Most viewed questions in IoT (Internet of Things)

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Postman: Error “Unsupported Media Type” for send notification

Postman Check this link out. or maybe schemas any field ...READ MORE

Apr 29, 2019 in IoT (Internet of Things) by Upasana
• 8,590 points
6,290 views
0 votes
1 answer

Connect to external server through Socket.IO from Node.js

I think the server you're connecting to ...READ MORE

Nov 21, 2018 in IoT (Internet of Things) by nirvana
• 3,060 points
4,934 views
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1 answer

AttributeError: 'module' object has no attribute 'Serial'

I see where the problem is. I ...READ MORE

Aug 14, 2018 in IoT (Internet of Things) by DataKing99
• 8,150 points
3,571 views
0 votes
1 answer

What is the maximum message length for a MQTT broker?

It's not entirely clear what you're asking ...READ MORE

Jul 17, 2018 in IoT (Internet of Things) by anonymous2
• 4,280 points
3,529 views
0 votes
1 answer

Faster communication between two ESP8266 in client-server setup

Try following. Server loop void loop() { // ...READ MORE

Jul 13, 2018 in IoT (Internet of Things) by anonymous2
• 4,280 points
3,046 views
0 votes
1 answer

PWA : Using Bluetooth in my phone in Progressive Web Apps

Yes, you can access in Geo Location(for ...READ MORE

Dec 20, 2018 in IoT (Internet of Things) by Shubham
• 13,380 points
2,204 views
0 votes
1 answer

"message": "Credential should be scoped to correct service." - AWS IoT

You should sign your request with iotdata ...READ MORE

Oct 9, 2018 in IoT (Internet of Things) by DataKing99
• 8,150 points
2,174 views
0 votes
1 answer

Postman : Generating an output as a random number

Try generating your random value in the ...READ MORE

Feb 12, 2019 in IoT (Internet of Things) by Upasana
• 8,590 points
2,150 views
0 votes
1 answer

How to send a data from arduino uno to a webpage through esp8266 wifi module?

You are missing a few \r\n and the length ...READ MORE

Aug 9, 2018 in IoT (Internet of Things) by anonymous2
• 4,280 points
2,150 views
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comparision between OPC UA protocol and MQTT protocol

This is the first time I'm seeing ...READ MORE

Sep 4, 2018 in IoT (Internet of Things) by Upasana
• 8,590 points
2,080 views
0 votes
1 answer

Mosquitto vs eclipse paho - Difference in both client libraries

I was stuck with the exact same ...READ MORE

Nov 22, 2018 in IoT (Internet of Things) by nirvana
• 3,060 points
1,731 views
0 votes
1 answer

How to trigger Python script on Raspberry Pi from Node-Red

Node-RED supplies an exec node as part ...READ MORE

Sep 14, 2018 in IoT (Internet of Things) by Upasana
• 8,590 points
1,670 views
0 votes
1 answer

Pair and connect new devices using Bluez5 DBUS API with C++

Although high-level APIs like Qt5, which also ...READ MORE

Oct 8, 2018 in IoT (Internet of Things) by nirvana
• 3,060 points
1,622 views
0 votes
1 answer

Error: Please ensure that target device has developer mode enabled. Could not obtain a developer license

That's because the XAML designer on Visual ...READ MORE

Sep 5, 2018 in IoT (Internet of Things) by nirvana
• 3,060 points
1,455 views
0 votes
1 answer

Spring Boot application freezes after a day

You can mitigate the idle connections problem ...READ MORE

Jul 26, 2018 in IoT (Internet of Things) by anonymous2
• 4,280 points
1,406 views
0 votes
1 answer

Transfer Data from Arduino Board to SQL Server

If you want to send it to ...READ MORE

Aug 29, 2018 in IoT (Internet of Things) by anonymous2
• 4,280 points
1,393 views
0 votes
1 answer

MQTT : Connection lost on MQTT subscriber to Internet of Things Server

An invalid topic "matteo" seems to be causing the ...READ MORE

Oct 3, 2018 in IoT (Internet of Things) by Annie97
• 2,200 points
1,371 views
0 votes
1 answer

Integrating Arduino to Apache Kafka

If you are using Arduino Yun to build your IoT application(s), ...READ MORE

Sep 27, 2018 in IoT (Internet of Things) by anonymous2
• 4,280 points
1,326 views
0 votes
1 answer

Where is published message stored by mosquitto broker if offline?

