Internet of Things Stack Exchange
Internet of Things Stack Exchange

Most Popular

more tags
1500 questions
14
votes
3 answers

Is there a standardized RPC mechanism for MQTT?

Over on Stack Overflow there is a question about implementing request/response interaction over MQTT. As one answer notes, you can do it by publishing the request on one topic and listening for the response on another token that was included in the…
Chris Steinbach
  • 734
  • 4
  • 13
14
votes
2 answers

ESP8266 Mesh Network Root Node

I am working on a mesh network based on ESP8266 and it all seems to be working fine using sample code from EasyMesh by Coopdis. In his/her example, 3 ESP8266's enroll in the mesh and serves a simple web interface. This is working perfectly for me…
Gineer
  • 409
  • 3
  • 12
14
votes
3 answers

A WiFi smart light switch with cloud API?

I need some suggestion for a WiFi based smart light switch that can be remotely controlled and has an open API. WeMo light switch doesn't have open remote API. Same with another popular TP-Link HS200. Most other remote controlled switches I found…
rajendra
  • 251
  • 2
  • 4
14
votes
1 answer

Contacting Arduino through internet without port forward

I have an Arduino board connected to a Wifi network which have internet access. What I want is, I need to contact this Arduino board from any other network without the help of port forwarding in the home network of Arduino. Currently what I am doing…
Jithesh Kt
  • 241
  • 1
  • 6
14
votes
2 answers

Which IoT platform should I use for low-energy temperature sensors to be powered by battery?

I'd like to setup two temperature detectors: one outside and one inside my house, in order to compare temperature and act on the difference (opening/closing the window for example). The issue I'm facing is which platform to take. My initial thought…
Cyril N.
  • 363
  • 1
  • 6
14
votes
2 answers

Data generated from smart bulbs?

I'm trying to answer 2 questions mainly: What kinds of data are generated from 1 branch of IoT devices namely smart bulbs/smart lighting? How can we visualize the data generated by the same? I searched online specifically on the same but could…
gireesh4manu
  • 151
  • 4
14
votes
1 answer

How does one capture the recognised text from Echo?

I know that some skills can capture spoken text, such as when adding to to-do lists and shopping lists, and third party skills can also do this, eg. SMS with Molly. So, how do they do this? Is there an API call that captures the recognized text and…
Graham Chiu
  • 243
  • 2
  • 6
14
votes
1 answer

How does an Azure IoT Hub interact with Embedded/IoT devices?

I am working on the Azure IoT platform, and I understand how devices send data to the IoT hub (if I am not wrong, It is just web service call or something similar to that). But I wonder how the IoT hub sends Data/Command/Input to the devices,…
Shri
  • 341
  • 1
  • 10
14
votes
3 answers

Speed limitations on moving sensors

After I watched this video of the docking scene in Interstellar sweded using a light bulb and a fan, I was thinking: Are there speed limitations with moving sensors, such as measuring a spinning wheel for example? I know that phones can carry…
Goufalite
  • 3,776
  • 17
  • 33
14
votes
4 answers

Is it a bad practice to keep certificates on external memory?

We're working on AWS-IoT using an STM32 microcontroller. Till today, we were writing the certificates to the flash and locking the flash from external reading. As the application code increases, we're getting lesser space on the flash so we were…
user2967920
  • 245
  • 2
  • 7
13
votes
4 answers

How does an experienced developer get started with IoT

I'm an experienced developer using variety of technologies as well as real time. I want to learn how to develop for a device which is not a computer, tablet, or any of the familiar devices everybody knows about. I noticed that global shopping sites…
TheUnreal
  • 255
  • 1
  • 5
13
votes
6 answers

Are there any IoT outdoor lighting sensors?

I have been looking for an ambient light sensor to use with other IoT smart home devices. In my opinion this would be a commonly requested device for controlling internal lighting. For example if you had smart lighting, you may want to turn the…
ngless
  • 171
  • 1
  • 8
13
votes
1 answer

Are Samsung's "S Health" devices storing health data in the cloud?

Samsung wearables like the Gear watches can run the Android app S Health are advertised to be quite secure and can be run by using the Samsung Knox security feature which is in itself advertised as certified by government agencies and so…
Helmar
  • 8,450
  • 6
  • 36
  • 84
13
votes
1 answer

Rearrange Z-Wave network

I bought a Z-Wave E27 light bulb to command a lamp from my PC for specific alerts. Obviously I had to plug it into the outlet to include it into the Z-wave network. During a few minutes it worked : I could command it on and off. But later, commands…
Goufalite
  • 3,776
  • 17
  • 33
13
votes
1 answer

Reusing / recycling a Petzi Treat Camera?

A few years ago I helped crowdfund a Petzi Treat Camera to feed my pet. Due to a broadcast pushed firmware update that I missed, it was rendered unusable. Thankfully, they did however send me a replacement unit but I am now left with a second…
Zeitsperre
  • 905
  • 6
  • 23
1 2 3
…
99 100