All Questions

Question: Does there exist a device installed in home infrastructure that can cause silent "vibrations" powerful enough to reach someone laying on a bed? The following is my best to ...

I want to build an IoT device that can be placed in public spaces and run off battery. They would not need to always be on, but a user could turn it on or wake it up from standby, then connect to it ...

I am trying to develop an windows form application on Visual Studio to control a home automation system. I am looking into the MQTT protocol to communicate between an application AMD hardware (using ...

I am preparing to conduct a research for IoT, collecting environmental data from different sources (temperature, humidity, light, air quality, GPS, etc...). What could the best set of tools or ...

I am trying to find out what IoT devices I shall use to enable an device(say a small toy car) to have a ability to follow a particular person. So far what I have found: QR Code, print out the QR code ...

I am working on designing a dynamic system that contains some edge devices lets say 100 for the moment out of which one device has to be the master, that has some different task. So I have searched a ...

Doing research on professional monitoring services (in the US), some/many services claim 3rd party devices can be connected to their service. But it's unclear to me what level of functionality from ...

Planning a one off party event that involves turning mains lights on/off and then playing media on a PC connected screen. It need not be very fast and doesn't need to use internet but wifi is ...

I have a micro-controller,ESP8266 for the moment, which is connecting to a mqtt broker and pulish some messages. I have configured mqtt broker on raspberry pi which has an IP address 192.168.43.164. ...

We are working with an OBD-II device that we have directly bought from the manufacturer and want to create a platform for it. 80K+ devices will be used per year. The OBD-II device collects car ...

I would like to use my alexa as a speaker for my (windows)pc. My pc doesnt have bluetooth and alexa is not directly connected to my pc. Since the alexa is connected to the same router (via wifi) as my ...

I am creating a storage system where I'd like to have triggers as: Ok Google, Add 5 blue papers to paper box Ok google, Find blue papers Ok google, take 2 blue papers Basically custom triggers ...

I'm still very new to IoT and IoT protocols, so pardon my ignorance. I'm trying to go about creating a home automation system to control lights, read room temperatures etc. The user should be able to ...

The device connects to IOT cloud fine and transmits the data for days and sometimes even weeks, but then it will stop transmitting for apparently no reason. On the IOT cloud dashboard the device is ...

this is my situation: I have a thermostat in my bathroom which is controlled by Alexa. Now I want to automate my ventilation. For this I want to use a ESP8266 NodeMCU with a humidity sensor and a ...

I am currently attempting to design a small custom PCB based IoT business cards that communicate over a cellular network for the purpose of impressing employers. Since I will literally be giving these ...

I'm on a project where I'll use a BLE chip and I saw I can craft a custom bootloader. I don't think I'll need to make a custom one because it's just going to be a bridge to other chips (but aren't all ...

I'm configuring a rpi3 with Ubuntu Core Appliance OpenHAB (version 3.1 is the latest version of OH). When I connect my usb adapter for z-wave (z-stick gen5), Ubuntu recognise the USB and serial line ...

I tried to access this website http://www.oaic.dz:9001/forms/frmservlet many times, but it denied me accessing (only white page) as it shows in the attached file (screenshot) I tried installing Java, ...

Edit TL;DR Is there an existing web API to control my D-Link cloud camera instead of using the mydlink Android app? I've check the D-Link forums and they're not very helpful... By control I'd like at ...

I'm running an MQTT Broker on my Windows machine using Mosquitto broker. I have setup a client on the same Windows machine through the Paho MQTT python library. Another client is setup using the same ...

While I appreciate that this sort of question will be outdated by next year... As of 2021, what are the current market leading LoRa modules for use within 3rd party designs. I mean off the shelf ...

I'm doing a research on DDOS protections in MQTT brokers and I started with open source Mosquitto broker. I couldn't find any countermeasure listed in the documentation page. Since my C language ...

Problem: I have an Airbnb type resort that I'm trying to upgrade. Whoever designed the lighting clearly wanted as much customizability as possible. Instead of having a single switch controlling all ...

My Home Assistant (RPi4) keeps crashing. I'm not sure why, but I need to keep it running. My first plan was to task another computer on the network (I have many...) to ping the HA RPi4 every minute ...

