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Questions tagged [iot]

QUESTIONS MUST BE PROGRAMMING RELATED.. Use a more specific tag for your question instead, e.g. [wifi], [bluetooth], [c], [arduino]

The Internet of Things (IoT) is a novel paradigm where many of the objects that surround us will be connected to the Internet, these objects can be Radio-Frequency IDentification (RFID) tags, sensors, actuators, mobile phones, etc. and through unique addressing scheme, are able to interact with each other and cooperate with their neighbors to reach common goals.

While programming questions about Internet of Things are on-topic here, other questions should be asked on the new Internet of Things Stack Exchange site.

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If the question is not programming related then it may be on-topic at Raspberry Pi Stack Exchange, Internet of Things Stack Exchange or Unix & Linux Stack Exchange.

3888 questions
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MQTT broker in Azure cloud

I have a backend device with MQTT client connected to opensource MQTT broker (Mosquitto). On the other hand I have many frontend devices (PC, Tablet, Mobile) with GUI application also connected to the broker. So here Mosquitto works as a…
kappa
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On-screen keyboard in Windows Universal App on Windows IoT?

Is it possible to show the On-Screen Keyboard (osk) in a Windows Universal App on Windows 10 IoT Core? The raspberry pi only has a mouse attached and when I click on a textbox I'd like to show the osk. I can set the InputScope and…
juFo
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How to trigger Python script on Raspberry Pi from Node-Red

I'm using Node-Red, hosted on a Raspberry Pi for an IoT project. How do I trigger a Python script that is on the raspi from Node-Red? I want to run a script that updates the text on an Adafruit LCD shield which is sitting on the Pi Should I be…
pronoob
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How can I get an interactive login with Windows 10 IoT Core running on a Raspberry Pi?

I just installed Windows 10 onto a Raspberry Pi. It started up fine and I can connect (using PowerShell) from my laptop. I can connect a keyboard and mouse to the Pi but I can't get a login window. All that I can do is change the timezone and…
yamspog
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Windows 10 IoT Raspberry Pi 2: Autostart published Application

I'm starting making experience with the Raspberry Pi 2 Development with Windows 10 and I was wondering how can I configurate the Raspberry Pi 2 to autostart my own published application, I developed in Visual Studio? And furthermore: How can I set…
Tobias Raphael Dieckmann
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CoAP and DTLS integration

I have implementation of CoAP (libcoap), and implementation of DTLS (tinyDTLS). How can I make integration CoAP (libcoap) with DTLS (tinyDTLS)? I will be grateful for the any advice.
Puzzle
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Synchronize Data From Multiple Data Sources

Our team is trying to build a predictive maintenance system whose task is to look at a set of events and predict whether these events depict a set of known anomalies or not. We are at the design phase and the current system design is as…
sgarizvi
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Azure IoT Edge vs Protocol Gateway (IoT Hub)

Our existing IoT Platform uses Azure Protocol Gateway and is working well. I just realized that MS Azure has launched a newer version for Protocol Gateway called IoT Edge. I was just looking for the new feature available in IoT Edge and now I'm…
DSA
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AWS IoT Android application over MQTT throws MqttException (0) - java.io.IOException: Already connected

I am trying to use 'Authenticate using Cognito-Identity with Cognito user pool' in my Android application. My Cognito user pool authentication works well, when I run that separately and I had seen a JWTToken as well. When I run the the 'PubSub'…
Shibin Francis
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Exception: The speech privacy policy was not accepted prior to attempting a speech recognition

From where do I have to accept the speech recognition policy? Here is the code public async void display() { SpeechRecognizer rec = new SpeechRecognizer(); await rec.CompileConstraintsAsync(); rec.Timeouts.InitialSilenceTimeout =…
Gagan lohia
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ESP8266 Micropython - connecting to University Wi-fi ( WPA2 Enterprise PEAP )

I have a board with an ESP8266 chip running Micropython firmware v1.8.7. My requirement is to use WebREPL via the University Wi-Fi, which uses WPA2 Enterprise EAP-MSCHAPv2 authentication. My Google-fu so far has informed me that Arduino users have…
Udu
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MQTT over websocket in python

is there any support in python to subscribe on mqtt broker with port 8080 import sys import paho.mqtt.client as mqtt def on_connect(mqttc, obj, flags, rc): print("rc: "+str(rc)) def on_message(mqttc, obj, msg): print(msg.topic+"…
Smit Gardhariya
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How to enforce the order of messages passed to an IoT device over MQTT via a cloud-based system (API design issue)

Suppose I have an IoT device which I'm about to control (lets say switch on/off) and monitor (e.g. collect temperature readings). It seems MQTT could be the right fit. I could publish messages to the device to control it and the device could publish…
Adam Romanek
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Bridge Wifi to Raspberry Pi using Ethernet Cable

I am not finding this question in SF history, which was a surprise, so I'll go ahead and ask it. I am working on an IoT Raspberry Pi project with Windows 10 and need to connect it to the internet via an Ethernet/USB adapter. The adapter itself is…
David Crook
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Push sensor data from arduino to apache kafka server directly.

I am new to Internet Of things. I have pushed temperature data to mosquito server and successfully consumed all data. Now I want to push data from arduino to kafka server and consume from kafka. Is there any kafka library for arduino? What…
user3313379
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