All Questions
2,187
questions
0
votes
0
answers
15
views
Panel heaters with built-in WiFi vs IoT controlled regular heaters
We have a cottage house with a panel heater in every room that we need to remote control. A simple and expensive option would be just to throw away all old heaters (all six of them) and buy new ones ...
- 101
0
votes
0
answers
33
views
How Zigbee devices preserve battery being disconnected?
I have some Zigbee devices like movement sensors, wall switches etc. Some of them are rarely used and I started to think about how much battery they consume when disconnected because I don't want them ...
- 1
0
votes
1
answer
50
views
How can I disable voice commands (Google Assistant and Amazon Alexa) on iRobot?
I have 2x iRobot (vacuum cleaner and mop) and use their proprietary app, but block internet access for both iRobots on OpenWrt firewall.
Now I want to disable voice commands (Google Assistant and ...
- 111
2
votes
2
answers
94
views
How to see when the washing with Bosch dishwasher is over?
I have SMV25CX03R Bosch dishwasher. It is not easy to control when the washing is over. This is built-in machine, so all LEDs and buttons are hidden when the door is closed. I am thinking about a way ...
- 121
0
votes
1
answer
146
views
Calculation LoRa range with RA02 chip
I want to use LoRa RA-02 based on SX1278 with 433MHz.
In some country I can send data in 10db max and I will connect 1/4wavelength (17cm) of antena.
In RA-02 write high sensitivity of over -148dBm
How ...
5
votes
2
answers
2k
views
Why can't I update my Ember mug's firmware?
My Ember mug has a firmware update available, but when I try to update it the process fails at 50% during a reconnection step. How do I make sure the update is able to finish?
- 171
1
vote
1
answer
64
views
Contactless integration of Z-Wave capability into blinds and SomFy-remote system
I want to control a couple of Garber blinds via my Z-Wave network. I already have a SomFy remote (looks the same/similar model as the picture in the link) to control the blinds, which a local dealer ...
- 121
1
vote
1
answer
125
views
Mosquitto Dynamic Security Plugin
One question I can't seem to find any docs about.
I have made a PHP API that uses the Dynamic Security Plugin.
Is there any way I can map the pub with the response in the sub topic? As of now it ...
- 11
0
votes
0
answers
22
views
Meaning of "common PC" or "garden PC"
I've recently started reading about IOT. One of the terms that I've come across (with respect to prototyping IOT-enabled device) is "common PCs"/ "garden PCs". I am unsure if this ...
- 1
0
votes
1
answer
96
views
Which output should be preferred - RS485 OR 4-20ma OR 0-5V OR 0-10V?
I am building a Duct Air velocity monitoring system.
The sensor has these four different output types -
RS485
4-20ma
0-5V
0-10V
I studied about RS 485 and I think the standard was used for Long ...
- 101
0
votes
1
answer
101
views
How to initiate connection to a GPRS enabled tracking device
I am trying to work with a few GPS-enabled tracking devices one of them being a TK-303 GPS tracker that uses SIM-powered GPRS to access the internet. currently, I can receive messages on my python TCP ...
-1
votes
1
answer
45
views
Notifications for LG WebOS updates and security fixes (e.g. a mailing list)
I have a LG WebOS TV (2021) which has no connection to the internet. Every few months I activate the internet connection in the firewall (OpenWrt) and check if updates are available. A somewhat manual ...
- 111
1
vote
0
answers
102
views
Bare metal or Non OS SDK setup for ESP-01 ESP8266 - Issues in setting up (esp dev toolchain on ubuntu 20.04 virtual box )
I bought ESP 8266 ( ESP 01 ESP 8266) online as I wanted to start development from scratch (direct flash from laptop instead of using arduino, not to use rtos but as much baremetal as possible).
As per ...
- 21
0
votes
1
answer
202
views
Turning on a floor lamp with a regular wall switch with the lamp connected to a different outlet that is not controlled by the switch
I've a floor lamp in my bedroom which was connected to an outlet that was controlled by a regular in-wall switch near the door. I used to turn it on with that switch as I enter the room. Now we had to ...
- 101
0
votes
0
answers
63
views
Serial (UART) WLAN bridge with ESP8266
I have an installation with an MCU with proprietary (unfortunately) and immutable firmware, that provides a serial interface to connect a PC or laptop to. Planning to make it accessible via the ...
1
vote
0
answers
14
views
Is there a difference between routers if I already have a smart hub?
I'm moving soon, and looking into adopting a mesh network. However, I'm also interested in adding some smart home devices to my new place.
I already have a 4th gen Amazon Echo, which has Zigbee ...
