There are very many cool Arduino projects and project sites in Internet (make Google search to see). Here are some interesting links to check out:
Arduino Projects at indestructables
Top 40 Arduino Projects of the Web
Arduino Rising: 10 Amazing Projects People Are Doing With The Tiny Microcontroller
Electronics For The Everyman: 25 Kick Ass Arduino-Powered Projects
10 Simple-But-Fun Projects to Make With Arduino
Internet of Thing with Arduino
11 Arduino projects that require major hacking skills—or a bit of insanity
I will be posting more links to more interesting projects as comments to this post, like I did in my Cool uses for the Raspberry Pi posting. Some of the most interesting that spend some more time at can get their entire own postings this blog in Arduino section.
2,997 Comments
Tomi Engdahl says:
A USB-C connector on a flex PCB
Let’s use an ATtiny84A as a structural element!
https://hackaday.io/project/183302-a-usb-c-connector-on-a-flex-pcb
Tomi Engdahl says:
This Samsung Ballie-inspired spherical robot gets around on a couple of wheels
https://blog.arduino.cc/2022/01/03/this-samsung-ballie-inspired-spherical-robot-gets-around-on-a-couple-of-wheels/
Back in early 2020, Samsung demonstrated their Ballie robot concept at CES, and although it never got off the ground, it inspired Derek Lieber to create his own version of a gyroscopically stabilized robot that moves with a pair of hemispherical “wheels” on each side.
Lieber’s project, which he calls “Ballbot2”, is based around a single Arduino Mega connected to a set of two LM6234 drivers that take the incoming 5V PWM signals and boost them up to the 12V required by the motors.
https://revenanteagle.org/checksix/ballbot/ballbot.htm
Tomi Engdahl says:
Neatly fold your t-shirts with an Arduino-powered robot
https://blog.arduino.cc/2022/01/03/neatly-fold-your-t-shirts-with-an-arduino-powered-robot/
Tomi Engdahl says:
In this post, David Johnson-Davies shows how to write a reaction timer in uLisp by accessing Input Capture on the Arduino Uno: forum.ulisp.com/t/measuring-precise-time-intervals/954
Tomi Engdahl says:
Homecomputer from scratch © GPL3+
Build your own 80s home computer from scratch based on an Arduino DUE – graphics display, keyboards, SD card disk and real time clock.
https://create.arduino.cc/projecthub/sl001/homecomputer-from-scratch-a04fb9
Tomi Engdahl says:
Adding LEDs to a Cross-Stitch Picture
You can add LEDs to your cross-stitch project using an Arduino LilyPad and conductive thread.
https://create.arduino.cc/projecthub/rdeprey/adding-leds-to-a-cross-stitch-picture-b398c1
Tomi Engdahl says:
Four-Button Wall-Mounted Arduino Uno Remote Makes Switching TV Channels More Accessible
Designed for elderly relatives, this four-button remote makes it easy to flip between three favorite channels
https://www.hackster.io/news/four-button-wall-mounted-arduino-uno-remote-makes-switching-tv-channels-more-accessible-f5ffa15f2a02
Tomi Engdahl says:
https://blog.arduino.cc/2022/01/05/pvc-pipe-plotter-prints-pretty-pictures/
Tomi Engdahl says:
Add a Rad CPU Load Graph to Your PC Case
If you want to see exactly how hard your CPU is working, you can add this rad TurboLEDz 88s CPU Load Graph to your PC case.
https://www.hackster.io/news/add-a-rad-cpu-load-graph-to-your-pc-case-0c7e1ac22f2f
Tomi Engdahl says:
Obstacle Avoiding Robot Using Arduino
https://techatronic.com/obstacle-avoiding-robot-using-arduino/
Tomi Engdahl says:
https://techatronic.com/smart-dustbin-with-arduino-step-by-step-guide/
Tomi Engdahl says:
https://techatronic.com/radar-using-arduino-ultrasonic-sensor/
Tomi Engdahl says:
https://circuitdiagrams.in/bidirectional-visitor-counter-using-arduino/
https://circuitdiagrams.in/automatic-plant-watering-system-with-arduino/
Tomi Engdahl says:
Automatic Attendance and Classroom Environmental Monitoring © GPL3+
This project simulates a Smart Classroom automatic attendance using RFID module and classroom environmental monitoring using DHT11.
