Most viewed questions in IoT (Internet of Things)

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1 answer

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
• 8,620 points
17,855 views
+1 vote
2 answers

Which is not considered as iot application ?

smart subway READ MORE

Aug 28, 2020 in IoT (Internet of Things) by phyoe lay
17,598 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
• 3,130 points
14,988 views
0 votes
2 answers

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
• 8,240 points
10,148 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
9,247 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
• 8,240 points
7,659 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
6,696 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
• 13,490 points
6,329 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
• 13,490 points
6,070 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
• 8,620 points
5,976 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
5,821 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
• 3,130 points
5,611 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
• 8,240 points
5,144 views
0 votes
1 answer

I want to restrict the opening of Browser on URL Click

You can call it as a web ...READ MORE

Aug 7, 2018 in IoT (Internet of Things) by anonymous2
• 4,280 points
5,131 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
• 3,130 points
5,123 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
4,569 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
• 2,160 points
4,399 views
0 votes
1 answer

MQTT Maximum Message count / Maximum Topic count

Hello @ Dingsbums , The number of topics is going ...READ MORE

Jul 27, 2020 in IoT (Internet of Things) by Niroj
• 82,880 points
4,361 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
• 8,620 points
4,218 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
3,805 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
• 8,620 points
3,610 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
• 8,240 points
3,603 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
• 8,620 points
3,600 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
• 3,130 points
3,585 views
0 votes
1 answer

Problem while disconnecting BLE device!

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

Jul 18, 2018 in IoT (Internet of Things) by nirvana
• 3,130 points
3,555 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
3,525 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
• 13,490 points
3,378 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
• 13,490 points
3,351 views
0 votes
1 answer

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
• 8,620 points
3,220 views
0 votes
1 answer

How to detect presence of a device in a WiFi network?

Finding the mac-address would probably work. Basically, ...READ MORE

Nov 16, 2018 in IoT (Internet of Things) by Shubham
• 13,490 points
3,191 views
0 votes
1 answer

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

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

Jul 18, 2018 in IoT (Internet of Things) by DataKing99
• 8,240 points
3,174 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
• 8,620 points
3,135 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 6, 2018 in IoT (Internet of Things) by nirvana
• 3,130 points
3,102 views
0 votes
1 answer

Accessing Kinect data on the Raspberry Pi

Yes, you can. The Kinect has a ...READ MORE

Aug 14, 2018 in IoT (Internet of Things) by nirvana
• 3,130 points
3,083 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
• 8,620 points
3,039 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
• 8,620 points
3,037 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
• 3,130 points
3,010 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 2,909 views
0 votes
1 answer

Choosing Domain Name for IoT Device

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

Sep 27, 2018 in IoT (Internet of Things) by anonymous2
• 4,280 points
2,762 views
0 votes
1 answer

How safe is it to expose rabbitmq amqp port over the internet?

Talking about whether it is a good ...READ MORE

Nov 29, 2018 in IoT (Internet of Things) by Upasana
• 8,620 points
2,751 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
• 13,490 points
2,688 views
0 votes
1 answer

LoNet Mini GSM Module : sim800L gprs post request

Did you set up your PDP context ...READ MORE

Nov 16, 2018 in IoT (Internet of Things) by Shubham
• 13,490 points
2,673 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
• 8,620 points
2,623 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
2,540 views
0 votes
1 answer

Can i use ESP8266 as a network adapter?

With the Espressif SDK 1.5.2 for the ESP8266 it's not possible ...READ MORE

Sep 12, 2018 in IoT (Internet of Things) by Annie97
• 2,160 points
2,489 views
0 votes
1 answer

how can I send float value in url? I tried float values but I ended up getting Null values

You can use print() to send  it ...READ MORE

Aug 28, 2018 in IoT (Internet of Things) by Annie97
• 2,160 points
2,466 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
• 3,130 points
2,447 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
• 8,620 points
2,443 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
2,412 views
0 votes
1 answer

What is the size of CoAP packet?

It Depends: Core CoAP messages must be small enough ...READ MORE

Jul 17, 2018 in IoT (Internet of Things) by anonymous2
• 4,280 points
2,395 views