?

If I buy a google home in US and give it to a friend in Ethiopia, will it work if he speaks English to it or will the Ethiopian IP address cause an issue with the functionality of the google home ...
1
vote
1answer
22 views

How do I set an IFTTT event to fire at specific week days at 7:40?

The standard IFTTT applet for time only allows me to set events every quarter hour. How do I set an event to trigger at 7:40 on Tuesday and Thursday?
0
votes
1answer
15 views

Arduino IDE friendly Ethernet development board with ADC?

As my introduction into an IoT project, I thought I'd build a simple home communication system for my family. It has been a very entertaining and eye-opening experience so far. My original plan was ...
3
votes
3answers
82 views

How can I set the clock of my smart watch using my Windows 10 computer?

I bought a smart watch (MS1020). I would like to set the date and time but I do not have a smartphone or an android device on which to install the associated app (Yoho Sport). Is there a way to set ...
2
votes
1answer
32 views

What's the formal name of this network configuration?

I'm researching a network inside another that can't access the internet but can be accessed by the internet. I've seen terms like cascading and heard something like a "v" configuration but neither ...
-1
votes
0answers
27 views

Alexa controlled smart plug that works on LOW VOLTAGE [closed]

I've recently been messing about with my Alexa smart speaker and smart plugs (TP Link) but I'd now like to take it a step further and use this functionality to control my garden lights. Does anyone ...
2
votes
1answer
45 views

How do I store data on iot device with only occasional access to the internet?

We are in the planning phase for a telemetry iot device with only occasional access to the internet. I found a lot of information online on how to store iot data in the cloud, what databases to use, ...
4
votes
1answer
89 views

Medical data IoT communication protocol?

We are considering connecting a medical device into a hospital patient system we are developing. We are based in the EU and must adhere to the EU Regulation on the protection of personal data ...
2
votes
2answers
24 views

LPWAN technology for remote environmental monitoring

What would be the most appropriate LPWAN technologies for environmental monitoring in a remote area, given the following: The monitoring system would be made up of 3 to 10 nodes located within a ...
2
votes
0answers
36 views

Simple NAT implementation on ESP32

I have an ESP32 wroom32 that has WiFi internally and an ethernet port. I want to be able to connect my phone to the WiFi and access a webserver running on the ethernet port. Schematically this looks ...
4
votes
2answers
53 views

Building a special effects rig

I'm not sure if this is the best place to ask but I will give it a try. I build mechanisms that are used in commercials, tv shows, window displays, multimedia art etc. They generally involve ...
4
votes
2answers
55 views

Raspberry Pi emulate phone Bluetooth stack

I'd like to use my Raspberry Pi to emulate phone Bluetooth stack. I'd like to get it paired with car radio, simulate arriving/outgoing call, simulate SMS and the more alerts/notifications I can manage....
3
votes
1answer
49 views

Smart gate - where to start?

I have this idea of writing an app/something to make the gate, that we have in front of our house, smart. But I just don't know where to start. I assume that the gate uses IR because we have remotes ...
2
votes
0answers
29 views

LPWAN technologies and Dash7

I need to transfer messages from node to gateway that would be at most 2km apart. I am currently working with 40 nodes that wake up every 1 minute. So I would like to have battery life of at least 3-...
2
votes
1answer
76 views

How does the MQTT server output a single raw file from multiple client publications?

I'm trying my first IoT project whereby I want to: have an electret microphone capture audio have an ESP8266 NodeMCU 12-E board submit captured audio to a remote server have a remote server receive ...
1
vote
0answers
13 views

Xamarin.Forms to ESP8266 Wifi moduleConnection [closed]

Am build new application for ESP8266. Then how can i connect my xamarin.forms application to esp8266 any reference and documentation for this. Already referred WIFIManager library in android many of ...
1
vote
0answers
27 views

Development board for DASH7

Has anyone experimented with DASH7? I am searching for a development board, which is proven to work with the DASH7 stack in the 433/868 MHz bands. There are, of course, the official development kits, ...
1
vote
0answers
12 views

How to make Google Assistant to read information from a file

How to make Google Home Assistant to read information from a file? With one voice command I need GH to respond with a specific information from a file. When "Hey Google, what are the consumption for ...
1
vote
0answers
34 views

LLN and RPL Simulator?

I'm working on a project which is about designing an IDS for RPL Protocol. In this project I have to simulate different types of attacks (e.g. Black hole Attack) and RPL Protocol. I saw on the ...
1
vote
1answer
34 views

Does mqtt have late delivery feature if no client is subscribed?

Can Mqtt broker forward messages which have not been sent to any client ?
3
votes
1answer
29 views

Echo Dot - Can you ask Alexa to remind you of your favorite TV shows?

