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10 views

Allowed RF frequencies in UK using RFM69

I am thinking of buying an RFM69HCW FSK module from Adafruit. However I am confused as to which module to buy, the 433 MHz or the 900MHz version. Are both allowed in the UK? If they are then why do ...
0
votes
0answers
13 views

Control what actions are available for a device in Home Assistant

How can I control what actions are available for a device in Home Assistant? I need activate the "brightness_move" action, but it does not seem to be available. The device is a Nordtronic ...
0
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0answers
15 views

Send custom commands with zigbee2mqtt

Is it possible to send custom commands with zigbee2mqtt? I have found that I can send commands with Mosquitto, but they don't seem to be transferred directly. I am trying to send the commands to a ...
-2
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0answers
24 views

Can we broadcast custom application data using ultra wideband technology? [closed]

Can we broadcast custom application data using ultra wideband technology? I have UWB Ultra wideband integrated in my multiple iPhones using which I want to send/receive custom data (very low amount, ...
0
votes
1answer
64 views

Determine state before publish

I have a mosquitto MQTT broker on a Raspberry Pi. I have some topics from a client in this format SolutionCommand/state as an array 110001. In other hand I can invoke some publish topics like ...
2
votes
1answer
38 views

Certificate Management for IOT devices

What is the best practice for certificate management on an IOT device (bare metal microcontroller with GSM modem that communicates to a secured MQTT broker)? Looking at Let's Encrypt certbot, they ...
0
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0answers
19 views

Why multiple ESP32 custom PCB on the same RS485 bus are mutually exclusive?

I have a 12V LiFP battery BMS (battery management system) connected via a RS485 RTU. I also designed box (a custom PCB which embed a ESP32 as the main CPU) that report the battery SoC (State of charge)...
1
vote
1answer
50 views

How to use the onboard LED on the ESP32-C3-DevKitC2

I just bought an ESP32-C3-DevKitC2 from Espressif, which features an onboard color LED. I'm a bit of a newbie in this space, so I thought I'd start by trying to get a simple "blink" ...
0
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0answers
17 views

Which smart bulbs support configurable power on bahaviour?

I just learned that Philips Hue now supports configurable power on behavior. The user can choose between off, on at default values or the last known setting. This sounds very good because my wife is ...
1
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0answers
29 views

IFTTT filter code to skip action if switchbot activated within last hour

So what I am trying to do is implement some filter code in an IFTTT applet that will skip the action if it was already performed within the last hour. It's for triggering my heating which is a dumb ...
3
votes
2answers
62 views

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 ...
1
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0answers
22 views

How to control homework writting machine with IOT

It consists of (CNCsheild, Arduino UNO, 2-stepper motors and servo motor), It works with GRBL Plotter and Inkscape. I am new at learning IOT. I want to know what is the needed components and software ...
1
vote
2answers
25 views

How to automatically dim the bathroom light at night with Home Assistant

I have a Nordtronic dimmer installed in the bathroom. It is connected to Home assistant via Zigbee, but it is also connected to the physical light switch. Is it possible to set this up, such that if I ...
0
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0answers
16 views

What is the difference between a GATT Unit and a GATT Characteristic?

I am setting up an Arduino to collect temperature and pressure data, and I want to broadcast that data via bluetooth. My question boils down to what allocated UUID is best for my characteristic, and I ...
1
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0answers
11 views

HomeKit + KNX / industry standard bridge

I am relatively new to home automation and was wondering what would be the industry standard bridge to make KNX homes work with HomeKit. I am primarily interested in understanding features, cost ...
1
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0answers
25 views

Open, Write and read RS232 port Android Studio

I have to do a project with an industrial android screen that consists among other things to open, write and read a serial port. I clarify that my device has rs232 ports (I think that the classic ...
1
vote
0answers
26 views

