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.
2,958 Comments
Tomi Engdahl says:
Arduino Walkie-Talkie Produces Marginal Audio Quality
https://blog.hackster.io/arduino-walkie-talkie-produces-marginal-audio-quality-b71afa4d8e25
Tomi Engdahl says:
Shower monitor helps you save water and money
https://blog.arduino.cc/2019/07/23/shower-monitor-helps-you-save-water-and-money/
The device uses a flow sensor plumbed inline with a shower head, which transmits pulses to an Arduino Nano setup. This Nano, which resides in a nicely 3D-printed enclosure, measures these pulses and outputs the amount of water you’ve used to a 16×2 LCD screen, along with its cost calculated according to your particular utility rates.
Tomi Engdahl says:
https://spectrum.ieee.org/geek-life/hands-on/machine-learning-thats-light-enough-for-an-arduino
Tomi Engdahl says:
SIMULATE CLIMATE WITH AN ARDUINO
https://hackaday.com/2019/08/02/simulate-climate-with-an-arduino/
Arduino-powered Norman climate simulator from [934Virginia] which leverages data from different locations or times of year based on NOAA weather data to mimic a particular growing environment.
https://github.com/934virginia/Norman
Tomi Engdahl says:
https://hackaday.com/2019/07/23/control-your-web-browser-like-its-1969/
[Jan Derogee] thinks a step backward is on order, and so he built this rotary phone web browser. The idea is simple: pick up the handset and dial the IP address of the server you want to connect to. DNS? Bah, who needs it?
http://home.kpn.nl/bderogee1980/projects/rotary_dial_phone_www/rotary_dial_phone_www.html
Tomi Engdahl says:
HDMI From Your Arduino
https://hackaday.com/2019/07/26/hdmi-from-your-arduino/
Creating a video signal from a computer, a job that once required significant extra hardware, is now a done deal with a typical modern microcontroller. We’ve shown you more NTSC, PAL, and VGA projects than you can shake a stick at over the years. Creating an HDMI video signal however is not so straightforward. It’s not a loosely defined analogue standard but a tightly controlled digital one upon which the clever hacks that eke full colour composite video from a single digital I/O pin will have little effect. Surely creating them from a simple microcontroller will be impossible! Not according to [techtoys], who has created an Arduino shield that creates an HDMI output from an SPI control input.
https://github.com/techtoys/HDMI-Shield/tree/master/Ra8876_Lite
Tomi Engdahl says:
Arduino Watch Is an Impressive Feat of Miniaturization
https://blog.hackster.io/arduino-watch-is-an-impressive-feat-of-miniaturization-61f3974778aa
He settled on the Pro Micro board, as it uses an ATmega32U4 microcontroller for control and USB communication without a power hungry FTDI chip.
It also comes in a 3.3V version, allowing it to easily be used with a 3.7V LiPo. Display-wise, he chose a 240 x 240 pixel ST7789 LCD, and an RTC module keeps time. Finally, a pair of vibration sensors wakes the prototype up from sleep mode.
Tomi Engdahl says:
Send Data with Sound © GPL3+
Control your Arduino using data-over-sound.
https://create.arduino.cc/projecthub/ChirpDevs/send-data-with-sound-bf7024
Here at Chirp HQ, we were extremely excited to hear the announcement that Arduino would be releasing a new board with a whole host of new features. These features include a wide range of sensors, a powerful processor and most importantly – an on board microphone! The good people at Arduino sent us over a pre-release of the new Nano 33 Sense board, which is fully compatible with Chirp, allowing the maker community to send and receive data using sound.
Tomi Engdahl says:
This Project Takes Laser Harps to a Whole New Level
https://blog.hackster.io/taking-laser-harps-to-the-next-level-ccaa9418af99
Tomi Engdahl says:
Programmable Camera Slider with Panning Control
https://blog.hackster.io/programmable-camera-slider-with-panning-control-77333de45a65
Tomi Engdahl says:
MeArm Controlled by Arduino Uno and TTP229-BSF Touchpad
https://create.arduino.cc/projecthub/alankrantas/mearm-controlled-by-arduino-uno-and-ttp229-bsf-touchpad-7e2824
Instead of using 2-axis joysticks, I decided to use a spare TTP229-BSF capacitive touchpad to control a 4-DoF MeArm robotic arm.
Tomi Engdahl says:
Chirp brings data-over-sound capabilities your Arduino projects
https://blog.arduino.cc/2019/08/12/chirp-brings-data-over-sound-capabilities-your-arduino-projects/
https://blog.chirp.io/chirp-for-arduino/
Tomi Engdahl says:
Visualize Your Tunes with an ATtiny85 Audio Spectrum
https://blog.hackster.io/visualize-your-tunes-with-an-attiny85-audio-spectrum-6637e7acf960
Tomi Engdahl says:
Humidity Controller
https://create.arduino.cc/projecthub/Shaeroden/humidity-controller-c13dad
Tomi Engdahl says:
Nano 33 IoT + EC/pH/ORP + WebAPK © MIT
https://create.arduino.cc/projecthub/uFire/nano-33-iot-ec-ph-orp-webapk-82ab54
Tomi Engdahl says:
Virtual Panel: PC-Based Control Over Arduino Experiments © MIT
https://create.arduino.cc/projecthub/JaapDanielse/virtual-panel-pc-based-control-over-arduino-experiments-ccf62f
Writing only Arduino code, it is easy to set up control over experiments and display results on your PC’s panel application.