I’m able to find TV skills for Alexa, but none of them (that I can see) will check the schedule and remind you of your favorite TV shows. I know I can set a reminder for them, but if the show time ...
2
votes
1answer
43 views

Which one is the fake? Samsung SmartThings motion detectors

I bought these at different times, but thought I was getting the same thing. Which one is the fake? And if neither is a fake, which one is newer and/or better? The first one uses a CR2477 battery, ...
2
votes
1answer
26 views

How to create a “TV off” activity for Harmony Hub?

I have a TCL TV that works fine with the Harmony Hub; it can turn the TV on or off reliably regardless of if it is already on or off (I don’t have the “toggle” issue some folks have). The Harmony ...
1
vote
1answer
30 views

Alternative way of developing own Hardware [closed]

Developing your own hardware is expensive. Our company has few requirements for our hardware. Cellular communication, GPS transmission and capturing acceleration. Since we need only max to 1,000-5,...
3
votes
1answer
48 views

Are Over-the-Air Updates possible with NB-IoT

I'm trying make an IoT device which I want be a highly power saving one & want it to work in a remote static environment. So I plan to make a circuit with a "SARA" NB IoT module. Now I want to ...
2
votes
1answer
33 views

How would I make a wifi alarm clock? [closed]

I was just wondering how I would create a completely custom wifi alarm clock, what are the things I would need in terms of IoT? I would want to control it via a custom built ios app. I am trying to ...
1
vote
0answers
41 views

How does Homeassistant MQTT publish via POST [duplicate]

I am currently using Home Assistant MQTT publish service from this the link below Link: https://developers.home-assistant.io/docs/en/external_api_rest.html The URL is: https:///api/services/mqtt/...
3
votes
0answers
27 views

What to do with in-wall switches for ZigBee setup

I'd like to install smart lighting in my home. I wish to use lights that can be dimmed, but I would also like to control the color temperature of some lights, and perhaps even some RGB lights or light ...
1
vote
1answer
33 views

ESP WROOM32- 8 channel relay board confused for which are pins to be use for connect relay

I am new to ESP32, and I had do the same project with Arduino and it's working fine, now I am trying the same project to control 8 channel relays with an ESP32 Wroom 32, but I am not able to choose ...
6
votes
1answer
69 views

How does APN affect cellular connectivity?

We had recently deployed a few Cellular IoT devices on the field, using SIMs from a certain provider (Airtel India). They had provided us with an APN, but we chose not to program our device with the ...
2
votes
2answers
33 views

Non-internet-connected “smart” thermostat/thermometers

I am aware that there are many emerging standards and products all focused on making my internet-connected home accessible from anywhere. I am exclusively interested in a solution where there is no ...
2
votes
0answers
28 views

PTP time sync over PPP (on serial) connection [closed]

I am running 2 ARM devices: devA is connected to Ethernet network with all of its NICs devB has the LCD, buttons and all this things for user interfacing, but no NIC and no RTC battery Both ...
4
votes
0answers
49 views

Node red MQTT node cannot connect to Azure IoT Hub

I am aware that there is Azure IoT Hub palette in Node-red, which is specifically designed to interact with Azure IoT Hub. I tried that and it worked fine most of the time. However, due to an ...
2
votes
0answers
23 views

Amazon Echo in France but I want everything to be english speaking

I live in france. I have changed the language to English and the location to UK. I now have Alexa speaking English. However, I am having trouble getting echo to play BBC radio channels. Alexa cannot ...
1
vote
1answer
47 views

How Smart Home devices communication works

I have a big doubt that I'm not able to solve. Basically, I want to understand how the smart device that I have in my home communicate with their servers, or better, how their servers can call its ...
1
vote
0answers
20 views

Can Alexa determine a switch state?

I have a virtual switch set up through Hubitat that actually opens and closes my garage door. I can say "Alexa open Pete" and she will turn the virtual switch on which opens the garage door. Also I ...
3
votes
1answer
52 views

Will my Raspberry Pi home automation hub be able to do all that?

I am setting up a DIY home automation, and just planning how my solution will look. I will have a Raspberry Pi 3 as the "hub" of the network It will run Node Red, MQTT (mosquitto), a DotNet website, ...
3
votes
3answers
69 views

DIY smart button to trigger phone app

I am planning on making a button that is when pressed sets an alarm on my phone. I am planning on making an app that is creating the actual alarm, the app just have to be triggered by the hardware ...
0
votes
1answer
72 views

POST messages in JSON to mosquitto MQTT not being received from node-RED mqtt node

Not sure how much better I can phrase it in the question but i'll try to explain to the best I can. What I am trying to do: Using IFTTT Webhook to POST a JSON message in MQTT Format. POST URL: ...

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