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.
3,010 Comments
Tomi Engdahl says:
Compact Arduino-Controlled Machine Sorts M&Ms by Color
Or perhaps modify it for Skittles to sort the rainbow.
https://www.hackster.io/news/compact-arduino-controlled-machine-sorts-m-ms-by-color-095971569911
Tomi Engdahl says:
DiY Arduino based drone
More info :- http://bit.ly/diyarduinodrone
Tomi Engdahl says:
Watch Television the Old Way with an Arduino-Powered Mechanical TV
See how this device uses a spinning disc and a single LED to display movies.
https://www.hackster.io/news/watch-television-the-old-way-with-an-arduino-powered-mechanical-tv-032c664ea527
Tomi Engdahl says:
Listen to a dozen Arduino Nanos play Star Wars fanfare.
(via Simple DIY Electronic Music Projects)
Arduino Tone One Year On – A New Hope!
https://m.youtube.com/watch?v=qswqjhcMhPk&feature=emb_title
This video shows twelve Arduino Nanos, each using just the tone() function and a speaker on a single MIDI channel, but collectively bringing you this performance of the fanfare from the end of Star Wars Episode IV A New Hope.
Read more about the technology here:
https://diyelectromusic.wordpress.com/2021/06/01/arduino-tone-one-year-on/
Tomi Engdahl says:
LegoSlimBoy is a Nano-powered Arduboy in a small LEGO arcade cabinet: create.arduino.cc/projecthub/marcoconfortidonati/legoslimboy-arduboy-in-a-small-lego-arcade-cabinet-725b8a
Tomi Engdahl says:
Dual Axis Solar Tracker using Arduino… Full detail and code click the link
https://techatronic.com/dual-axis-solar-tracker-project-tutorial/
Tomi Engdahl says:
This Arduino project is counting to a billion
https://blog.arduino.cc/2021/06/14/this-arduino-project-is-counting-to-a-billion/
Good design counts for everything
Designer Che-Wei Wang built a simple Arduino project that’s counting to a billion, and has been doing so for over 10 years. Could this be the longest continually running Arduino project in the world?
Che-Wei has a background in art, architecture and industrial design. He now runs a boutique design studio with is wife Taylor, called CW&T. But it was during his time at university that he first discovered his love for Arduino.
Tomi Engdahl says:
DIY Super Simple Electronic Component Tester © GPL3+
The device is capable of testing: PNP, NPN transistors, N or P channel MOSFET, diodes, double diodes, resistors, capacitors…
https://create.arduino.cc/projecthub/mircemk/diy-super-simple-electronic-component-tester-234752
Tomi Engdahl says:
https://hackaday.com/2021/06/20/arduino-nano-memory-upgrade-with-no-soldering/
Tomi Engdahl says:
https://hackaday.com/2021/06/21/forget-smart-watch-build-a-smart-hat/
https://www.instructables.com/Wilson-the-IoT-Hat/
Tomi Engdahl says:
Tic-tac-duino! Michael Klements designed an Arduino shield with a grid of LEDs and corresponding tactile buttons for playing the game.
This shield brings a tic-tac-toe game to your Arduino Mega, complete with an AI opponent
https://blog.arduino.cc/2021/06/22/this-shield-brings-a-tic-tac-toe-game-to-your-arduino-mega-complete-with-an-ai-opponent/
Tic-tac-toe is a nearly perfect time-wasting game as it’s quick to play, easy to learn, and has a very small set of rules, which makes it ideal for implementation on a microcontroller. Michael Klements wanted to take it a step further and add a simple AI that can effectively play against a human opponent while never losing a single match. The device he came up with is a shield that fits onto an Arduino Mega and features a grid of LEDs and corresponding tactile buttons. A player can then choose from one of three different modes: easy AI, expert AI, or a human opponent.
Tomi Engdahl says:
Rock a-bye baby on the Arduino-driven crib.
Arduino rocks babies to sleep, gives parents a break
https://blog.arduino.cc/2021/06/22/arduino-rocks-babies-to-sleep-gives-parents-a-break/
Tomi Engdahl says:
You can create (and share) as many dashboards as you want in your Arduino Cloud. Perfect for home automation control panels, or smartphone controls!
