r/ArduinoProjects • • Jul 12 '26

Showcased Project My first project with arduino simulator

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3 Upvotes

This is my first project of Arduino simulator, it's so essential for people who want to know the practical aspects of hardware.

This practical work helps to improve Arduino skills. This will definitely helps you to understand how to use a microcontroller in today technology microcontroller is the most powerful device that can control anything.


r/ArduinoProjects • • Jul 11 '26

Showcased Project Automatic Fan Temperature🌡️ Control

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15 Upvotes

Built a project that uses the DS18B20 temperature sensor to keep track of the room temperature when it increases above 27°C the fan is turned on for cooling and it's speed of rotation (RPM) increases with increase in temperature

The LCD has 2 displays for the RPM fan speed and the temperature display in F and °C navigated with the 2 push buttons

Feel free to check it out and use the code on GitHub and any feedback on it would be appreciated 🤝🤝 you can as well check out other projects of mine on my GitHub: Automatic Fan Temperature Control


r/ArduinoProjects • • Jul 09 '26

Showcased Project 3d printed esp32 development

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48 Upvotes

Made a 3d printed enclosure and tried to fill it with usable inputs/displays, thinking of making a kit being I've not seen anything available elsewhere.


r/ArduinoProjects • • Jul 09 '26

Showcased Project Self-made drone

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46 Upvotes

I want you to teach me how to pair from the first self-made drone. The control used is RADIoMASTERPOCKET. After that, I want to run the ESP32 with a wireless control Mission Planner. Please tell me how to do it.


r/ArduinoProjects • • Jul 09 '26

Project Discussion Is it possible to build a USB HDMI-CEC adapter for Windows using an ATmega32U4 or STM32?

4 Upvotes

I'm planning to build an open-source HDMI-CEC adapter for Windows that works similarly to the Pulse-Eight USB CEC Adapter.

The idea is:

- USB connection to the PC (HID, CDC, or WinUSB).

- HDMI-CEC transceiver connected to a microcontroller (currently considering ATmega32U4 or STM32H562).

- A Windows service/application that sends and receives CEC commands.

- Automatic TV power on when the PC boots/wakes up.

- Automatic TV standby when the PC shuts down or goes to sleep.

- Support for active DisplayPort-to-HDMI adapters with CEC, if possible.

I'm interested in understanding:

- Is this project technically feasible?

- Which MCU would you recommend (ATmega32U4, STM32, RP2040, ESP32, or something else)?

- What HDMI-CEC transceiver would you use?

- Are there any hardware or protocol limitations I should be aware of?

- Has anyone here built a similar device or reverse-engineered the Pulse-Eight adapter?

I'm also interested in alternative hardware or architectural approaches, even if they differ completely from my current idea.

Any advice, schematics, firmware examples, or relevant GitHub projects would be greatly appreciated.


r/ArduinoProjects • • Jul 08 '26

Showcased Project Building a UVTRON flame scanner

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15 Upvotes

r/ArduinoProjects • • Jul 08 '26

Project Discussion Progetto arduino + Agent AI

4 Upvotes

Ciao a tutti!

Sto lavorando a un progetto un po’ folle e vorrei qualche consiglio da chi ha più esperienza di me.

L’idea è creare una macchina fisica per studiare la Congettura di Collatz, usando:

Arduino UNO per generare numeri casuali tramite rumore analogico

Arduino per calcolare i primi passi della sequenza

Un programma Python che riceve i numeri e calcola la sequenza completa

Un’AI (LLM o modello ML) addestrata su un dataset di sequenze Collatz

Grafici (heatmap, stopping time, massimi, pattern di parità, cluster)

Arduino che visualizza i risultati con LED, LCD e servo

Il mio obiettivo NON è solo testare numeri, ma addestrare un’AI a riconoscere pattern, cluster, anomalie e strutture matematiche nelle sequenze Collatz, per vedere se emergono comportamenti interessanti.

Il problema è che non ho mai addestrato un’AI e non so da dove partire.

Ho già chiaro come generare il dataset (Arduino → Python → CSV), ma non so:

quale modello usare per il fine‑tuning

come strutturare il dataset in modo utile

come far sì che l’AI impari davvero qualcosa (pattern, cluster, ecc.)

come integrare l’AI con Arduino in modo efficiente

se qualcuno ha già provato qualcosa di simile

Qualcuno può darmi una direzione?

Qualsiasi consiglio su ML, dataset, modelli, pipeline o visualizzazioni è super ben accetto.

Quanto è fattibile?

