Internet of Things Stack Exchange
Internet of Things Stack Exchange

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1500 questions
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How to process the MQTT queue once?

I am developing a helper app to clean the retained messages on my Mosquitto MQTT service. The problem I have is how to process the queue once with Paho MQTT. I know how to block the thread (loop_forever()) query the queue asynchronously…
WoJ
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What IR codes are emitted by Faber/AEG/Franke/Smeg... RC?

What infra-red codes are emitted by the depicted* remote control used by many hood manufactures (Faber/Mepamsa, AEG, Franke, Smeg, Airlux...)? Identifying the manufacturer of the remote control / IR chip could be enough. It could be listed in lirc,…
Jan Molnár
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Does events batch count as single or multiple events in Azure's Event Hubs/IoT Hub

Azure Event Hubs and IoT Hub services allows sending messages in batch to optimize sending. Say I am batching 10 messages, will it count as 10 messages or 1 message for billing?
Ingweland
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Call AWS Lambda https end point from AWS IoT rules Engine

We have an existing ASP.Net Core API that we deployed in AWS Lambda. We were able to access the https verbs using AWS Serverless URL Now we would like to access a specific https end point through AWS IoT rules Engine, basically invoke the AWS…
siv
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How to handle AWS IoT with a Raspberry Pi to connect to my Node.js API?

I created an API in Node.js to connect my iOS app to my database. In my app, I have a button to start an action which will be connected to my Raspberry Pi. This action will happened after verifications in my database. I don't know what I should use…
cusmar
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Using AWS Lambda function to create a monitoring website for IoT devices

I want to create a web site to monitor my IoT devices, so I went through many tutorials to achieve that. The most common way that is used in the tutorials is writing to DynamoDB from IoT then using Lambda to invoke the data from DynamoDB to Lambda…
Balsam Qassem
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Program with MQTT hanging after starting, LDR processing is not working with no MQTT messages

I am trying to connect the LDR sensor to IoT by using GPIO pins (pin 4) of Raspberry Pi kit and publish MQTT messages. I am using a laser as a transmitter and the LDR sensor as a receiver, the output signal from LDR sensor is (0 or 1), if something…
Balsam Qassem
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1 answer

Cannot publish AWS IoT messages from Raspberry Pi

I run a simple publish message from a Raspberry Pi. It seems that my device is connected to AWS IoT, but the message is not publishing and the on_connect and on_publish methods are not invoking. Can anyone help figure out…
amit banik
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Why can I connect to Wi-Fi with 2nd gen Amazon IoT button but not 1st gen buttons?

I have three Amazon IoT buttons. One is model JK29LP (2nd gen) and two are model JK76PL (1st gen). I had the mac addresses for all three buttons whitelisted for our local Wi-Fi network. I was able to set up my 2nd gen button from the AWS mobile app…
DanHam
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Is there any surveillance camera that supports UDP broadcast upon motion detection?

I use EventGhost as my IoT hub. The easiest way for me to hook it up with a surveillance cam is UDP broadcast. So my question: Is there any surveillance camera that supports UDP broadcast upon motion detection?
Xdakut Wizzlekrank
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Recommendation to choose API development open source Language, Framework and Database

I'm working in a IoT project and my role is to provide APIs to allow devices to communicate with server/database. I have decided to use MySql for relational data like user details etc.. and MongoDb for other data like device data (Multi tenant…
Shri
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How to transmit binary data over CIP using AT commands?

I'm trying to transmit binary data using Ai-Thinker A6 GPRS module.The problem is that it does not support the AT+CIPSEND=[length] command (looks like a firmware bug). If you use a simple AT+CIPSEND command without length, CTRL-Z (also as a zero…
sleeply4cat
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Secure EEPROM Reading from Another Device

We are working on some Embedded device (Tag, the Tag hardware is: MCU, external EEPROM, Temperature and Humidity sensors) that collects temperature and humidity, the Tag save the samples in the EEPROM, the connection between the MCU and the EEPROM…
user5742600
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FitBit integration with Alexa; Play music when waking up

I m trying to integrate my Fitbit with my Amazon Echo. My goal is to make my Echo play music when I wake up in the morning. Is it possible to send a notification (or alert) via Bluetooth to my phone or Echo directly from my phone at the moment I…
GMedi
4
votes
1 answer

What will the Apple HomePod be able to do?

A friend told me that Apple is finally releasing a competitor for the Google Home and the Amazon Echo, called the Apple Homepod. A lively discussion ensued, in which several people were quite certain that the Apple Homepod has far fewer features…
anonymous2
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