Well, of course, they are stored! That ...READ MORE

Aug 10, 2018 in IoT (Internet of Things) by nirvana
• 3,060 points
1,298 views
0 votes
1 answer

TRIM_HORIZON: AWS definition for DynamoDB Triggers (Streams + Lambda)

Here's what I found in the DynamoDB's ...READ MORE

Nov 15, 2018 in IoT (Internet of Things) by DataKing99
• 8,150 points
1,274 views
+1 vote
1 answer

Django and IoT

You can use any framework that fits ...READ MORE

Jan 23, 2019 in IoT (Internet of Things) by Upasana
• 8,590 points
1,248 views
0 votes
1 answer

Azure IoT Hub : Sending messages using Python via mqtt

The thing is that IoT Hub is not ...READ MORE

Jan 4, 2019 in IoT (Internet of Things) by Upasana
• 8,590 points
1,215 views
0 votes
1 answer

Integrate IoT device to Azure using MQTT

Today there isn't an official support for ...READ MORE

Sep 24, 2018 in IoT (Internet of Things) by anonymous2
• 4,280 points
1,155 views
0 votes
1 answer

Testing if messages from my Device is reaching the Azure IoT Hub?

Download the Device Explorer open source tool ...READ MORE

Aug 10, 2018 in IoT (Internet of Things) by DataKing99
• 8,150 points
1,145 views
0 votes
1 answer

MQTT and NodeJS Communication

Now the cloudmqtt and nodejs server is connected by giving extra ...READ MORE

Sep 25, 2018 in IoT (Internet of Things) by anonymous2
• 4,280 points
1,128 views
0 votes
1 answer

Problem while disconnecting BLE device!

I think that's because of the way ...READ MORE

Jul 17, 2018 in IoT (Internet of Things) by nirvana
• 3,060 points
1,106 views
0 votes
1 answer

How to deploy Windows 10 IoT (Rasp Pi image) as a Virtual Machine

The easiest way I found is downloading ...READ MORE

Sep 10, 2018 in IoT (Internet of Things) by Upasana
• 8,590 points
1,102 views
0 votes
1 answer

Using Google Maps to track GPS enabled Arduino Board

What is the GPS Module which you ...READ MORE

Sep 6, 2018 in IoT (Internet of Things) by anonymous2
• 4,280 points
1,081 views
+1 vote
1 answer

How to get percentage value of different gases using the MQ135 gas sensor

I don't think the MQ135 can do ...READ MORE

Aug 23, 2018 in IoT (Internet of Things) by Upasana
• 8,590 points
1,076 views
0 votes
1 answer

MQTT pubish is slow to send with ESP8266 & NodeMCU

I think you're almost correct and on ...READ MORE

Aug 1, 2018 in IoT (Internet of Things) by nirvana
• 3,060 points
1,066 views
0 votes
1 answer

Eclipse Paho: read data from MQTT Broker

From what I could analyze, you've been ...READ MORE

Aug 8, 2018 in IoT (Internet of Things) by DataKing99
• 8,150 points
1,021 views
0 votes
1 answer

MQTT protocol connection error

Ok so you need two libraries to ...READ MORE

Jul 6, 2018 in IoT (Internet of Things) by anonymous2
• 4,280 points

reshown Jul 6, 2018 by Vardhan 990 views
+1 vote
1 answer

RegEx to remove XML tags and their content

I presume you want to drop the ...READ MORE

Feb 13, 2019 in IoT (Internet of Things) by Shubham
• 13,380 points
978 views
0 votes
1 answer

