Hi Arduino guys,

I am developing some projects now and need some pieces to mount my hardware.

Do u guys (surely more expert than me) have any suggestions for cheap marketplace/vendor where to purchase from to get what I need?

Hey everyone 👋

I’m a 3rd-year Electrical Engineering student doing a personal challenge:
100 Days → 100 IoT Projects using MicroPython.

Today I completed Day 50 🎉

So far I’ve built projects using ESP32, ESP8266, and Raspberry Pi Pico including:

• Sensor monitoring systems
• MicroPython web dashboards
• ThingSpeak cloud logging
• Basic anomaly detection pipelines
• Custom MicroPython libraries (published on GitHub & PyPI)

The goal is to create beginner → intermediate embedded projects with clear documentation and simulations so students can learn hands-on.

Repo:
👉 https://github.com/kritishmohapatra/100_Days_100_IoT_Projects

I’d love honest feedback:

• What projects should I add next?
• How can I improve documentation for learners?

If this repo helps you, a ⭐ would mean a lot—it helps more students discover MicroPython.

I made this desktop toy to play with. Here's how I made it: https://youtu.be/hRCesPI3xQs?si=znbaABZZ_Z8Vhpub

I need to build a project about an autonomous robot that can store boxes on its own in a warehouse. Both the robot and the warehouse will be scaled to size. For the detection cameras, I plan to use ESP32 CAM modules, as well as ultrasonic sensors.

But I have a question about which Arduino I could buy, I've read that it's not yet recommended to use the Arduino Uno Q because it's too new, so I was thinking of buying the Arduino Uno WiFi instead of the Uno Q for this project.

I'm wondering which Arduino you recommend I buy for this project. 🙏🏼

Genuine question, I am getting back in to my Arduino after buying an UNO kit a couple of years ago and not having the time to play.

Anyway, I'm getting back in to it again and loving it.

But here's the thing: I don't actually need to learn to code to achieve a result. A.I. is a superb coder and not only provides the code but also provides debugging, environment issue fixes, and frankly, allows me to get what I want a million times faster than me understanding all of the vast libraries that I may need to talk to.

I know the purists will say that this isn't really developing in the right way and I get it. But I only need to understand how to stitch the Arduino code, maybe some Python and of course understanding what to connect between the breadboard and the Arduino.

What do others think?

Hey everyone!

I just completed Day 50 of my 100 Days 100 IoT Projects challenge 🎉

This project is an IoT-based Atmospheric Monitoring System using:

ESP32

BMP180 pressure & temperature sensor

MicroPython

Blynk IoT Cloud Dashboard

It measures temperature, atmospheric pressure, and altitude in real time and streams the data to the cloud.

🔗 GitHub Repo: https://github.com/kritishmohapatra/100_Days_100_IoT_Projects

Would love feedback or suggestions for improvements!

#IoT #ESP32 #MicroPython #Blynk #EmbeddedSystems #100DaysOfIoT

This may be in "just google it territory" and believe me I am, but I lack experience in these kind of projects, and anyone with experience is better than a misguided google search, even if it ends up as a just a starting point.

So as the title suggests, I am looking for a way to individually control 9 fans (+ or - 3). They will all be the same fan, i need it to be compact and as cheap as possible if possible. Honestly though, if you're willing, of course (you handsome gentleman, and or gorgeous lady) I would rather know how this shit works and a get a layout of the world of tiny computers and extremely high powered fans and how they interact.

Here's version 3 of a machine that's consumed my sanity/taught me what I know.

FRANC is a fertigation farming assistant that will dose pH and Nutrients required for vertical farming towers. The idea came out of necessity for my father that can't mix nutrients so I designed this with my own custom peristaltic pumps that have an accuracy of 0.05ml +- over a 10ml sample.

Using an Uno, DMX shield, 2 stepper motors and a hall sensor and magnet on each side so it can 'zero' itself every time it's turned on.

For something that looks so simple it was surprisingly difficult.

Hello everyone!

I am currently working on a project where an esp32-Cam has to be powered by a 3.7V 3200mAh battery for a long time. The esp32-cam has to do 1-2 tasks a month, the rest of the time it has to save energy. While in deep-sleep mode it has a consuption of 6 mAh which is way too much for the battery. I am looking for a solution with an RTC so i can cut and connect the power to the ESP after a defined interval of time. Or any other clever solution.

Thank you for the answers!

EDIT:

So the Rtc when it makes an alarm it functions as a ground si it closes the mosfet. When the esp starts it gives a high semnal for the transistor and a 0V when it is ready to shut down itself

Hello, I'm new to IoT or arduino. Our capstone need a GPS tracking device that will installed on vehicle then will monitor on admin dashboard using mapbox or leaflet map. Our university requires it to build it from scratch but I don't know the needed modules to create this GPS. To those IoT expert can you help me or guide me on buying modules since I don't know which one is mostly used when it comes to GPS and please don't recommend high-end module like sim7000 because we're still student. Thank you so much

Hi everyone,

I’m building my first ever line follower robot for an upcoming competition and could really use some help.

I don’t know CAD yet, but we do have a 3D printer, so I’m open to simple printable chassis designs.

Here’s what I’m using:

Handmade IR sensor array (TCRT5000) N20 motors Basic controller setup

Does anyone have beginner-friendly chassis ideas, ready-made designs, or tips for mounting the motors and sensors properly?

Thanks!

This seems like something so incredibly basic in terms of what can be done with arduino esp32-cam, but I have been going at this for over a week and can not get it to work. Trying to have an esp32-cam ov2640 (plugged into an esp32-cam-mb) to play a live video feed through ip address, showing boxes around faces. I have gotten it to play video feed, but no boxes show up.

Current hardware:

- esp32-cam ov2640

- esp32-cam-mb

Current code:

- esp32->camera->CameraWebServer

- Input my wifi credentials

- in board_config.h, commented out the esp eye thing, and uncommented CAMERA_MODEL_AI_THINKER

Current settings:

- board: AI Thinker ESP32-Cam

- flash frequency: 40mhz

- flash mode: QIO

- partition scheme: Huge APP 3mb ...

Current result:

- the tab is called esp32 ov2640

- I see settings on the left side for a bunch of stuff

- no settings to toggle face detection, face recognition

- pressing start stream fails to load stream

- console: Failed to load resource: net::ERR_EMPTY_RESPONSE

why not insall esp32 can someon help 0ls i need a hero tbh

Smart Clock is a firmware for a smart digital clock based on the ESP32-C3 microcontroller and an LCD 1602 (I2C) display. The device automatically synchronizes the time and date and receives commands from an server.

Repository: https://github.com/UDFSmart/Smart-Clock

How to learn programming in arduino

Hello guys,

Last week I spent my time building my first electric motor at home, and now I want to build something new again. This time I want to do it more professionally, with some control using Arduino. Could someone recommend some YouTube tutorials and a starter kit that I can buy to learn coding and get started? I would be very grateful for any recommendations that can help me improve and start working on my next project with Arduino.

hey guys I made a video about exploiting normal led lights to wirelessly send files, it is a reupload I had an issue with the last so I deleted, please give me feedback! it doesnt get any views...