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13 views

Comparison of consumer air quality monitoring devices vs lab reference equipment [closed]

What are some attempts that have been made to compare readings of common pollutants (e.g. NO2, PM2.5, PM10) from widely available consumer-grade hand-held or household air quality monitoring devices (...
0
votes
1answer
16 views

Building bidirectional people counting sensor

I am trying to build a people tracking sensor for counting the traffic of a specific area (building or shopping street). I need to detect people coming in or out of a room, also if two people are ...
0
votes
1answer
10 views

Mongoose OS and button press detection

Under Mongoose OS, I’m trying to write some code to detect that a button was pushed. I wrote the code below, but it thinks the button is always pushed, except when I actually push it. When I push and ...
1
vote
1answer
21 views

YouTube app cast function to Google mini speakers

I can cast YouTube app to a Smart TV. On Android phones, can YouTube app cast to Google mini speakers as well?
4
votes
2answers
62 views

How can I transmit this information from my device using the least data possible?

I have got a Raspberry Pi setup to transmit things over socket from my project. It currently does this over cellular data on a pay as you go plan, so I would like to optimise it. All that needs to ...
0
votes
1answer
18 views

How to add the feature of adding wifi device or iot device in an app?

I created an application on dyo appypie platform . The platform doesnt have the feature to add any wifi or iot device . I am having conversation with developer team , cause its dyo platform they cant ...
0
votes
1answer
21 views

Question about Eclipse Paho Mqtt Android Client library function “isConnected”?

I'm making an android application to communicate with a bicycle security system using android studio. The application is using the MQTT protocol to talk to a remote server which will act as the broker ...
1
vote
1answer
56 views

How to bind routines as opening the garage door to google maps?

Is it possible configuring Google Assistant so that it automatically starts the "open the garage door" routine when Google Maps detects I am home? For instance after navigating me home Google Maps ...
-3
votes
1answer
48 views

How are journeys tracked via contactless card? [closed]

In London, and soon in Paris also, contactless bank cards can be used to pay for public transport. The system tracks a user's journey, through the "tapping in" and "tapping out" of the user; and then ...
1
vote
0answers
21 views

No sound on Chromecast with Netflix

I just bought a new Thomson 32HD3331 TV and a Chromecast 3 device and I'm having a really strange sound issue in Netflix. For most films, I'm not getting any sound, but I do for a few (e.g. South ...
1
vote
1answer
32 views

Connecting to a remote IoT device using a 4G dongle

I am building an IoT device that needs to be deployed at a remote location. There is no fixed line accessibility having me resort to a 3G/4G wifi dongle for connectivity. Are there any alternatives ...
1
vote
1answer
43 views

What is the difference between Texas Instruments CC3235sf and ESP32?

I have used esp32 in my projects and its easy to use. But I want to try using CC3235SF. But how does it work exactly? It has on-board RAM and 1MB Flash, so does it mean I can program it directly like ...
1
vote
0answers
17 views

Facing error in the file pom.xml of the eclipse-greenhouse-iot package which cause further issues

I am new in this field and I wanted to ask for help regarding the issue that I am facing here; I checked the eclipse-greenhouse-iot package and have seen error in pom.xml file: The error description ...
1
vote
0answers
27 views

Which conferences and journals are notably trusted in the area of wireless sensor networks?

I am trying to get into the field of security concerning wireless sensor networks and found several good books and papers. But still this research topic is filled with fraud publications on ...
1
vote
0answers
37 views

Can I use ESP32 as a proxy to connect BLE device to AWS IoT cloud? [closed]

Reading AWS IoT documentation I see that the proxy could only be an Android or iOS device. To be more precise I’d like to publish from BLE (nRF52840) To AWS IoT using MQTT, but this device doesn’t ...
0
votes
1answer
37 views

Search for a device that uses a mobile sim and that acts on a relay by ringing the sim

I am looking for a device that has an internet connection via a mobile sim. It allows owners of enabled telephone numbers to switch a relay by ringing the device sim. The system will be used to allow ...
1
vote
2answers
26 views

Changing Input Source on my TV with Google Home

I'm using my big monitor in 2 modes 1) to work (Macbook connected via USB-C) 2) to chill (Chromecast connected via HDMI) There are problems with automatically switch the input source. When my Macbook ...
1
vote
1answer
15 views