Here’s how: https://blog.arduino.cc/2021/06/18/14-awesome-arduino-cloud-features-you-never-knew-existed
Tomi Engdahl says:
https://hackaday.com/2021/06/23/big-spinning-disk-makes-a-small-color-video-display/
Tomi Engdahl says:
https://hackaday.com/2021/06/23/spectrum-display-uses-tiny-cpu-and-many-leds/
Tomi Engdahl says:
Interfacing multipole external EEPROM with Arduino through I2C
https://labprojectsbd.com/2021/06/27/interfacing-multipole-external-eeprom-with-arduino-through-i2c/
#eeprom,#arduino,#memory
Tomi Engdahl says:
Easy Firework Firing System
Control up to 32 outputs using the Arduino Mega for custom firework show.
https://hackaday.io/project/180504-easy-firework-firing-system
Tomi Engdahl says:
John McNelly decided to recreate a roadside speed sign using an Arduino Nano and an HB100 Doppler radar module.
DIY radar speed sign looks and works like the real thing
https://blog.arduino.cc/2021/06/29/diy-radar-speed-sign-looks-and-works-like-the-real-thing/
McNelly’s design relies on an Arduino Nano and a Doppler radar module that sends out 10.525GHz radio pulses continuously and measures how much the reflected frequency has changed.
The sign also uses a giant seven-segment display for showing the speed to passersby.
http://johnmcnelly.com/arduino-radar-speed-sign/
https://github.com/CoolNamesAllTaken/radar-speed-sign
Tomi Engdahl says:
Building an Arduino Energy Monitor & Data Logger
https://hackaday.io/project/170108-building-an-arduino-energy-monitor-data-logger
How I built an Arduino energy monitor and data logger to collect energy data for different loads and plotted that data using Excel.
Tomi Engdahl says:
Door security System Arduino RFID project… Full detail and code click the link below
https://techatronic.com/door-security-system-arduino-rfid-project/
Tomi Engdahl says:
https://hackaday.com/2021/07/01/quick-and-simple-morse-decoder/
Tomi Engdahl says:
Build your own adorable, talking WALL-E robot
https://blog.arduino.cc/2021/07/03/build-your-own-adorable-talking-wall-e-robot/
Wall-E Robot Arduino EasyVR3 (Updated) New Video With Voice Commands..Funny!)
https://www.instructables.com/Wall-E-Robot-Arduino-EasyVR3/
Tomi Engdahl says:
This wearable device sends an alert whenever it detects a fall
https://blog.arduino.cc/2021/07/02/this-wearable-device-sends-an-alert-whenever-it-detects-a-fall/
Tomi Engdahl says:
https://hackaday.com/2021/07/01/quick-and-simple-morse-decoder/
http://persion.info/projects/arduino-morse-decoder/
Tomi Engdahl says:
https://blog.arduino.cc/2021/07/02/this-radio-tailors-the-morning-news-to-your-waking-mood/
Tomi Engdahl says:
Recreating a Roadside Speed Sign Using an Arduino Nano and Doppler Radar
See how John McNelly created this true-to-life speed sign that uses Doppler radar and over 250 LEDs to display someone’s speed.
https://www.hackster.io/news/recreating-a-roadside-speed-sign-using-an-arduino-nano-and-doppler-radar-554e4c1b7dc2
Tomi Engdahl says:
Arduino MIDI Mouse Controller © MIT
Turn an old “roller ball” mouse into a MIDI controller that can unlock new ways of making digital music.
https://create.arduino.cc/projecthub/kzra/arduino-midi-mouse-controller-b360eb
Tomi Engdahl says:
Iron Becomes SMD Hot Plate
https://hackaday.com/2021/07/04/iron-becomes-smd-hot-plate/
Few things have changed our workshops more than surface mount components. In 1980 it would have been strange to see a hobby bench with a microscope, hot air equipment, tweezers, and all the other accouterments that are a necessity today. [Electronoobs] wanted a reflow hot plate and decided that he could repurpose a consumer laundry iron for the job. You can see the results in the video below.