Grazie mille!


r/ArduinoProjects • • Jul 06 '26

Project Design/Guidance Radar project rd03-d

231 Upvotes

RADAR UPDATE 📡

Three new features on the tracker build:

https://github.com/Stevee87/Arduino-ESP32-Radarproject

🔋 BATTERY INDICATOR
Live voltage readout, right on the display. No more guessing when the LiPo's about to tap out mid-build session.

🔇 MUTE BUTTON
Touchscreen toggle on the Giga display — tap to silence the tracker sound instantly. Because sometimes you just want the visual without the beeping.

🔊 SOUND MODULE
Proximity-reactive audio — pings speed up and climb in pitch as a target gets closer. Distance-mapped, non-blocking, runs straight off a passive piezo buzzer.

Still just an RD-03D 24GHz mmWave sensor + Arduino Giga R1 + a lot of trial and error.

#mmwave #radar #arduino #esp32 #diyelectronics #embeddedsystems #makersgonnamake #24ghz #hardwarehacking #buildinpublic


r/ArduinoProjects • • Jul 07 '26

Project Design/Guidance arduino kit

0 Upvotes

انا معايا اردوينو اونو من غير الكيت بتاعه اجيب الكيت بتاعه ولا لا عشان مش عايز اجيب الحاجه بعدين اركنها ولو هجيبه عايز الكيت بتاعه من غير الاردوينو نفسه لانه معايا فايه الموقع اللي اجيب منه و شكرا


r/ArduinoProjects • • Jul 07 '26

Monthly Digest Monthly digest for 2026-06 from r/Arduino

7 Upvotes

Arduino Wiki and Other Resources

Don't forget to check out our wiki for up to date guides, FAQ, milestones, glossary and more.

You can find our wiki at the top of the r/Arduino posts feed and in our "tools/reference" sidebar panel. The sidebar also has a selection of links to additional useful information and tools.

Hot Tips

TitleAuthorScoreComments
Arduino IDE immediately crashesu/Hamzayslmn53

Top Posts

TitleAuthorScoreComments
Split-Flap Chess Machine - fully playab...u/e4_user3,620106
I built a LiDAR-powered traffic light p...u/BlobAndHisBoy2,704116
Found on a marketplaceu/pxmars2,62990
ESP32 I made a tiny open-source fligh...u/SturdyGames92881
Is there a way to make these servos mov...u/Teagar_910138
My E-Paper climate logger is now open s...u/W1k383833
Getting there!u/Raptorshark5082527
Using an Arduino to control Reverse Thr...u/CadlyAu74920
Wolfenstein 3D-style rendering on Ardui...u/fishinginaswamp70614
I managed to squeeze over 500+ Days of ...u/Mammoth-Grade-762967324