Can a server/client pair be formed using TCP, IPv6 and 6LoWPAN

This question is asked to eventually allow developing a device driver that will take as input IPv6 data that has had 6LoWPAN header compression and data segmentation done on it. To help me understand ...
0
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0answers
24 views

shodan multiple ports search

Can you tell me how can I search for devices wich have 2 or more specific ports open simultaneously because I'm only being able to search one at a time?
2
votes
1answer
39 views

ESP32 or ESP8266 220v button as input

As per title I'm, looking a way to detect the press of a button powered at 220v ac through a gpio pin of the ESP32. The simplest solution found seems to be an octocoupler, but are there devices that ...
0
votes
1answer
49 views

Named URLs on Local Network

How can I access my IoT peripheral device (raspberry pi B3+) on my local network in a reliable way? I want to use WiFi not BLE. I want to protect against the device getting a different IP when it is ...
0
votes
1answer
48 views

I’m puzzled: Why can I control my Nedis Wi-Fi Smartplug even from a different city?

I bought a set of Nedis SmartLife Wi-Fi electric sockets. I connected them to my home Wi-Fi network and installed the control app on my phone. To my great surprise I can turn the plugs on even from ...
2
votes
1answer
58 views

Does iPhone 11 device contain multiple UWB receivers?

Does iPhone 11 device contain multiple UWB receivers? Angle of Arrival (AoA) is often required for many applications for UWB enabled devices. I wonder if modern UWB enabled devices i.e. iPhone 11 ...
1
vote
2answers
48 views

HTTP/Wi-Fi controlled AC plug socket

I am looking for an AC plug/socket, ideally Israel/EU standard, that can be controlled by http. I have an Arduino with enet connected to my WiFi router that will be in charge of controlling the socket....
0
votes
2answers
67 views

How to detect the relative direction of two mobile devices?

How to detect the relative direction of two mobile devices? When a mobile device (i.e. a modern smartphone) is taken near to a second mobile device, it is possible to detect inter-device proximity ...
2
votes
1answer
51 views

How to connect several sensor boxes (ESP32) via WIFI/webserver/...?

I'm intending to create some (like 5-10) boxes with sensors and/or relays inside using ESP32's. For connection to a laptop and mobile phone I found a tutorial at ESP32 WebSocket Server: Control ...
0
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0answers
28 views

What on-demand RTSP player/client software is available/good

I'm trying to come up with a system to play a video stream from cameras that's initiated by the server or third party system. I figured RTSP would be the easiest since it's already supported by most ...
1
vote
0answers
42 views

What exactly is an IoT Definition Engine?

So , i was watching an IoT primer video on YT, which i found to be helpful and moderately detailed In the picture shown, they were showing the IoT Reference Architecture ( which i believe to be the ...
0
votes
0answers
31 views

LoRaWAN: What is a safe distance between two end devices using the same spreading factor that makes sure they don't interfere with one another?

I'm working on an algorithm with the help of a simulator that changes how end devices are distributed such that interference between end devices using the same spreading factor is minimized. I'm still ...
3
votes
1answer
93 views

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 ...
3
votes
0answers
43 views

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 ...
0
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0answers
40 views

Communicate with a smart plug from my own JSON server directely

I am new to the field of IoT, I am very grateful for your help. My goal is to turn on/off and obtain the state a smart plug via my own JSON server not using its manufacturer's API. Please if you have ...
0
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0answers
27 views

Aeotect smart HUB Third party API for integration with our software platform?

I was finding a Smart Hub which supports the large variety of sensors of different companies so after doing some research I found an Aeotect hub that can meet this requirement. Now Aeotect hub has ...
0
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0answers
22 views

How to configure watchdog mode with interrupt in MSP430F5358?

I am using the MSP430F5358 controller and want to enable the watchdog timer to reset the controller when some malfunction occurs with the Software. I need to add watchdog Interrupt so that it ...
0
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0answers
39 views

TFT screen shield worked and quickly quit

I bought an Arduino Uno board and the Elegoo 2.8" TFT Shield. I plugged them together. It just worked. Examples from Elegoo including graphicstest and displaystring worked great. Then I tried ...
2
votes
1answer
142 views

Make connection between react native & raspberry & MQTT

I am currently making an IoT App that I'm trying to connect to a Raspberry Pi using MQTT. I use the react_native_mqtt package. The problem I have is that it doesn't connect. What I'm trying to achieve ...
0
votes
1answer
43 views

Minimum IoT scope? Example: Is a car an IoT already by itself?