- 111
0
votes
2
answers
35
views
Sensor suggestions for accurate drone speed testing
I'm trying to build a system that would allow me to monitor a moving object in real time, to estimate its average speed over a fixed distance. The issue is that the object is a drone, it can't be ...
- 1
0
votes
0
answers
23
views
Hostname resolution different on both WiFi bands
I have a couple of devices that have a defined hostname, to which I can access/reach on both my browser and command line (using ping) when I am connected to my home network via LAN and 5GHz WiFi, but ...
0
votes
2
answers
46
views
Azure iot module twin update
I want to create an app to update the azure IoT edge module twin configuration.
which is the best option?
use the 'azure-iothub' package to update the twin directly from react app.
create an express ...
- 1
0
votes
0
answers
49
views
How to triangulate phone position?
Description: I am trying to create a map to see how people carrying a cellphone move inside of a given region (e.g. a building).
Since not everybody has Bluetooth or Wi-Fi turned on, I was trying to ...
- 185
0
votes
1
answer
249
views
decoding data sent from an esp32 using esp-idf over serial in nodejs
I have an esp32 board loaded with this software which is logging values about the number of detected wifi and bluetooth devices detected via LoraWAN. In senddata.cpp it seems to be logging out the ...
- 111
2
votes
1
answer
375
views
Connecting cellular module SIM7070G to AWS MQTT
I have troubles connecting SIM7070G (SIM7000 family) to AWS over built-in MQTT using AWS certificates. I've succeeded previously using the module only as a cellular gateway, but running FreeRTOS+...
- 151
0
votes
1
answer
48
views
Listing of MicroBit.h for V1 micro:bit?
I'm looking for a listing of the Microbit.h header file for V1 microbits.
(Trying to understand a C++ program for controlling the ADC).
I've been able to find the V2 version, but not V1.
- 1
1
vote
5
answers
994
views
Getting telemetry from Solax Inverter Pocket WIFI
I'm trying to get telemetry from my Solax hybrid inverter which has a "Pocket WIFI" device installed without the information going across the internet (its my data, its sent unencrypted and ...
- 143
0
votes
1
answer
538
views
Connecting Shelly i4 into existing circuit
I'm trying to connect a Shelly Plus i4 into an existing circuit by replacing a wall-switch.
Getting it in there was no problem, but everything getting power is. Having it wired according to the ...
- 101
0
votes
1
answer
130
views
How to effectively control Arduino via a web application?
I have a web application in PHP on remote hosting. The application is connected to a MySQL database, from which it reads states, draws graphs from the data that Arduino sends to the database.
The ...
- 1
0
votes
2
answers
451
views
tasmota on ESP8266 is not connecting to cloud mqtt server
i am trying to connect ESP8266 using tasmota, to a cloud mqtt broker and getting message
MQT: Connect failed to broker.hivemq.com:1883, rc -2. Retry in 10 sec
any ideas ?
- 11
0
votes
2
answers
327
views
How do IoT devices connect to Wifi access point by using a Smartphone
I am building an IoT device based on Android and I am trying to understand how I can use a smartphone to configure a device for connection to Wifi. The IoT device doesn't have a Screen. So I want to ...
- 101
1
vote
0
answers
76
views
How to configure WS2812B adressable LED strip with RPI?
I hope this is correct place to answer this kind of question.
I know this might be a basic question and yes there are a lot of tutorial out there.
Purpose: To make dynamic ambilight effect behind my ...
- 111
2
votes
0
answers
203
views
If device is on, turn it off (and vice versa) | Multi-Step Routines | Alexa
How to run an Alexa routine that checks the current status of a device, and changes it?
Example:
If LivingRoomLamp is on
Then turn off LivingRoomLamp
If LivingRoomLamp is off
Then turn on ...
- 151
1
vote
0
answers
40
views
Remotely controlled alarm
I would like to find, or if necessary, create a device that can be set to go off with a chime or alarm of some sort at certain times throughout the day. If that was all that was required, then no ...
- 111
1
vote
2
answers
687
views
How to start the Roomba when everyone leaves?
Roomba can use IFTTT to run the vacuum when a user's phone leaves a geofenced area. And you used to be able to use Life360 + IFTTT to trigger your smart vacuum to run when everyone has left the house (...
- 171
0
votes
1
answer
873
views
change preferred Wifi SSID in tasmota 11
I have a device with Tasmota 11.1.0 with two SSIDs configured. The device is now connecting to SSID2 and I would like it takes SSID1 as default one.
When I replace SSID2 with a non-existing name, then ...