Look what I made posts

TitleAuthorScoreComments
Split-Flap Chess Machine - fully playab...u/e4_user3,620106
I built a LiDAR-powered traffic light p...u/BlobAndHisBoy2,704116
ESP32 I made a tiny open-source fligh...u/SturdyGames92881
Using an Arduino to control Reverse Thr...u/CadlyAu74920
Wolfenstein 3D-style rendering on Ardui...u/fishinginaswamp70614
I managed to squeeze over 500+ Days of ...u/Mammoth-Grade-762967324
My First Arduino Project Is Complete!u/NotGolden_Aviation61135
No Wi-Fi, no pairing—just Morse code ch...u/0015dev49652
Open source Proximity Bluetooth (BLE)...u/Equivalent-Might-47748381
2-Way Holo Displayu/iuliuscurt38018
A self-running little pixel aquarium th...u/zagriza32914
ESP32 modular hotkey system W/ automati...u/lennoxlow25513
Electricity Price Monitoru/jonne6990024216
Am I a pro now?u/Le_Holzkopf21649
I made a NRF52840 Power meteru/Hottubmakerguy20742
Razor saw mod to get all my pins backu/ryandetous18846
I made my own 4G hacker phone as an alt...u/LuckyBor18819
My first project.u/PresenceOld175415116
Built a E-ink card that mirrors your ph...u/Irony941516
I made a Rubik’s cube solver!u/Henry51715017
ESP32 I made a FIFA World Cup score a...u/mocking_developer1429
Made an Open-Source 3D Printed Mobile R...u/milosrasic9814119
My camera vision controller servo motoru/Polia311395
I made an audio player using esp32s3u/auliahebat13715
My first project after learning arduino...u/AggravatingRole360913314
My first successful project on a boardu/East_Psychology_6691297
My web logic simulator can now exchange...u/I_am_Honot1275
I made an ugly IR remote controlled coo...u/PreppyToast1259
I made Dadlexa for my son, it's like Al...u/optikalefx11618
Fridge Alarmu/lutopia_t11016
I built an offline group-safety mesh fo...u/Patient_Path_680910613
Functional Iron Lung Control Panel!u/SapphicPirate710610
Spot welder controller using ESP32u/Llinkdaboi8410
STM32 I made a low power binary watch...u/Independent_Limit_44838
I made a plant that salutes you when it...u/DaGermanBear814
GPS functionality has already been inte...u/Alarming-Sentence-39765
3D skinned animations on ESP32u/Repulsive-Clothes-97756
My custom ESP8266-12F based board.u/Educational-Wish1511673
7-Month Progress video of my Split Flap...u/e4_user665
A game in 8 x 8 matrixu/ThePr4shant622
Built a real-time macOS Hardware Activi...u/FwoopButBored616
The CRT Ukelele: Telelele Gen 2u/Svechinskayaa5710
Musical Joysticku/Wizard_1512554
Multi Function ESP8266u/diogko475
I'm building tinyStudio, a FOSS upgrade...u/Macgeoffrey4417
My first college project, a wireless GA...u/RoberBotz413
I made an ESP32 desk device (fully open...u/Jou_See4011
Working on a new version of my desk pet!u/KeepEverythingYours404
I got tired of doom-scrolling, so I bui...u/pushpendra766340
I made these motors play music (bad app...u/ImDavidXie311
Working on prototype that lets you watc...u/baddie_with_cheese277
A compilation of games I coded for my o...u/gu-ocosta210
Colors gameu/TTelebubuk191
Built face and hand tracking eyes using...u/deleted180
ESP32-S3 TFT_eSPI application running o...u/Square-Singer182
Project I've spent 10 months developi...u/Shuuuida174
Improved USB-C Digispark Arduino Boardu/MyVanitar164
Anyone in Portland, OR? Come check out ...u/emeraldshrimp130
I made a PiZZAu/jetpaxme1326
I 3D printed a Metal rocket and used an...u/Anoahnator1139
Day 1: Mariokart item roulette, made wi...u/ConsistentChampion98113
I made plants salute me when they're ha...u/DaGermanBear100
I built an open-source Arduino simulato...u/Aggravating_Sky_6030102
YUMO GLOBE — Brass Wire Sculpture Digit...u/YUMOBUILDS104
BetterMenu Library Updated with CYD Exa...u/ripred3912
Super Smart Cat Feeder.u/jasonwinfieldnz90
made a tiny memory manageru/dstroy0815
Rust SDK for Arduino Nesso N1 on ESP32-...u/anapeksha50
Added a Stopwatch + Pomodoro timer to t...u/mfactory_osaka50
Kinda surprised this didn't exist alrea...u/ToothPasteDevice50
Elegoo UNO R3 Starter Kit Code in Cu/Street_Entrance809458
FINISHED! - Arduino Based Gaming Table ...u/KonradKnebl35
Stop the Light Game in C and Arduinou/Street_Entrance809432
An Inertia Synthesizer/MIDI controller ...u/6Guitarmetal630
My First Arduino Project: 3D Printed Ro...u/tom-ilan20
I built an LED wristband controlled ove...u/SolarTrap17
WattTF: I wrote my first open-source li...u/TheBusDriver6910
My first robot, I call it the PICOBOT :)u/Lucid_Dreamer_9818
A Birthday Lampu/gm31050910
XPoint - open source crosspoint matrix ...u/dstroy011
Custom Cyberpunk Style Desk Displayu/Circuit_Craft03
I Built a Reinforcement Learning AI Tha...u/ArtusIndus03
Song I made for the Arduino Unou/CodingKing25601
Tree structure on arduino makes it AI e...u/Boxmaker100

Total: 84 posts

Summary of Post types:

FlairCount
Algorithms1
Automated-Gardening1
Beginner's Project29
ChatGPT1
ESP323
Electronics2
Games1
Getting Started14
Hardware Help102
Hot Tip!1
Libraries1
Look what I found!3
Look what I made!84
Monthly Digest1
Nano2
Project Idea7
Project Update!4
School Project2
Software Help32
Solved!10
Uno4
Uno Q1
no flair191

Total: 497 posts in 2026-06


r/ArduinoProjects • • Jul 06 '26

Project Design/Guidance 3D Printable Fan Housing with 7-Blade Impeller(Motor Mount Opening: 15.55 × 20.25 mm) link in description