A car can be considered a "thing" in an Internet of Things. It does provide operational data to its manufacturer, is able to do emergency calls, can receive remote updates, etc. Looking at ...
1
vote
0answers
31 views

Internet radio buffering question

(hopefully I'm addressing the proper community) I'm building a KaRadio32 internet radio variant. Every now and then I'm experiencing some annoying hiccups from my radio (due to my flaky internet ...
2
votes
0answers
36 views

Nordtronic dimmer module won't connect to hub

I recently bought and installed a Nordtronic Zigbee led dimmer module for the bathroom lights but I have not been able to connect it to a hub yet. I am looking for a solution that also lets me use ...
1
vote
2answers
51 views

Application Server - ThingPark - End to end security

From the LoRa Alliance specification, we know that the LoRaWAN Application Server handles the decryption (uplink) and the encryption (downlink) thanks to the AppSkey. The first thing which is not ...
0
votes
0answers
19 views

Sonoff r2 mini, How to connect to such network?

I have a problem with the installation of sonoff mini r2 in my electricity installation from 2000. The connection here is very strange. I mean, it seems strange to me. In the switchbox I have 3 cables,...
0
votes
0answers
39 views

Is there a device to detect roof leaks?

I just had my roof redone and solar panels installed on the roof. As we're getting into the rainy season I've been concerned about the potential for leaks in my roof with all the new hardware. Is ...
1
vote
0answers
30 views

mqtt scheduler/timer

I am running a few devices in my house to collect data and enable/disable relays. All of the devices are esp8266 nodemcu with pir sensor 5v relays sensors and send over mqtt the data to a RPI that ...
2
votes
1answer
76 views

Can a device like chromecast degrade over time?

I'm having trouble connecting to my chromecast in any apps. Sometimes it works fine and sometimes it just won't work. I can see that it is connected to my WiFi network and I've read the very helpful ...
2
votes
1answer
65 views

Any devices that do what the Sonoff Mini R2 does, but is UL rated?

I have 2 Sonoff Mini R2's installed as a part of some remodeling work I'm doing on my house: What I love about these devices is that they allow you to turn any dumb toggle switch (what Sonoff refers ...
0
votes
3answers
49 views

Can I remotely control a NON SMART tv connected to my home network? [closed]

I have a Samsung TV downstairs that is connected to our internet via an Ethernet cable. I wanted to know if there is any way that I can access the TV remotely using my PC, to mess with the volume, ...
1
vote
0answers
34 views

Electric Gate Project further development

Newbie here, hoping to extend my control of electric gate system. Here is where I am at, and will then go on to explain where I want this to get to. My gate system is an old "out of the box" ...
2
votes
1answer
105 views

LoRaWAN device not receiving Join Accept

I have provisioned my LoRaWAN class A device using OTAA on the ThingPark Community platform. Now, it doesn't seem to receive a Join Accept message from the network as answer to the Join Request that ...
0
votes
0answers
71 views

Temperature sensor MLX90614 read object temperature above 300°C

I want to make sure the sensor read normally but when i run it to read the object temperature, the result is 382.19°C. I have search for tutorials, and also the error but i couldn't find it except for ...
0
votes
1answer
39 views

Battery powered MCU with accelerometers and LTE-COMS, looking for products

I've made a question previously but I did not give enough background info so here it goes: I have been developing a prototype for measuring ground vibrations using three MEMS-accelerometers together ...
1
vote
1answer
27 views

Is there a generic way to replace BLE remote with your own BLE controller?

Many smart appliance can only be controlled by the orinigal BLE remote. To control such appliance by your own smart home system, there need to be a way to replace the original BLE remote with ...

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