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Internet of Things

Questions tagged [arduino]

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For questions related to the IoT applications that use Arduino. If question is about software or hardware issue with Arduino, consider whether asking it at Arduino Stack Exchange would be more appropriate.

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I am working on a project where I need to set the alarm on a DS3231 to wake an ESP32 at a specified time. In my workflow, I upload three scripts: one to set the time on the DS3231, one to set the ...
David Wit's user avatar
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I am implementing BLE with a HM-10 connected to an arduino UNO. I have encountered an issue where attempting to add another characteristic results in the overwrite of the first one, leaving me with ...
Giorgi Datunaishvili's user avatar
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Trying to design some secure firmware here and running into a brick wall regarding the use of crypto-chips. We are considering using this one here: https://www.microchip.com/en-us/product/ATECC608B. ...
Mike's user avatar
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I am fairly new to IoT and to all kinds of Arduino chips/sensors etc.. I am trying to understand the mechanism of LoRa device communication. With the help of the official Arduino web page I found the ...
dimitar.d's user avatar
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I am working in an Arduino project in visual studio. I need to get and set time to a RTC clock. That's why I am adding a ds3231 header file in my project from GitHub. When I want to build "it's ...
Iqbal Hossain's user avatar
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What I am trying to do I have an ESP32-CAM, and I want to use Visual Studio Code, I already used the Arduino IDE at first, and it worked fine. To work with the ESP32 on VS Code I installed the ...
Gregory Boutte's user avatar
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I've setup a simple LoRaWAN network with a Seeeduino node and an RHF2S001 gateway module using a Raspberry pi 3. I'm working on a project where I need to setup an alternative algorithm to ADR (...
Newt97's user avatar
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I am setting up an Arduino to collect temperature and pressure data, and I want to broadcast that data via bluetooth. My question boils down to what allocated UUID is best for my characteristic, and I ...
helpful_rabbit's user avatar
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I have a NodeMCU board. I uploaded blink example for that board and I need to add another example project from the IDE. What happens to the 1st code example or blink example when 2nd code uploaded. Is ...
Savithu's user avatar
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The device connects to IOT cloud fine and transmits the data for days and sometimes even weeks, but then it will stop transmitting for apparently no reason. On the IOT cloud dashboard the device is ...
Kody Rogers's user avatar
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A couple of months ago I designed a board with an ESP32-WROOM-32D (M113DH3200PS3Q0). Now on the Espressif product selector page they say it's not recommended for new designs! Questions: What is the ...
Mark's user avatar
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I'm trying to add I2C sensors to my esp cam but it doesn't work in either way. I followed some tutorials about it and have working code but scanning the bus shows no devices. Here is the sketch: #...
smoczyna's user avatar
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For a long time I have had a simple question to which I can't find an answer which convinces me. Basically the title: when should I use a microcontroller, when should I use a microprocessor and when ...
Lleims's user avatar
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For a university project I need to have a couple of "things" that collect data and which we will then be able to view and manipulate. At the moment each of the devices will consist of a few ...
Joel's user avatar
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I am trying to monitor the grain temperature in 4 roughly 25ft grain bins. I currently am monitoring temperature in one 15ft bin with the AM 2302 sensor, and it appears to be working. I just made a ...
Kody Rogers's user avatar
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I want an internet connected host, such as a Raspberry Pi, to be able to write uploaded files to a directly-connected SD card, but I don't want it to be able to read the card. This is for protection ...
DatsunBing's user avatar
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I have some questions about a new Arduino project I'm starting: Since Vodafone (Italy in my case) is shutting down 3G in 2021 (keeping 2G/4G up apprently), is ARDUINO MKR GSM 1400 still valid in next ...
Gorgo's user avatar
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I am trying to search for anything to send my sensor data from Arduino + GSM SIM900A to a cloud server, preferably Firebase. Does anyone know how can I achieve this operation to Firebase or any other ...
Prateek Goyal's user avatar
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What I am trying to achieve is that I have an Arduino base which periodically uploads data to AWS IoT-Core. But I am looking for a way to store that data and make it accessible to my web application ...
Madhav Parikh's user avatar
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I push my sensor readings from product A, B, C, D to an online cloud provider. Then my customer (call him E) needs to access all these sensor readings and make a dashboard for his customer X, Y Z. ...
ProgrammerX's user avatar
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8 votes
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I am trying to send messages from my Arduino to my Raspberry pi. But I don't understand why the pi isn't receiving the messages. On the Arduino side I'm using an Arduino UNO with a Dragino Lora/GPS ...
metichi's user avatar
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92 views

I am mainly from software background with very very basic level of electronics/microcontroller knowledge. I recently did a small IoT project for moisture/temp detection following this tutorial At a ...
Fahad Najib's user avatar
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I am using a Particle Boron to integrate with a Smart lock but I am not being able to do it. I'm using Particle's BLE interface to connect to Bluetooth and start sending messages to the lock, and a ...
Mauricio's user avatar
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I am using esp-IDF library and esp32 for smart lighting. I want to maintain the state of the lights when power goes off as it can be written somewhere in NVS. Such implementation is available for ...
Learner's user avatar
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I've done almost everything to get the data from nodemcu but nothing happened. I tried by changing the fingerprint. I have also used project secret and copy it in FIREBASE_AUTH part. I also ...
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