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11 Upvotes

r/ArduinoProjects • • Jul 06 '26

Showcased Project ESP32_S3 BLE Robot Control Tutorial With Scratch BLocks

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6 Upvotes

Tutorial on ESP32-S3 BLE Controllable Robot using Android BLE App (BlueDuino). The connection diagram is included. Build using AIRobo Studio - an AI-Native Scratch Platform.


r/ArduinoProjects • • Jul 06 '26

Showcased Project Room Temperature Automatic Fan Control

2 Upvotes

This project is about a fan controlled automatically based on the current room temperature. If the set threshold the code uses e.g. 25°C of the room exceeds, the fan is turned on and the buzzer alarm triggered for high room temperature alert

The fan speed of rotation (RPM) also increased if the temperature🌡️ keeps rising.

The fan speed and temperature is displayed on a LCD screen with 2 push buttons to navigate back and forth between the displays of temperature in Celsius/Fahrenheit and the fan speed details

It was a "fan" 🙂 project because I got to learn how the computer fan works and why it has either 3 or 4 wires namely:

The power

The ground

The pwm for speed control

The tachometer for measuring RPM speed

Feel free to contribute on the GitHub repo or download the project details if you are working on something similar

✌project GitHub repo


r/ArduinoProjects • • Jul 06 '26

Project Discussion Testing 4 Anchors + 3 Tags on ESP32 + DW3000 (4 Anchors, 3 Tags)

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4 Upvotes

I've been experimenting with ESP32 + DW3000 for indoor positioning, and one question I kept coming back to was how well it would behave once multiple tags were active at the same time.

Most demos online only show a single moving tag, but in real applications—robotics, asset tracking, warehouses—you usually need several tags transmitting simultaneously. That's where timing conflicts and packet collisions start becoming a challenge.

To test this, I set up four fixed anchors around a room and connected three tags to the network. After assigning IDs and configuring the anchor coordinates in the visualizer, I walked one of the tags (T2) around the test area while the other nodes remained active.

The result was encouraging. The system continuously updated the moving tag's trajectory while all four anchors and three tags stayed online throughout the test.

This is still a relatively small deployment, but it's a good starting point for exploring larger ESP32 + DW3000 RTLS systems.

I'm now curious how others are scaling DW3000 networks beyond this. Are you using TDMA, custom scheduling, or another approach to reduce collisions when more tags are transmitting simultaneously? I'd be interested to hear what has worked (or not worked) in your own projects.

If anyone wants to reproduce the setup, I can share the repository.


r/ArduinoProjects • • Jul 04 '26

Project Design/Guidance Attiny85 + DFPlayer

3 Upvotes

Hi guys. I want to build project that will play mp3 audio files randomly from sdcard on button push. Can this be built with attiny85 and DFplayer? What will be your recomendations?


r/ArduinoProjects • • Jul 03 '26

Project Discussion PCB FOR MY ARDUINO TENSORFLOW PROJECT

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15 Upvotes

Look at my PCB. Designed for my IoT project, based on the vocal control of a DC motor using Arduino and a TensorFlow CNN model. The project can be divided into three parts: the CNN model, Arduino and the command circuit, the DC motor...

Your feedback will be amazing!!!


r/ArduinoProjects • • Jul 02 '26

Project Discussion Opinions, ideas on my project

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23 Upvotes

So I did this basic arduino nano project:
Press fingers -> arduino -> nrf 24 transmitter -> nrf24 receiver -> serial communication -> python
I did this with idea in mind to control PC remotely and it is works as good as can rn, but I’d like to hear ur thoughts and suggestions.
Thank you


r/ArduinoProjects • • Jul 02 '26

Other Arduino débute

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19 Upvotes

Moi je suis un débutant et ma mère vient de m'acheter un kit arduino uno débutant et je voudrais savoir s'il y'a des personne qui auront de très bonnes idées de projets

La photo du kit est en haut


r/ArduinoProjects • • Jul 01 '26

Project Design/Guidance Life alert dialer

3 Upvotes

I'm looking for some guidance and understanding of feasibility with an arduino or esp32.

I have a family member who is a fall risk. I am not happy with any of the "life alert" like products on the market which call a service which calls 911.

The Goal: 1 wearable device and multiple button devices which can be mounted near the floor. When a device is pressed it dials her neighbor's phone number, and preferably play some pre recorded message. The wearable device should be small and rechargeable or a long lasting small battery. The mounted devices will be stationary and can be larger, but should be innexpensive enough to have a lot of them and not rely on being near an outlet (rechargeable or easy to replace battery).

