All Questions
2,187
questions
2
votes
1
answer
610
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
34
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
90
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
70
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
172
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 ...
- 143
0
votes
1
answer
974
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.
...
- 179
1
vote
0
answers
2k
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
58
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
270
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
243
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
129
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
30
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 ...
1
vote
0
answers
107
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 ...
- 119
1
vote
0
answers
46
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
64
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
170
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
3
votes
1
answer
53
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
4
votes
2
answers
2k
views
ESP32 CAM unable to use micropython and connect to the esp
I am trying to install micropython on my esp32 cam.
I tried 3 differents ways to do it.
First one command and putty
I installed python and esptool with pip install esptool.
Then I looked wich COM was ...
- 161
0
votes
1
answer
27
views
Help selecting a microcontroler
I need you help, currently I`m searching for a microcontroller
That supports ultra power mode.
Has bluettoth support.
Can be waked up by a wireless interruption.
The microcontroller must be powered ...
-5
votes
2
answers
265
views
Hardware to wire ESP32 directly to 110VAC? [closed]
I'd like to fit an ESP32 directly into a single gang (North American) electrical box with enough room left over to fit a typical light switch over the top of it (these are usually pretty shallow, and ...
- 91
0
votes
0
answers
66
views
Using ESP32 as a web server and Arduino
This is my first project and I'm getting my way around this.
I wanted to make a simple project using Arduino creating a web server, in order to turn on and off the AC.
I think I made a mistake buying ...
1
vote
0
answers
20
views
How to setup an alternative algorithm to ADR?
I've setup a simple LoRaWAN network with a Seeeduino node and an RHF2S001 gateway module using a Raspberry pi 3. I'm working on a project where I need to setup an alternative algorithm to ADR (...
- 11
0
votes
0
answers
21
views
How to minimize the calls to server to update the nodemcu pins
I have created an api which fetchs data from sql server.
My Android app has buttons, on click it calls that api and posts status of pin.
My node mcu hit that api for the current status of the pins.
I ...
- 1
2
votes
1
answer
493
views
How to make Amazon Echo device to control devices in the same room with the same name?
I have two Amazon Echo devices installed in two rooms. I have created groups and added devices of the rooms to their respective groups. But I have some devices with the same name. For example, I have ...
- 121
0
votes
1
answer
48
views
Different message payload for two debug nodes from single output
In NodeRed, I am seeing a different message payload sent to two debug nodes that are connected to the same output.
Here is the debug output. Take note of the identical message id, and the different '...
0
votes
1
answer
486
views
How to list mosquitto clients using dynamic security feature?
I got the Dynamic Security of mosquitto mostly working. However, I'm not sure how to use the listClients command through the json approach, as explained here:
https://github.com/eclipse/mosquitto/...
- 317
0
votes
0
answers
38
views
Is IoMT technologically different to IoT?
It seems from papers such as this that IoMT is just IoT for medical devices with no new technological developments.
Is there anything about IoMT such as a standard that somehow differentiates it from ...
- 1,215
1
vote
0
answers
56
views
Is it possible to run a 12v Nema17 Stepper motor remotely with ESP32 over LORA P2P?
I'm new to this, but I have 2x ESP32 LoRa modules that I want to setup. I want to be able transmit a signal from one ESP32 LoRa module to the other ESP32 LoRa module over LoRa to run a stepper motor ...
0
votes
0
answers
58
views
Choosing BLE beacons and gateways
I don’t get what is the difference between different beacons. For example, the Meeblue M52-SA costs 10 USD, approximately, and the Estimote Proximity beacon costs 25 USD. Both use Bluetooth 5, their ...
- 101
1
vote
0
answers
472
views
Ikea Tradfri Gateway still not found by app within the same network
I've connected the Tradfri Gateway (GW) to the LAN port of my router. The Internet light (middle) is already stable after some time, but the Network light (topmost) is always pulsing. Anyway, I ...
- 11
0
votes
1
answer
574
views
What tasmota commands (web console) will turn on an indicator LED that I suspect is at gpio3?
I've just used tuya-convert to flash a Soundance C198 powerstrip. This is my first time doing anything like that, and I'm a little lost. The web interface gives me a list of gpios 0-10, and 12-17. ...
- 91
1
vote
1
answer
77
views
Best memory choice for my sensor
I'm a software developer and trodding in murky waters here so please do forgive my lack of knowledge. I've been developing a sensor with the nRF9160DK and some accelerometers. I need to continuously ...
- 11
2
votes
2
answers
445
views
ESP32 UART reads garbage
Well, I have no experience with ESP32 UART, tried it and failed. In brief: I need to implement a data exchange between ESP32 and external module via UART. And at some point I need to read the data ...
- 161
3
votes
2
answers
380
views
How to make Sengled Zigbee bulbs more reliable
Background
I have a bunch of Sengled Zigbee bulbs that I use in plug-in lamps, with a Samsung SmartThings hub controlling them.
The ones that are in the same room as the hub work 99% of the time, but ...
- 31
1
vote
0
answers
55
views
Where can I find the firmware for RHF2S001 gateway?
I'm using this LoRa LoRaWAN Gateway - 868MHz Kit with Raspberry Pi 3 to set up a simple IoT LoRaWAN network.
https://www.seeedstudio.com/LoRa-LoRaWAN-Gateway-868MHz-Kit-with-Raspberry-Pi-3.html
I have ...
- 11
0
votes
1
answer
396
views
Gosund (tuya) SP1-C managment via telnet
Can I turn on/off my electrical socket "Gosund SP1-C" from local network ? (via telnet, for example. Like it happened with Yeelight bulbs) I see that 80, 8080 and 5353 ports are opened but ...
- 11
4
votes
1
answer
220
views
How do I open the blinds in this room?
I have the following rooms in my house
Room A
Room B
Room C
In those rooms, I have the following Ikea smart blinds.
Room A: "Room A Blind"
Room B: "Room B Blind"
Room C: "...
- 181
1
vote
1
answer
71
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 ...
- 13
0
votes
0
answers
171
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 ...
- 133
0
votes
0
answers
1k
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 ...
- 133
0
votes
2
answers
192
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 ...
- 179
2
votes
1
answer
81
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
votes
0
answers
77
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)...
- 101
4
votes
1
answer
4k
views
How to use the onboard LED on the ESP32-C3-DevKitC-02
I just bought an ESP32-C3-DevKitC-02 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" ...
- 143
0
votes
1
answer
51
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 ...
- 133
1
vote
0
answers
116
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 ...
- 11
3
votes
2
answers
106
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 ...
- 153
2
votes
0
answers
31
views
How to control homework writting machine with IOT [closed]
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 ...
- 21
1
vote
2
answers
785
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 ...
- 133
0
votes
0
answers
140
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 ...