Homemade Reflow Hot Plate for SMD Soldering – 3000W
https://www.youtube.com/watch?v=C7blZigaaaA
Tomi Engdahl says:
https://hackaday.com/2021/07/04/this-arduino-isnt-color-blind/
Tomi Engdahl says:
QUARK Is a New Open Source Multitool for Arduino-Based Electronics
The device features a full-color screen and touch-based control, and can be used for applications like electronics repair and diagnostics.
https://www.hackster.io/news/quark-is-a-new-open-source-multitool-for-arduino-based-electronics-8e847b6ebc10
Tomi Engdahl says:
Two Arduinos are used to control this DIY three-axis CNC plotter
https://blog.arduino.cc/2021/06/23/two-arduinos-are-used-to-control-this-diy-cnc-drawing-machine/
Tomi Engdahl says:
Use your smartphone to control Wilson the IoT hat
https://blog.arduino.cc/2021/06/21/use-your-smartphone-to-control-wilson-the-iot-hat/
Wearable displays are nothing new, but many of them lack that all-important “fun” element. That’s why OlivierZ over on Instructables created Wilson the IoT hat. The smart hat contains a large 232mm by 22mm flexible LED strip on its front that prominently shows rainbow text across a 71×7 LED matrix. The whole thing runs on a single 9V battery, which powers an Arduino Nano, HC-05 Bluetooth module, and LED matrix. All of these components are nicely tucked away within the top of the hat to prevent wearers from seeing unsightly wires.
Tomi Engdahl says:
Modem Turned Into a MIDI Guitar Sort of: GuitArnet © MIT
GuitArnet is an Arduino-based simple MIDI guitar with pitch, power chords and minor pentatonic connected to Ableton Live through MIDI.
https://create.arduino.cc/projecthub/roni-bandini/modem-turned-into-a-midi-guitar-sort-of-guitarnet-c98fb9
Tomi Engdahl says:
A low-cost, easy-to-install solution to your home automation needs.
Automate your home on the cheap with this Arduino setup
https://blog.arduino.cc/2021/07/06/home-automation-on-the-cheap/
His build uses a single Arduino Uno, although it can easily be swapped with something like a Nano or Mega, along with a stepper motor/driver, servo motor, threaded rod, and an IR receiver + remote combo.
The main portion of the home automation setup is the stepper motor assembly, and it is responsible for moving the servo motor back and forth across the bank of switches.
Cheapest Plug & Play Room Automation Setup
https://www.instructables.com/Cheapest-Plug-Play-Room-Automation-Setup/
Tomi Engdahl says:
https://hackaday.com/2021/07/08/diy-forth-on-arduino/
Tomi Engdahl says:
DIY Arduino Analog style Stereo VU meter on I2C Oled displays
How to make an extremely simple but visually effective VU meter at 0.9 inches Oled displays SSD 1306
Complete Instructions, schematic and code at: https://youtu.be/Wsuehxhob-c
Tomi Engdahl says:
This sundial adjusts itself to compensate for daylight savings time and more
https://blog.arduino.cc/2021/07/13/this-sundial-adjusts-itself-to-compensate-for-daylight-savings-time-and-more/
Some sundials are as simple as a stick pushed into the dirt, but they’re still reliable and accurate. The sun is, after all, quite consistent. But there are some caveats. The Earth’s orbit and its rotational tilt mean that the lengths of our days are variable and that means the simplest sundials are only perfectly accurate once a year. To compensate for those factors, Redditor Onemywaybackhome built this sundial that is capable of self-correction.
https://www.reddit.com/r/arduino/comments/oh4zbt/selfcorrecting_sundial_adjusts_for_daylight/
Tomi Engdahl says:
Flex Your Muscles and Coding Skills with the FANTM EMG Shield
The FANTM EMG shield allows you to easily control games and devices with your muscle movements via a simple API.
https://www.hackster.io/news/flex-your-muscles-and-coding-skills-with-the-fantm-emg-shield-e34536a9df97
Tomi Engdahl says:
Home automation using Arduino and bluetooth
https://techatronic.com/home-automation-using-arduino-and-bluetooth/
What is Home automation using Arduino and Bluetooth?
In the system, we have a mobile app which can be an MIT app invented app or You can also download the app from the play store with the name home automation. there are many apps you can download the app as per your requirement We will also share the link below. So, The app will be connected to the Bluetooth HC-05 which is part of the control system and Bluetooth HC-05 receive the data from the android app.
There are many buttons in the app which send some variable when we press those buttons. Now, the Bluetooth HC-05 receives and sends this data to the Arduino by serial communication. And Arduino starts to compare this data with the Database and there are many conditions for the different bulbs. if any condition finds true then the associate bulb starts to glow. Here the HC-05 works as recipients and Arduino is like Controller. With the arduino we are also using the relay module so that we can interface the electronic appliance with the Arduino.
