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4 views

How to connect the bridge node of painless mesh to AWS IoT Core to publish message via MQTT?

Background: I am trying to work with two ESP8266 nodes using the painless mesh. Until now the painless mesh worked fine. At next level i made one of the node as bridge or root node. My intention here ...
-1
votes
0answers
9 views

why is ipv6 still not widely used?

What is slowing down the adoption of ipv6? The dns supports ipv6, the applications (server, browser etc) can just get ipv6 support from an update, so what is there that stops from everything running ...
0
votes
1answer
19 views

How do most IoT devices receive updates from SQL databases

With many IoT devices connecting to the internet to store information on large databases, I was wondering how they received data from those databases. For example, if I have a smart thermostat that I ...
3
votes
1answer
46 views

Testing security of IoT devices

Searching the archives for "fuzz" and "pentest" only results in 2-3 relevant threads on this topic and they are all from 2016/2017. I would really like to subject my IoT devices (e....
0
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0answers
15 views

+QIURC: “pdpdeact”,1 when trying to open network using AT+QMTOPEN over LTE-M1

I am trying to connect to the mosquito server over Vodafone CAT-M1 network but the call to AT+QMTOPEN always fails with +QIURC: "pdpdeact",1. Below are more details. The device is able to ...
0
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2answers
27 views

wireless moisture data transmission

i am mainly from software background with very very basic level of electronics/microcontroller knowledge. i recently did a small iot project for moisture/temp detection following this tutorial : https:...
0
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0answers
26 views

Power Bank 18650 - how to work with it?

I've found on Ali-Express an interesting dual 18650 battery package, which I fail to understand-operate ( or malfunctioned ? ). Its purpose is very clear - 2 single 18650 batteries, which can be ...
-1
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0answers
27 views

Why are most LiPos 3,7 volts

I know it's might be a stupid question but I'm wondering why there are no, or at least not many, 5 volts LiPo batteries when almost all components like GPS receiver or GSM modules are requiring 5 ...
0
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0answers
27 views

Flutter vs React Native (for building IoT Applications)

Good day Experts! I need your valuable suggestions regarding a very important decision in my development life. I need to know which framework is best suitable for IoT applications like communicating ...
0
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0answers
18 views

Mini weather station project not working

I have been trying to do this project for 2 weeks. The project is about mini weather station. It uses esp8266, DHT11 sensor,BMP180 sensor and FC 37 rain sensor. I have taken reference from the ...
1
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0answers
22 views

Securing wifi SSID and password during provisioning

This is yet another provisioning BLE/Wifi question. We are looking to secure the initial communication between our mobile application and smart device (esp32, ble and wifi). We want to make this as ...
0
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0answers
13 views

Connecting STM32 device to smart lock [duplicate]

I am using a Particle Boron to connect to a smart lock but I am not being able to do it. I'm using Particle's BLE interface to connect to bluetooth and start sending messages to the lock, and a ...
0
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0answers
10 views

Cannot set_mode() with Dragino/GPS HAT 1.4 and Raspberry PI 4

I am using the https://github.com/rpsreal/pySX127x library Raspberry Pi4 and a Dragino LoRa/GPS HAT for RPi v1.4. Running test_lora.py in the library, the unit test test_mode() fails with the error ...
1
vote
0answers
44 views

Integrating STM32 device with smart lock via BLE

I am using a Particle Boron to integrate with a Smart lock but I am not being able to do it. I'm using Particle's BLE interface to connect to bluetooth and start sending messages to the lock, and a ...
0
votes
1answer
41 views

Xiaomi SmartMi Fan 2S problems - Wi-Fi MiHome app not connecting

My SmartMi Fan 2S arrived today, I've finished the initial device setup in Mi Home app. The process of pairing was slow, but in the end, it finished successfully. And now 95% of the time I see the Fan ...
0
votes
1answer
33 views

Connect to ESP8266 outside network, not using portforward or VPN

I am looking for a way to connect to my ESP8266's web server without being connected to the same network as it. Also, I want to be able to connect to it without using the port forward or VPN tunnel ...
0
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0answers
10 views

Acquisition of data from scale (OHAUS Aviator) to MCU

I have an Ohaus Aviator 7000 scale, and I need store the weights of various items digitally. Although the scale is supposedly capable of exporting measurements directly to a computer, I have not been ...
0
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0answers
14 views

SmartThings and Aeotec Siren

It’s a long story why but I’m looking trigger an Aeotec Siren Gen5 when my home security alarm goes off. I’ve talked extensively with the security company and they can’t support this siren (they used ...
0
votes
1answer
28 views

switching setDebugOutput off on esp8266

This thing is driving me nuts. I tried to debug my MQTT secure connection on nodecmu. Following some post from year 2015 I was switched on debugging output with Serial.setDebugOutput(true). Now I ...
0
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0answers
49 views

How to reconnect to MQTT server after CONNECTIONLOST?