https://create.arduino.cc/projecthub/anaferraz/automatic-attendance-and-classroom-environmental-monitoring-2496bd
Tomi Engdahl says:
https://www.hackster.io/news/this-arduino-powered-boat-boasts-full-autonomy-plus-lora-and-gsm-cellular-remote-control-2eff951aa2da
Tomi Engdahl says:
https://techatronic.com/dual-axis-solar-tracker-project-tutorial/
Tomi Engdahl says:
https://techatronic.com/line-following-robot-arduino-tutorial/
Tomi Engdahl says:
Adafruit Brings Floppy Disk Support to Arduino Boards, Creates an Open Source USB Floppy Drive
Adafruit Floppy project goes beyond CircuitPython with an Arduino port, MFM decoding, and a USB adapter mode — with more to come.
https://www.hackster.io/news/adafruit-brings-floppy-disk-support-to-arduino-boards-creates-an-open-source-usb-floppy-drive-acd1a09f5cbf
Tomi Engdahl says:
https://techatronic.com/simple-automatic-hand-sanitizer-with-indicator-light/
Tomi Engdahl says:
https://hackaday.com/2022/01/18/i2c-to-the-max-with-attiny/
Tomi Engdahl says:
How to monitor a beehive with Arduino Nano 33BLE (bluetooth)
You have a beehive and you want to optimise your interventions ? Checkout our project where we embed sensors in the beehive.
https://create.arduino.cc/projecthub/clementchamayou/how-to-monitor-a-beehive-with-arduino-nano-33ble-bluetooth-eabc0d
Tomi Engdahl says:
https://blog.arduino.cc/2022/01/18/autostrap-is-a-self-tightening-strap-thats-like-something-out-of-back-to-the-future/
Tomi Engdahl says:
PsyLink is a low-cost, non-invasive EMG interface based on the Nano 33 BLE Sense
https://blog.arduino.cc/2022/01/10/psylink-is-a-low-cost-non-invasive-emg-interface-based-on-a-nano-33-ble-sense/
Non-invasive EMG interfaces have the potential to solve many problems that afflict those who suffer from a disability or simply want a more efficient way to perform a task. This is what led one maker, who goes by the name “Hut,” to create their own open source device called PsyLink. It works by measuring the minute electrical impulses that cause muscles to contract and then sending them for further processing and inferencing via a machine learning model.
Tomi Engdahl says:
The Arduino Guide to Low Power Design
Learn the basics of low-power design using Arduino hardware and software.
https://docs.arduino.cc/learn/electronics/low-power
Tomi Engdahl says:
AutoStrap is a self-tightening strap that’s like something out of Back to the Future
https://blog.arduino.cc/2022/01/18/autostrap-is-a-self-tightening-strap-thats-like-something-out-of-back-to-the-future/
Tomi Engdahl says:
This Specialized Device Can Crack Keypad Codes Automatically
With an array of servo motors, this machine can guess password combinations much faster than a human can.
https://www.hackster.io/news/this-specialized-device-can-crack-keypad-codes-automatically-e6d9653c1e55
Tomi Engdahl says:
Plot designs onto cups with CylinDraw
https://blog.arduino.cc/2022/01/18/plot-designs-onto-cups-with-cylindraw/
Tomi Engdahl says:
Arduino-Powered Bobbin Winder Speeds the Creation of Custom Transformers for Power Supplies
Designed to take the work out of custom transformer building, this handy tool is built from “stuff laying around,” its creator says.
https://www.hackster.io/news/arduino-powered-bobbin-winder-speeds-the-creation-of-custom-transformers-for-power-supplies-c41559b6c93d
https://www.reddit.com/r/arduino/comments/s6qjbg/couple_pics_of_my_first_try_at_building_a/
Tomi Engdahl says:
https://hackaday.com/2022/01/19/arduino-meets-quantum-computer/
Connecting a Quantum Computer to an Arduino
https://www.youtube.com/watch?v=EFZnrl4wkT0
Tomi Engdahl says:
RFID Lock System With Servo Using Arduino…
More details and code
https://techatronic.com/rfid-lock-system-with-servo-using-arduino/
Tomi Engdahl says:
Full project link: https://circuitdiagrams.in/thunder-and-lightning-effect
Thunder and lightning effect using sound sensor/dfplayer
Tomi Engdahl says:
Gianluca Martino’s Jolly Is a Drop-In Upgrade to Add Wi-Fi to Your Arduino Uno — and More
Designed to slot into the DIP socket of an Arduino Uno or compatible, the Jolly adds an ESP8285 for Wi-Fi connectivity.
https://www.hackster.io/news/gianluca-martino-s-jolly-is-a-drop-in-upgrade-to-add-wi-fi-to-your-arduino-uno-and-more-5b2c674dbb5a
Tomi Engdahl says:
Supplino is a variable benchtop power supply that you can build yourself
https://blog.arduino.cc/2022/01/20/supplino-is-a-variable-benchtop-power-supply-that-you-can-build-yourself/
Working with electronics requires access to stable power in a variety of voltages. Some components require 3.3V and others require 5V. Still others need 9V or 12V — there are many possibilities. You could keep a variety of wall warts on hand, but a variable benchtop power supply is a more convenient option. Supplino is one choice and this guide from Giovanni Bernardo and Paolo Loberto will walk you through how to build one.