Using Sleep()/Delay() in C# on Windows IoT

You'll be glad to know that C# ...READ MORE

Aug 28, 2018 in IoT (Internet of Things) by DataKing99
• 8,150 points
957 views
0 votes
1 answer

Certificate issue in Azure IoT Hub

I've fixed this problem: The configured CA certificate ...READ MORE

Oct 11, 2018 in IoT (Internet of Things) by anonymous2
• 4,280 points
933 views
0 votes
1 answer

Sending CoAP requests using Python

It can be done using a library ...READ MORE

Aug 24, 2018 in IoT (Internet of Things) by nirvana
• 3,060 points
924 views
0 votes
1 answer

Connection and publishing operations using paho-mqtt not working on AWS IoT

I'd say your issue is mainly that ...READ MORE

Mar 11, 2019 in IoT (Internet of Things) by Upasana
• 8,590 points
910 views
0 votes
1 answer

NodeMCU HTTP : How to use HTTPS post request?

Your firmware might not have SSL/TLS enabled. ...READ MORE

Feb 11, 2019 in IoT (Internet of Things) by Shubham
• 13,380 points
907 views
0 votes
1 answer

Arguments in boto3 AWS client

As long as you're explicitly providing credential ...READ MORE

Feb 11, 2019 in IoT (Internet of Things) by Shubham
• 13,380 points
901 views
0 votes
1 answer

USB Mobile Broadband Modem on Windows 10 IoT

I was looking for a solution too, ...READ MORE

Jul 9, 2018 in IoT (Internet of Things) by anonymous2
• 4,280 points
868 views
0 votes
1 answer

Choosing Domain Name for IoT Device

Yes, I would avoid revealing an 'internal' ...READ MORE

Sep 26, 2018 in IoT (Internet of Things) by anonymous2
• 4,280 points
823 views
0 votes
1 answer

Sending data to a page using the ESP8266-01 wifi-module from Arduino

Well, I think there are some \r ...READ MORE

Aug 9, 2018 in IoT (Internet of Things) by nirvana
• 3,060 points
812 views
0 votes
1 answer

TCP in Azure IoT Hub

The default Protocol Gateway samples are indeed ...READ MORE

Oct 11, 2018 in IoT (Internet of Things) by DataKing99
• 8,150 points
780 views
0 votes
1 answer

Mosquitto broker- Horizontally scaling

For accuracy, let me mention that other ...READ MORE

Sep 5, 2018 in IoT (Internet of Things) by Upasana
• 8,590 points
768 views
0 votes
1 answer

"MqttException (0) - java.io.IOException: Already connected"

Oh man, that was a heck of ...READ MORE

Jul 17, 2018 in IoT (Internet of Things) by DataKing99
• 8,150 points
743 views
0 votes
1 answer

How to use the data I receive from Azure IoT Hub?

The payload you receive will be a ...READ MORE

Aug 1, 2018 in IoT (Internet of Things) by DataKing99
• 8,150 points
738 views
0 votes
1 answer

Difference between MQTT and Apache- kafka

MQTT is a standard protocol (with many ...READ MORE

Aug 31, 2018 in IoT (Internet of Things) by Upasana
• 8,590 points
731 views
0 votes
1 answer

Downloading source code of Android Things

No because AndroidThings is still in preview ...READ MORE

Jul 5, 2018 in IoT (Internet of Things) by anonymous2
• 4,280 points
714 views
0 votes
1 answer

Failure of JSON parsing in Arduino and ESP8266

I'm assuming it's because of the garbage ...READ MORE

Dec 24, 2018 in IoT (Internet of Things) by Upasana
• 8,590 points
712 views
0 votes
1 answer

MQTT : Web Socket in python

You can simply create a configuration file ...READ MORE

Apr 15, 2019 in IoT (Internet of Things) by Shubham
• 13,380 points
688 views