Tomi Engdahl says:
Test and diagnose your USB cables with this Arduino device
https://blog.arduino.cc/2021/07/09/test-and-diagnose-your-usb-cables-with-this-arduino-device/
This device features an Arduino Mega board inside a 3D-printed enclosure, with IO pins connected to USB-A, USB-C, Micro-B, and Mini-B ports. It scans these ports to determine the configuration and lets the user know exactly how the cable is wired via a 2.8” TFT screen on top.
https://www.instructables.com/Arduino-Cable-Tracer/
Tomi Engdahl says:
ACCIDENT PREVENTION, DETECTION AND REPORTING SYSTEM USING ARDUINO
https://electronicsworkshops.com/2021/07/05/accident-prevention-detection-and-reporting-system-using-arduino/
The system consists of eye blink sensor, temperature sensor, alcohol sensor, accelerometer, GPS module, GSM module, motor, buzzer, led etc. and all these devices are interfaced with the central micro controller unit. We are going to use eye blink sensor for detecting sleep by setting the certain time limit, if the driver gets sleepy,we can warn him. Temperature sensor helps us in detecting the heat of the engine and if the engine is overheated then that of a normal condition, we can warn the driver. Alcohol sensor helps us in detecting if the driver is drunk or not. If he/she is over drunk the vehicle provides warning and the engine stops functioning.Accelerometer detects the occurrence of accident and sends signal to the micro controller for further functioning. GPS module provides us the location, speed, time and date of the certain place where the vehicle is in the real time.If accident occurs, the location of accident that we get from the GPS is send to the ambulance service and police by the help of GSM module. Everything might be all right after a simple accident so the driver can re-inform the ambulance service and police station in this case.
Tomi Engdahl says:
Steve Caruso’s Arduino-Powered Smart Coaster Reminds Him to Drink When He’s in the Zone
Housed in a three-part 3D-printed body, this smart coaster changes color before flashing to alert the user to impending dehydration.
https://www.hackster.io/news/steve-caruso-s-arduino-powered-smart-coaster-reminds-him-to-drink-when-he-s-in-the-zone-c800d56f3d96
Tomi Engdahl says:
Digitalize GSM based Forest fire alert system major project for ECE
https://techatronic.com/digitalize-gsm-based-forest-fire-alert-system-major-project-for-ece/
Tomi Engdahl says:
This Nixie tube clock keeps the time and the cost down
https://blog.arduino.cc/2021/07/07/this-nixie-tube-clock-keeps-the-time-and-the-cost-down/
Tomi Engdahl says:
Work on your Arduino sketches from anywhere with remote sketchbook
https://blog.arduino.cc/2021/07/06/work-on-your-arduino-sketches-from-anywhere-with-remote-sketchbook/
Tomi Engdahl says:
EmoPot – A Plant Pot That Can Show a Plant’s Emotions © GPL3+
This is a smart plant pot that can sense the plant’s condition and shows an emotional expression (animation) for that condition.
https://create.arduino.cc/projecthub/abid_hossain/emopot-a-plant-pot-that-can-show-a-plant-s-emotions-254ea4
Tomi Engdahl says:
Smart Coffee Machine with Arduino and Bluetooth © CC BY-NC
Not just a Smart Coffee Maker with Smartphone control, it’s a multipurpose ThermoGraph also!
https://create.arduino.cc/projecthub/gyula-osi/smart-coffee-machine-with-arduino-and-bluetooth-6870d0
Tomi Engdahl says:
Control Your Displays with the Arduino_GFX Library
The Arduino_GFX library is a versatile option that works with a wide range of displays and Arduino-compatible boards.
https://www.hackster.io/news/control-your-displays-with-the-arduino-gfx-library-482d8e0767d6
Tomi Engdahl says:
Draw Anything on Your Oscilloscope © GPL3+
Ever wanted to display any hand-drawn image on your fancy oscilloscope? Well, now you can!
https://create.arduino.cc/projecthub/juanfalvarezjr/draw-anything-on-your-oscilloscope-ffb2aa
Tomi Engdahl says:
The FANTM DEVLPR is an open source electromyography Arduino shield
https://blog.arduino.cc/2021/07/14/the-fantm-devlpr-is-an-open-source-electromyography-arduino-shield/