Playing video on my TV with Chromecast, but an audio on my Smart Speaker

I have a TV with Chromecast 3 plugged in and an additional Smart Speaker (JBL Link 300). My Smart Speaker has a better sound quality so I would like it to be an audio output always, even if I ask it ...
0
votes
1answer
60 views

Philips Hue App - out of home control sign-in problem

I am trying to control lights from outside using Hue app on my Android phone, but when I try logging in, by hitting 'log in' button under 'out of home control' under Settings, it takes me to an ...
2
votes
1answer
34 views

How to build a 220v ~40 amp WIFI switch (for pool pump or similar)

I'm looking for ideas and suggestions to build a 220v ~ 40 amp wifi switch for controlling my pool pump so that it can replace my mechanical timer. Very few devices are available on the market. There ...
1
vote
1answer
14 views

What is the difference between Particle Photon, Argon, Xenon, Boron, etc?

For one project I have used the Particle Photon, an IoT device similar to Arduino, and am considering changing to a different device for another project (a motion detector that has its own question). ...
2
votes
1answer
21 views

Motion detector system that can be flashed remotely

I want to build a motion detector that performs a similar service to security services, which notify me upon intrusion and provide video feed. The other main requirement is that I can update the ...
1
vote
0answers
15 views

Timed Motion Sensor

I am wanting to setup an automated security function with our smart home setup. Does anybody have any idea on how to setup a schedule to enable a motion sensor during a specific time? I'm trying to ...
1
vote
1answer
19 views

Subscriber not receives message from client

My Mosquitto server whole ACL file content: pattern write s1/%c pattern read s1/%c I know there should be possibility to have single line: pattern readwrite s1/%c But my server complains with ...
2
votes
0answers
20 views

What are the best practises AWS IoT thing registration process?

What are the best practises AWS IoT thing registration process? How can the process of making devices available to the users be streamlined? I need to know how can this be done in a viable way. ...
1
vote
0answers
18 views

Subscription makes impact on access control in Mosquitto

I have single line in Mosquitto ACL file: pattern read write s2 I'm trying to post to s2 : mosquitto_pub -h 192.168.1.8 -t s2 --cafile ca.crt -m "test" -p 8883 -d -u b -P b -i b Got results in ...
2
votes
2answers
38 views

Cheap low specs board with network and audio

I'm looking for an IoT board with: wifi, bluetooth and ethernet audio input at least 64Mb of RAM at least 128Mb of flash memory I'm trying to build an audio streamer box (for Sonos) which means a ...
0
votes
1answer
20 views

OTA updates with AWS IoT Core

I'm trying to build a device on AWS IoT platform with OTA updates. The device is based on Raspberry Pi (or similar), has half a dozen sensors, runs some inference on the collected data, and can ...
4
votes
3answers
454 views

Wi-Fi smart plugs with no hub or internet access?

Are there any smart plugs out there that connect over Wi-Fi, don't require a hub, and don't use the cloud/don't require an internet connection? The idea is that I should be able to somehow turn them ...
1
vote
0answers
16 views

How to implement double click in HDL M/S 24 module

I have HDL M/S 24 dry contacts module. Using it I'm planning to control light groups, blinds, scenes etc. I've managed to configure single click and long click but how could I also achieve double ...
1
vote
0answers
42 views

Plotting data from arduino via server [closed]

I'm sorry if I'm not posting this question on the wrong part of stackexchange, but I have no idea where to go with my needs. I have an arduino sensor that meaasures a quantity every day. The goal is ...
3
votes
1answer
26 views

Connecting from a PZEM004T via a USB-TTL to a computer

I am trying to connect a PZEM004T (without display) to a USB port on my PC via a USB-TTL adapter board. My intention is to send requests to the PZEM via the Adapter board. I had attempted by ...
1
vote
0answers
20 views

Creating a Non Blocking socket for making GET requests

I am using an ESP32 with a MicroPython Firmware and want to make asynchronous HTTP requests such as GET request. I have tried using usocket but it did kept throwing OSError 128. I have attached my ...
2
votes
0answers
27 views