I'm using a Raspberry Pi 3B+ with SIM7600X 4G HAT for communication with Python. I want to connect to MQTT server to receive messages via writing MQTT commands directly to the serial port of the ...
0
votes
1answer
37 views

Connect multiple smartphones to single IoT device [closed]

I am new to IoT. I want to connect multiple smartphones (simultaneously) to single IoT device (chipset), wirelessly, but without internet. I want to turn on/off some electric device (for example, a ...
1
vote
0answers
10 views

Can I add one more speaker to a Sonos home theater set with surrounds and sub?

I’ve a complete Sonos home theater set with Playbase + 2 sonos One (Stereo) + Sub. Since my kitchen is connected with the living room and I use youtube on TV to listen to music, I would like to add a ...
3
votes
2answers
35 views

ESP32 always high pins screwing analog measure

TL;DR When trying to use some pins of my ESP32 to read analog signals, it turns out those pins have a non-zero voltage, messing up the measurements. Why? I got myself an Olimex ESP32-POE-ISO (see ...
1
vote
0answers
30 views

How to send GPS coordinates to a SQL database from my GPS+GSM device?

I'm getting ready to start building a simple wireless GPS device. This device will use an arduino, and a cellular GSM module paired with a GPS device (an example is the SIM5320a aka the FONA 3G from ...
0
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0answers
35 views

podcast on TuneIn talk radio isn't available right now — well, why not?

Trying to listen to a perhaps controversial podcast: However, Alexa tells me: here's no agenda from tunein resuming 1243 obamable no agenda on tunein talk radio isn't available right now How do I ...
1
vote
1answer
30 views

What exactly does the internet of things encompass? [duplicate]

When I think of the Internet of things, I think of fairly low bandwidth devices connected to the internet. That could be automotive telematics, medical devices, building monitoring, factory sensors,...
1
vote
1answer
24 views

How to remap mqtt value to some other topics in mosquitto

I have a value under milight/states/0x1/fut089/1. What I'm trying to do is to replicate this to milight/states/0x[2..4]/fut089/1 I've already tried the following config: connection milight-...
-1
votes
1answer
21 views

Why does my TV not show the mediafiles provided by DLNA?

I got a telefunken-TV (Model: A50U445A) and a Symology NAS DS218+ I use the built-in media server on the NAS to publish mediafiles (movies) via DLNA in my wlan. The TV shows the NAS, it shows the ...
0
votes
1answer
30 views

Python Paho MQTT doesn't work via LTE

I'm using Raspberry Pi 3 B+ with a SIM7600X 4G HAT for SMS and mobile internet connection. I want to use Paho MQTT library (it works fine), but it only works via Ethernet or Wifi. How can I use the ...
3
votes
0answers
24 views

Using zigbee devices as repeaters without a hub

I want to use a Spruce smart irrigation controller (it connects to wifi through 2.4ghz) with a Spruce soil moisture sensor (connects to the controller via zigbee). The sensor needs to be a bit far ...
2
votes
2answers
30 views

How can I get Google Assistant to talk to “TickTick” instead of “Tik tik”?

I use a todo list app called TickTick. The app has a Google Assistant integration available. However, when I try to say "Talk to TickTick" Google Assistant always talks to another quiz app called "Tik ...
0
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0answers
27 views

What does the abbreviation “SPINS” for the security protocol for WSN mean?

Since the protocol SPINS is as far as I understand it commonly spread I would like what exactly the abbreviation means in the paper "SPINS: Security Protocols for Sensor Networks" by Perrig et al. he ...
3
votes
1answer
32 views

Is there an out-of-the-box solution for PWM controlling?