Supplino can accept anything from 4 to 40 volts and can output anything from 1.25 to 36 volts, with a maximum of 5A. An XH-M401 module with an XL4016E1 DC-DC buck converter handles the voltage regulation. Technically, you could use that alone to power your components. But the addition of an Arduino Nano board (or Nano Every) makes the experience far friendlier. It monitors the power supply output and drives a 1.8″ 128×160 TFT LCD screen, which displays the present voltage, amperage, and wattage.
Tomi Engdahl says:
Remote Control Robot Using Arduino And TSOP Sensor Module… more details
https://techatronic.com/remote-control-robot-using-arduino-and-tsop-sensor-module/
Tomi Engdahl says:
The PsyLink Lets People Type with Only Their Thoughts
https://www.hackster.io/news/the-psylink-lets-people-type-with-only-their-thoughts-988790978b2f
By measuring small electrical changes on a person’s arm, this device can infer which keys need to be pressed and when with machine learning.
Tomi Engdahl says:
Viewing Reflections in Low Resolution with the “Bad Mirror”
The “Bad Mirror” takes the concept of a mirror and flips it on its head by showing the subject in an extremely low resolution.
https://www.hackster.io/news/viewing-reflections-in-low-resolution-with-the-bad-mirror-ca73ac104525
Tomi Engdahl says:
Spy Robot using Arduino…. more details
https://techatronic.com/mobile-phone-control-spy-robot-project/
Tomi Engdahl says:
DIY Metal Detector Using Arduino Step By Step
…. more details and code
https://techatronic.com/how-to-make-metal-detector-metal-detector-using-arduino-techatronic/
Tomi Engdahl says:
A paper cutter made with arduino, quite creative!
https://bit.ly/3fKye7Y
Tomi Engdahl says:
https://blog.arduino.cc/2022/01/25/capture-macro-photos-with-this-arduino-powered-platform/
Tomi Engdahl says:
https://www.electronicwings.com/users/SriramSubramanianprema/projects/1820/mini-cnc-plotter
Tomi Engdahl says:
Using an Arduino Due, this setup automatically generates a KiCad schematic for a circuit prototyped on a breadboard.
Schematic-o-matic
https://create.arduino.cc/projecthub/nickbild/schematic-o-matic-b6406f
Automatically draw a KiCad schematic for a circuit prototyped on a breadboard.
Tomi Engdahl says:
Park perfectly in your garage with the help of this Redditor’s distance sensor: reddit.com/r/arduino/comments/scwer9/built_a_distance_sensor_for_parking_the_car_in/
Tomi Engdahl says:
Home Automation Using Arduino And Bluetooth… more details and code
https://techatronic.com/home-automation-using-arduino-and-bluetooth/
Tomi Engdahl says:
DIY drone engines with cheap circuit boards
https://bit.ly/3AwnvaR
Tomi Engdahl says:
Laser tripwire security system using Arduino :-
Code and circuit :- https://bit.ly/3p1En2l
Tomi Engdahl says:
No green thumb? No problem! With the help of a few IoT Carrier boards and the Arduino Cloud, you can make dead plants a thing of the past.
Making Your Plants Smart with Arduino Cloud
https://m.youtube.com/watch?v=RsmPT4kAUl8
Join the Arduino team as they show you how to make a plant monitoring system using the IoT Carrier and Arduino Cloud.
Build your own right here! https://cloud.arduino.cc
Tomi Engdahl says:
Circuit Diagram and Code link:
https://circuitdiagrams.in/human-following-robot-using-arduino
Tomi Engdahl says:
Thunder And Lightning Effect Using Arduino And AC Bulb
https://circuitdiagrams.in/thunder-and-lightning-effect/
Thunder And Lightning Effect System: Today we are going to build a cool project that is thunder and lightning effect using Arduino. Lightning is the most spectacular part of a thunderstorm. In fact, it is how thunderstorm got its name. The lightning causes the thunderstorm.
Tomi Engdahl says:
RFID Lock System With Servo Using Arduino
https://techatronic.com/rfid-lock-system-with-servo-using-arduino/