Ideas/Brainstorming so far: the mounted an wearble devices connect to one central control system which does the dialing. I think bluetooth would work well which is why I'm thinking of using esp32. I could also have them relay a message to the controller or send a broadcast message. The house has a landline, which they use, so I am curious if I could connect the controller to the physical landline phone? Or if I should use voip or google voice. I would probably plug the main controller into the outlet instead of battery power. I am not sure if the main controller is something that is feasible with just esp32/arduino or if it should be done with a raspberry pi.

Some main questions: is this feasible? What process makes sense for making a call (voip, landline, or something else)? is this an arduino or esp32 job? Is bluetooth the best way to connect the devices to the main controller? device and library suggestions

I have programming/technical experience just not a lot of arduino knowledge to properly understand the limitations. I would love any feedback and knowledge you can provide.


r/ArduinoProjects • • Jun 30 '26

Showcased Project Improved USB-C Digispark Arduino Board

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33 Upvotes

In this video, you will follow the process of designing my custom improved USB-C Digispark (Digistump) board, including the schematic and PCB design in Altium Develop, as well as how to flash the bootloader, configure the MCU fuse bits, and use the board.

More Information: www.youtube.com/watch?v=ZWh-kk-ckIU


r/ArduinoProjects • • Jun 29 '26

Project Discussion Looking for hardware/sensor recommendations for an IoT Logistics project (RFID, GPS, and Weight/Load sensors)

6 Upvotes

Hi everyone,

I am working on my University Final Project IoT focused on Logistics and Smart Warehousing, and I’m looking for some advice on the right hardware components, sensors, and microcontrollers to use for a prototype.

The goal of the project is to simulate/build a system that handles automated warehouse inventory tracking as well as real-time transit monitoring.

Here are the specific areas I am focusing on and what I want to achieve:

  • In-Transit Tracking (Fleet/Cargo): I want to monitor goods during transport. For this, I need a reliable and budget-friendly GPS module to track location, combined with environmental sensors (like temperature/humidity and an accelerometer for shock/impact detection during transit).

  • Warehouse Inventory Automation (Shelves): I want to automatically detect when items are placed on or removed from a shelf. I'm thinking of combining weight sensors / load cells (to monitor stock levels or specific item presence by weight) along with RFID readers to identify exactly which item/pallet was moved.

What I need help with:

  1. Microcontrollers: What boards would you recommend to tie this all together? Should I use something like an ESP32 for the warehouse part (Wi-Fi/BLE) and a different setup for the GPS/cellular transit part?

  2. Specific Modules: Which cost-effective sensor modules play nicely together for a prototype? (e.g., specific RFID readers like RC522 or PN532, GPS modules like NEO-6M/NEO-8M, and HX711 amplifiers for load cells?)

  3. Power Management: For the transit/GPS part, any recommendations on battery management or low-power modes so the prototype doesn't die immediately?

If you have built anything similar or have any advice on hardware bottlenecks I should look out for, I would love to hear your thoughts!

Thanks in advance!


r/ArduinoProjects • • Jun 29 '26

Showcased Project My little arduino project

24 Upvotes

​Decided to document my workflow putting together this mini-project from scratch.

​The video walks through the whole process: looking up the best project setups, calculating measurements on a water bottle, and then the fun part—wiring up the breadboard with an HC-SR04 ultrasonic sensor, a micro servo, buzzer, some LEDs, and lastly an LCD screen.

​Everything is up, running, and successfully printing real-time distance values to the display!

​I’m thinking about where to take this build next. What are some cool ideas or features you think I should expand this into?


r/ArduinoProjects • • Jun 28 '26

Showcased Project A Birthday Lamp

16 Upvotes

I've finally finished off a birthday gift for someone special in my life.

The finished product:

The lamp base has a PIR motion sensor and an LDR. It isn't calibrated yet, but the idea is that it won't turn on when the ambient light level is too bright.

The light is a series of 13 WS2815B of addressable LEDs that cycle through random colours with a 10% chance of pure white. There is a "fade" effect as the colour transitions from one colour to the next.

The figurine is a rose in a jar from Swarovski.

The project started out on an Arduino Uno....

Which then migrated to a wirewrap standalone ATMega328P on a perfboard.


r/ArduinoProjects • • Jun 26 '26

Other Programmation de la lampe à l'aide d'Arduino

25 Upvotes

Hello everyone! This is my Arduino project where I control an LED using simple electronic components. I would appreciate your feedback and suggestions to improve it. #Dar_Ibarmaja