I need to ventilate a room because of my Resin printers. I have a discarded kitchen extractor hood with an EBM fan in it. It takes 10v PWM to control the speed. And the lights have a driver. To ...
3
votes
0answers
53 views

High data usage on a raspberry IOT [closed]

I have notice a signification data usage on my pi even when I am not using it. this can be a problem as I am using a IOT sim card with a small cap. I have setup iftop and monitored the traffic for a ...
5
votes
2answers
60 views

Send data from MQTT topic to WebServer

I have many raspberry Pis monitoring temperature and humidity in real time and publishing the data continuously to an MQTT broker (I am using Mosquitto at the moment). The Raspberry pis are all ...
3
votes
0answers
13 views

Separate shopping list on Alexa

I share a Amazon prime account with another and we each have an Echo. Each Echo is setup with our respective accounts. When we ask Alexa to add something to our shopping list, both Echo's write to the ...
1
vote
1answer
42 views

Do PSM drop TCP/IP session(MQTT) when going sleep?

Any idea if PSM should drop the PDP context and the TCP/IP session information when going sleep? My understanding is PSM should retain all these info, so when wake up, it can seamless connect back to ...
2
votes
0answers
26 views

Delayed IIO Sensor Readings

I am reading sensor data off of a Dell gateway, and noticing that the sensor data at iio:device2 seems to have a delay of ~1 second when reading using cat /sys/bus/iio/devices/iio:device2/in_temp_raw ...
0
votes
0answers
22 views

Suggestion between bluetooth and wifi for a simple sensor reading application

So I have a simple application that involves reading the input over terminal via UART, and then responding accordingly, be it toggling an LED or outputting a sensor reading over I2C. As a step up, I ...
1
vote
0answers
303 views

esp-idf - mqtt ssl example certificate error

I'm having some trouble with mqtt ssl example on esp-idf ESP32. Example: mqtt_ssl If I test it with the default broker "mqtts://mqtt.eclipse.org:8883" and default certificate "mqtt_eclipse_org.pem" ...
1
vote
0answers
22 views

Client only connecting after restarting mosquitto [closed]

I am debugging my python written flask application (using flask_mqtt) I just deployed on a raspberry pi zero wh. On my linux machine (notebook) everything works like a charm, however, on the raspberry ...
1
vote
0answers
18 views

Gearman/Celery/Beanstalk style task queues using MQTT

I currently use Gearman to communicate with workers. It has a nice property that requests are retried when a worker/recipient dies, and are deleted from the queue, if a client/sender dies. This way a ...
0
votes
0answers
15 views

Calculate NFC Tag size to store static data

I'm trying to design a system that transfers the DateTime of entry and exit of people to another system. The data is log of records per week for each person and must be transferred once. These data ...
0
votes
0answers
16 views

How to set Stitcher as the default podcast client for Alexa?

Using the web interface for Alexa, I'm only seeing an option to set the default music player. How do I set the default podcast player to stitcher? The default podcast client is TuneIn, which, at ...
4
votes
1answer
67 views

Open source framework for ESP8266 to work with Amazon Alexa and Google Assistant

I'm working on a multi channel sonoff device with ESP8266. I want it to be able to support popular iot home control platforms such as Amazon Alexa, Google home... It must have a button and share ...
1
vote
0answers
40 views

C# based MQTT other than MQTTnet?

I was looking for a C# based MQTT broker which has full open library or api so that we can call those functions in our code to get messages and other relevant data such as list of connections, topics ...
8
votes
1answer
383 views

Decrypt ZigBee traffic of IKEA Tradfri

I'm currently trying to decrypt the traffic in a IKEA Tradfri Network (some bulbs, a 5-button remote, a gateway). I use a CC2531 Sniffer with ZBOSS and Wireshark to sniff the traffic. This is working ...
1
vote
1answer
45 views

Is there a complete admin panel/interface for MQTT net or or any other private MQTT Servers/Broker?

I'm making a simple automation system for someone and require a MQTT admin panel for server/broker. I want it such that the admin who runs the server, is able to see and change the password of the ...
1
vote
0answers
26 views

Blind actuator end positions

Looking at a new electronic shading system for my flat I was wondering how blind actuators generally work. I know they switch between the two phases (L -> down, L' -> up) depending on the 2-button ...
3
votes
0answers
32 views

ESP IDF Data backup to NVS when power goes off

I am using esp-IDF library and esp32 for smart lighting. I want to maintain the state of the lights when power goes off as it can be written somewhere in NVS. Such implementation is available for ...

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