All Questions
2,083
questions
0
votes
1
answer
25
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
0
votes
0
answers
10
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 ...
- 133
0
votes
0
answers
13
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
54
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
1
answer
26
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
34
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
49
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
25
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 ...
- 131
1
vote
0
answers
15
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
50
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
0
answers
19
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
0
votes
1
answer
29
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 ...
- 101
0
votes
0
answers
17
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
20
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
14
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
36
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
25
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
25
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
44
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
2
votes
2
answers
88
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 ...
- 121
0
votes
0
answers
71
views
Connect esp32 hardware to mobile app (Xamarin.Forms)
Im designing some SmartLED controller (hardware/server) which can turn on/off some ledstrips and do some nice effects etc. and it works on esp32 chip.
Now, I was starting to write Xamarin.Forms mobile ...
0
votes
0
answers
13
views
Leaksmart water flow meter with water valve Item #: 8853001 and Item #8852400 compatible with Aeotec Hub i.e SmartThings
I want to install a Leaksmart water flow meter with a shut-off valve Item #: 8853300 and I have Aeotec Hub(i.e SmartThings). Before I purchase that product I want to know that this item can work with ...
- 41
-1
votes
1
answer
76
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
41
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 ...
0
votes
0
answers
15
views
Can the state of one Google Home device control the state of another device?
Is it possible for a Google Home device to report state which then can affect the state of another device?
For example a thermostat device reports a temperature threshold is met and Google Home then ...
- 101
0
votes
0
answers
35
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&...
- 141
1
vote
0
answers
52
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
0
answers
31
views
What is the "fully independent automatic working mode" of the RFM97CW LoRa module?
I was searching for LoRa transceivers for a project to create a tracking device, and I came across the RFM97CW and RFM95CW, that claim on their product pages to have a "fully independent ...
0
votes
0
answers
24
views
Recommendation and compatibility of Smart sprinkler controller and smart soil moisture sensor with Aeotec Hub(i.e SmartThings)
Scenario: Smart soil moisture sensor and Smart sprinkler controller will be connected to the Aeotec Hub. When the soil moisture sensor detects less moisture it will automatically start sprinklers ...
- 41
0
votes
1
answer
77
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
23
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
62
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
2
votes
1
answer
82
views
Tasmota WebQuery rule not reaching URL despite logging "performs WebQuery" (with Command: Unknown)
I have added rule to my tasmota sonoff light switch (typing in console web interface):
Rule1 ON POWER2#state==1 DO WebQuery http://192.168.0.106/input.php GET ENDON
The output from console:
11:51:24 ...
- 121
0
votes
0
answers
25
views
Can the relay be controlled over serial on the ESP8266 WI-FI?
I recently purchased an ESP8266 WI-FI which looks similar to this but is actually this one with the extra row of pins by the serial lines. I'm following along with the instructions on the first page ...
- 1
2
votes
0
answers
50
views
PTZ Security Camera Stuck in a Tour
I have an outdoor PTZ Dome Camera of unknown manufacturer but it has a type number sticker saying, NG4RT-42718. It came with CMS V3.1.0.8 software. This seemed to drive the camera adequately until I ...
- 21
0
votes
0
answers
26
views
Using Xiaomi Mi Band for a Indoor Navigation System
I have to use a Xiaomi Mi band 6 for receiving the BLE signal strength from some beacons deployed in a room in order to track user's position. My initial plan was to develop a wearable App that ...
1
vote
1
answer
48
views
How to wire multiple DS18B20 temperature sensors?
I want to wire up a few DS18B20 sensors to measure various points across a span of about 10 meters. (I intend to hook this up to an ESP8266 and use Tasmota, but I think that's not really relevant to ...
- 133
0
votes
1
answer
174
views
How to handle the connection in MQTT using Paho
I've managed to connect to my Mosquitto broker of Paho MQTT JS client. However, the client disconnects inmediately after completing the connection. Before it worked now I'm testing it doesn't work.
...
- 167
1
vote
0
answers
293
views
How to import libraries with ESP-IDF for visual studio code?
What I am trying to do
I have an ESP32-CAM, and I want to use Visual Studio Code, I already used the Arduino IDE at first, and it worked fine.
To work with the ESP32 on VS Code I installed the ...
- 161
3
votes
2
answers
49
views
Iot datalake. Can you help me. Thanks [closed]
I collect data from iot sensors.
I get some byte datas, whose bits have some meanings.
I will use some bits for anlytics finally.
So the following is my question.
Should I convert these bits used for ...
- 31
1
vote
1
answer
101
views
Real-time web-app for IOT devices
Goal
I'm currently building a web-application to control multiple IOT devices over the cellular network, given the nature of the devices (working off battery power and operating in network constrained ...
- 11
1
vote
1
answer
94
views
Heltec WiFi Lora32 - Can i received LoraWAN packets?
I bought this shield and trying to receive LoraWAN packets in my surrounding.
ESP32 Heltec Lora
Within their SDK there is examples of receiving data for Lora, joining LoraWAN, however i am interested ...
- 113
0
votes
0
answers
78
views
MQTT TLS by Node-RED
I had a problem when sending request using MQTT through Node-RED.
I actually have a LorAWAN gateway that is connected to TTN Cloud and Node-red was deployed in the gateway as an additional application....
0
votes
0
answers
23
views
Control a Sony EVI-D90 PTZ (visca protocol) by using a joystick who is not support visca but only Pelco
That's nice to have such community to look for help when we need.
I have a Sony EVI-D90 camera which support VISCA protocol, and I have a joystick controller from HIKVISION DS1003KI which supports ...
0
votes
0
answers
42
views
Using smartphone as a Zigbee end node
I am looking for a "presence" solution with in a 3-5 meter radius.
It can be a always connected device or a beacon type (just transmitting signals periodically. It is does not need to be ...
- 109
1
vote
0
answers
34
views
Combining the detection of smoke+motion+temperature+light in a single wired device
I'm working on a prototype home automation for our to-be renovated off-grid farmhouse. Much of the house will run directly on 24V DC (except the power devices like microwave etc).The whole setup will ...
1
vote
0
answers
30
views
How to play specific sound to speaker when motions detected at specific time?
If motion 1,2,3 detected at midnight, I would like to play this sound to my deck speaker and flash my smart bulb red (on repeat).
What is the basic way to achieve this?
Tools:
Samsung SmartThings hub, ...
- 111
3
votes
1
answer
67
views
Mylek heater on Tuya app - online/offline
I've been using the Tuya app on iPhone for a couple of months, first with a Devola heater which broke down in a month so I sent it back, now with a Mylek.
I didn't realise until I got the Mylek that ...
- 141
0
votes
0
answers
22
views
Network traffic to AWS IOT server
I have simple application basic-pub-sub from AWS CPP SDK that performs basic actions on AWS IOT server. I was trying to monitor network traffic between application and device endpoint provided by AWS ...
- 123
3
votes
1
answer
33
views
Digital door lock standard protocol
What's the standard protocol used by digital door locks that are managed through Bluetooth devices? Like Android and iOS devices.
While digital locks and Epic works with Android app like KeyWe little ...
- 131