Preface: I’d like to clarify that I understand what a relay is and that a PLC uses a fairly conventional microprocessor that only digitally establishes logical logic gate configuration as a digitally ...

I have two RaspberryPis, one with the mosquito broker, and one acting as a client. The client has set up a LWT with the broker. After a power outage that affects both RPis, both RPis come back online, ...

According to Wikipedia, A botnet is a logical collection of Internet-connected devices such as computers, smartphones or Internet of things (IoT) devices whose security have been breached and control ...

I’ve read about a few firewalls that plug in between the modem and router and sort the packets and data but that doesn’t seem like a firewall to me I’m looking something under $500 (even a DIY would ...

I would like to measure temperatures using a LoRa device and establish a point-to-point connection with another LoRa compatible device. However, the only appropriate temperature sensors use LoRaWAN, ...

I would like to create a point-to-point connection between a LoRa temperature sensor and a M5 Stack (ESP32) with LoRa module. However, I am a beginner with LoRa, so I have a few questions: Are all ...

I am developing some bespoke software which will send updates to a WebHook monitored by IFTTT, so I can receive notifications. I would ideally like to be notified on my phone and on my Mac/PC with a ...

I am trying to get a IOT device to communicate using GSM GPRS. Forgive me if I doing something that is blinding obviously not going to work here. The device is a weather station https://www.makerfabs....

I would like to control a relay from over the internet. I was thinking of making this using an Arduino and some wifi/ethernet shield. Searching the internet, I see a lot of shields and modules that ...

I have been trying to connect my ESP32 board to my laptop via MQTT. I have installed Mosquitto MQTT broker on my laptop but I fail to connect my ESP32 every time. This is the test code I am using to ...

I am building a system where I would like to send an encrypted message from AWS Lambda (via an AWS IoT Core rule) to a device. Ideally I would like to encrypt this message using the device's public ...

I'm stumped on this one - everything appears to be correctly configured and working properly...except that HomeAssistant can't discover any ZigBee devices. Adding the ConBee II appears to work just ...

I am starting to learn how Drone communication works and I think it would be best to buy one where I can use the Dronekit library. I've been searching the internet for drones that are compatible with ...

A couple of months ago I designed a board with an ESP32-WROOM-32D (M113DH3200PS3Q0). Now on the Espressif product selector page they say it's not recommended for new designs! Questions: What is the ...

I want to Monitor/report 5 water flow meter. My current flow meters give pulse signals. Details Small data deviations, connection failures is not an issue for me What's the simple, cheapest, up-to-...

I use Adafruit_CircuitPython_PN532 to read the card id with a PN532 on SPI. After booting my pi my script doesn't work. However, when I execute nfc-poll in a terminal everything works fine. My python ...

My end goal is for the TV to work with Google Home, but since its a Samsung smart tv I have to first setup with SmartThings. Unfortunately, the new ST app doesn't have any option for the KS9000 model; ...

I'm not very versed in WiFi technology and jargon, so please keep this simple. Suppose you have an item that you don't want to give access to your main WiFi network, for security reasons. Suppose ...

I have a WebCoRE piston that looks something like this. if Device temperature changes then do Send SMS notification "Test message" to 1234567890; do Wait 60 minutes; else end if;...

I want to use my PN532 as input device like a keyboard on my pc with windows 10. I have a PN210 USB to UART Bridge. Is there a way to use my PN532 on a x86/64 device?

I want to scan various writing materials such as card, cloth, various grades and qualities of paper, wood, even hemp-based or other writing surfaces. The reason is I wish to write a GPU-accelerated ...

In what scenario is it possible that collision happens between two packets. And if a collision happens, is it possible to demodulate? How? Regarding here it says there are two types of interference. ...

I can use mosquitto_sub to subscribe to broker for a specific topic, say test_topic, mosquitto_sub -h MOSQUITTO_BROKER_HOSTNAME -t test_topic I can also pipe grep for a specific keyword, say ...

I'm working with industrial machines, not always connected to the internet in industrial environment. I'm new in IoT and for my current setup, I have 2 usage: analytics and live data. For the ...

This is my first project involving IOT, or even very much internet protocol for that matter. THE SHORT: I have a few programs on my home computer that search for live stock price data continuously. I ...