BLE devices with AWS IOT gateway

I am building a setup for 1-10 wearable sensors (all in range) to send data over BLE to: co-located android device app for each sensor AWS EC2 for further processing and web app serving. a dashboard ...
5
votes
1answer
33 views

PZEM-004 cheaper alternatives

I am an programmer, trying to monitor consumption remotely, I need some form of communication via cable to transmit (even if I trasmit it WIFi later), PZEM-004 for me is very expensive, and I don't ...
3
votes
1answer
30 views

Google Home: Setting RGB smart globes to colour-cycling 'scenes'

I have various brands of RGB smart globes (or 'smart bulbs') and LED strips, each with their own Android apps. I'm pleased to say that, these days, Google Home can set the brightness and colour—at ...
2
votes
0answers
24 views

Secure External Network Control of a MQTT Server on a Raspberry Pi

I'm trying to build a home automation system using MQTT. I'm using a Raspberry Pi as the broker. Everything works great as far as controlling it when connected to the same network. But I want to have ...
6
votes
2answers
71 views

Encrypting sensor data on Raspberry Pi?

I am sending sensor data between two Raspberry Pis via lora. I am using two Lora Radios and NOT using a LoraWan network like The Things Network. How should I encrypt my data? Are there any open source ...
4
votes
1answer
28 views

How to use calendar without showing notification on display

I'm using Google calendar with Echo show by voice. But by default Echo show also displays upcoming events, and my friends coming to home can see it. It's a bit annoying. I can disable all ...
4
votes
0answers
24 views

How to transfer data over bluetooth between ESP32 and Android?

I have trying to find examples for codes to exchange data over bluetooth between esp32 devkit module and an Android device. I want to use SDP to broadcast a service and then make my Android app ...
6
votes
1answer
35 views

Make Alexa, Sonos, or some other speaker to speak, when an email is received

I would like to have some kind of audible warning when an email arrives to my Gmail inbox (besides the sound of my phone). Is there any way to make Alexa (or maybe some other speaker) to speak when ...
6
votes
0answers
48 views

How to increase the Lora range using a LoStik?

I know this is a common question but I am wondering how to increase range on my Lora 'LoStik' device. https://www.crowdsupply.com/ronoth/lostik I am trying to send data from one LoStik to another. ...
1
vote
1answer
27 views

How to use Grove Connectors with the ESP-WROVER-KIT-VB development board?

I am plug & play, non-soldering type. As such, I love Grove Connectors. Does anyone know of a non-soldering, preferably non-breadboard, way to use them with the ESP-WROVER-KIT-VB development ...
5
votes
2answers
43 views

Smart Plug that turns off when restarted?

I am designing a simple control circuit. I am turning on a motor using smart plug. I am looking for a smart plug that shouldn't turn on automatically when power is cut off to it. Means it should turn ...
2
votes
1answer
50 views

How to program my own smart home with raspberrypi 3? [closed]

Hello smart home enthousiasts, I'm a software engineering student and I want to start a new project for myself. I really like smart home stuff, but I don't want anything to do with google or amazon. ...
2
votes
1answer
39 views

BLE Heart rate monitor slower without internet

I am working on a project that uses a raspberry pi and a BLE heart rate monitor. I am using the built in Bluetooth on a raspberry pi zero w 1.1, running the latest raspbian buster, using the bluez ...
4
votes
2answers
58 views

OS for Orange Pi zero plus

I bought an orange pi zero plus and want to make a wifi access point that passes all traffic of the connected devices through tor. Simply I wanted a dev board that has gigabit ethernet and wifi for ...
4
votes
0answers
11 views

With Nest camera, is there a way to completely disable event generation for a zone?

Is there a way to make a given area of the camera view generate no events, not even those that show up in the timeline? I have set up zones for the areas of interest to me, but I continue to get ...
2
votes
1answer
36 views

Controlling electric heater by thermostat (IFTTT, Alexa, Google Home)

i want to control electric heater (connected to electricity socket) by using WiFi smart plug. What kind of thermostat (which device) i need to connect to my 'smart network' so i can create a rule to ...
3
votes
1answer
38 views

Hassio won't connect dhcp

My home assistant setup died apparently due to a dead SD card so I downloaded the whole image, burned to a new card, and bought an RPi4 to load it up on. It seems to work fine (I can see the HASSIO ...

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