- 101
1
vote
1
answer
174
views
Matter (like Thread) support in Australia - almost zero. Would a zigbee Smart Home be compatible?
I'm just starting my smart home journey and have been investigating. I prefer open and no vendor lock-in solutions and think Matter will be the solution for me, with Thread being a protocol heavily ...
- 111
0
votes
0
answers
172
views
Integration of AWS' Mobile SDK with flutter or react native application
We're generally developing mobile apps using Flutter or react native. I have a project for an app which is mostly an IOT app for end users and technical support, for an iot infrastructure running on ...
0
votes
0
answers
99
views
How LoRaWAN Class C downlinks works?
I am working on implementing a customized LoRa middleware, I am stuck on understanding how switch between classes works in gateway (server) side, for end node it’s clear for example to switch from ...
- 1
1
vote
0
answers
17
views
How is a Multi Access Edge Application hosted and connected to carriers user data?
I understand in general the core concept behind Multi Access Edge Computing. I have read through a lots of papers and everything is "high level" conceptual architecture. But when it comes to ...
- 111
-3
votes
1
answer
47
views
Why it is called Internet [closed]
Hi Today was my first computer class and our teacher told me that using internet my computer talks to other computers outside my house then if it is talking to outside computers why it is called ...
1
vote
0
answers
60
views
Alexa routine to run at 3am but only if I trigger it during the day
I want a routine to be triggered at 3am. I already created the routine, but I don't want it to run regularly at 3am, only if I trigger it during the day.
So I want to effectively say "Alexa, ...
- 111
0
votes
1
answer
32
views
Can a LoRaWAN end device know an ID of the gateway to which it's connected?
Supposing I want the application firmware in my LoRaWAN end device to behave differently when it's in a given geolocation and that geolocation can be defined by the local Helium base station or cell (&...
- 103
0
votes
0
answers
269
views
NFC - remove pass, write data, set pass
First I want to point out that I am a beginner with NFC tags. I use the NFC tools app and try to figure out what I can (and can't) do with the chip.
In the application there is an option for locking ...
- 101
3
votes
2
answers
2k
views
Is Matter, the unified protocol for IoT, usable for hobbyists?
I am a domotics enthusiast and I use some ESP8266 chips for various uses, mostly with HomeAssistant on my RPi. I recently bought some Zigbee devices and the benefits seem very interesting for IoT ...
- 131
0
votes
0
answers
364
views
Connect esp32 hardware to mobile app (Xamarin.Forms)
I'm designing some SmartLED controller (hardware/server) which can turn on/off some LED strips and do some nice effects etc. and it works on ESP32 chip.
Now, I was starting to write Xamarin.Forms ...
-1
votes
1
answer
3k
views
How to set up Google TV without remote
I have lost the remote for a Google TV device and after a factory reset I can't connect to it with the Google Home app on my phone. How do I make it work?
- 115
-2
votes
1
answer
260
views
Is it possible to connect an esp32 (or similar) to a "guest" WiFi network that requires logging in via a splash page?
I would like to connect an IoT device (esp32, etc.) to the guest WiFi network at the office. When I connect my own personal laptop to the guest network, it requires checking a box on a splash/welcome ...
1
vote
1
answer
276
views
LC Technology Relay x4 Reset to Mode 1?
Hi have a LC Technology Relay x4 board with a custom-firmware (using ESPHome) on the ESP01 attached to it.
As a curiosity, I pressed on the S1 switch to see if it's doing something. The "normal&...
- 151
1
vote
0
answers
332
views
ESP32-CAM DMA PROBLEM with upython
I'm running micropython_camera_feeeb5ea3_esp32_idf4_4.bin & the camera won't initialise if I've previously used https via urequests
E (14790) cam_hal: cam_dma_config(296): DMA buffer 32768 Byte ...
- 11
0
votes
1
answer
581
views
Connect PHP WebServer as a MQTT subscriber
I would like some advices and help concerning a IoT stack.
This is the stack I have imagined:
Arduino, the IoT device
Broker, doesn't matter for now, I will use a free public broker for testing.
A ...
2
votes
0
answers
32
views
How to account for variation in sensors across multiple devices?
I am working on installing 5 sensors around a workshop to measure the mass of different storage boxes.
I wish to use the same codebase to record and log all the data from each sensor setup.
One issue ...
- 21
2
votes
1
answer
215
views
LoPy4 MQTT Example does not Work
I have two LoPy4 Dev boards. I am using this tutorial in order to (successfully) communicate with the two boards. After receiving data in LoRa communication I am trying to also publish this data in an ...
- 151