Virtual Panel is a toolbox for experiment control and display. It is a combination of a Windows application and two small Arduino libraries.
Writing only Arduino code, it is easy to set up control over experiments and display results on the panel application on your PC.
The panel allows to select controls from an existing set of displays, LEDs, buttons, sliders and more.
https://github.com/JaapDanielse/VirtualPanel/releases
Tomi Engdahl says:
Read PWM, Decode RC Receiver Input, and Apply Fail-Safe
https://create.arduino.cc/projecthub/kelvineyeone/read-pwm-decode-rc-receiver-input-and-apply-fail-safe-6b90eb
Tomi Engdahl says:
Smart Garden System with Arduino Nano IoT
https://create.arduino.cc/projecthub/gatoninja236/smart-garden-system-with-arduino-nano-iot-791933
Tomi Engdahl says:
https://github.com/arduino/arduino-cli/releases
Tomi Engdahl says:
The Autonomous Tupperware Boat Is an ArduRover Test Platform
https://blog.hackster.io/the-autonomous-tupperware-boat-is-an-ardurover-test-platform-46a7f1e36bc2
Tomi Engdahl says:
Sound Direction Tester © GPL3+
https://create.arduino.cc/projecthub/calettso/sound-direction-tester-e5f373
In this video, I test two DAOKI microphone sensors with my Arduino Uno to create a sound direction tester.
Tomi Engdahl says:
RetroShield Emulates Classic 8-Bit Computers Like the Apple I
https://blog.hackster.io/retroshield-emulates-classic-8-bit-computers-like-the-apple-i-3d4debf79193
Tomi Engdahl says:
This Laser-Cut T-Rex Model Was Brought to Life with an Arduino
https://blog.hackster.io/this-laser-cut-t-rex-model-was-brought-to-life-with-an-arduino-cd102c3e8d7
Tomi Engdahl says:
https://blog.hackster.io/arduinoble-v1-1-10-adds-ble-central-support-e65256e37982
Tomi Engdahl says:
https://create.arduino.cc/projecthub/ArduinoFT/arduino-controlled-car-factory-body-shop-685ef2
Tomi Engdahl says:
Arduino – Control Light Bulb via Web © GPL3+
Controlling a device from a web browser may be easier than you think.
https://create.arduino.cc/projecthub/Homer/arduino-control-light-bulb-via-web-22bc3d
Tomi Engdahl says:
https://blog.arduino.cc/2019/08/27/desktop-usb-drum-for-some-serious-finger-tapping/
Tomi Engdahl says:
So Is Your Arduino Lying to You?
Is there really a problem with the Arduino analogRead() function?
https://blog.hackster.io/so-is-your-arduino-lying-to-you-15dcab71aa7e
Tomi Engdahl says:
https://create.arduino.cc/projecthub/jithinsanal1610/gesture-based-media-player-controller-using-arduino-b78647
Tomi Engdahl says:
https://blog.hackster.io/using-an-i2c-device-without-a-library-4ded59038f61
Tomi Engdahl says:
https://blog.arduino.cc/2019/07/31/mover3d-is-a-3d-printed-moving-light-for-your-desk/
Tomi Engdahl says:
Use This Adapter to Connect a Retro Keyboard to Your Modern Computer
https://blog.hackster.io/use-this-adapter-to-connect-a-retro-keyboard-to-your-modern-computer-8af2c2c349b
many people still prefer retro keyboards like the legendary IBM Model M from the ’80s. However, those often require ports that are no longer in use today. Fortunately there is a solution, and you can use this XTiny adapter to connect XT/AT keyboards to a modern computer’s USB port.
XTtiny board utilizes a Microchip ATmega32u4 microcontroller — the same one found in the Arduino Micro and Leonardo development boards.
https://www.tindie.com/products/futureretro/xtiny-xtat-to-usb-keyboard-adapter/
Tomi Engdahl says:
Face Tracking Camera © GPL3+
When it sees you, it won’t stop following!
https://create.arduino.cc/projecthub/Little_french_kev/face-tracking-camera-afbef5
Tomi Engdahl says:
Building an RF Side-Channel Attack Using Machine Learning
Using machine learning and an Arduino to steal a PIN code
https://blog.hackster.io/building-an-rf-side-channel-attack-using-machine-learning-6544e691542e
Tomi Engdahl says:
Why buy a Roomba when you can make your own 3D-printed robotic vacuum cleaner? http://bit.ly/2kOBdDr
Tomi Engdahl says:
https://hackaday.com/2019/09/24/smart-map-puts-on-a-show-thanks-to-arduinos-and-dmx/
Tomi Engdahl says:
https://hackaday.com/2019/09/22/a-hard-rocking-arduino-visualization-shield/
Tomi Engdahl says:
https://hackaday.com/2019/09/20/homemade-wall-stops-roomba-and-other-vacuum-tricks/
Tomi Engdahl says:
https://hackaday.com/2019/06/29/a-doom-esque-port-to-the-atmega328/
Tomi Engdahl says:
Blisteringly Fast Machine Learning On An Arduino Uno
https://hackaday.com/2019/06/30/blisteringly-fast-machine-learning-on-an-arduino-uno/
Tomi Engdahl says:
Stream Data from Arduino into Excel © MIT
Stream and analyze live data from your Arduino microcontroller into Excel with the Data Streamer add-in!
https://create.arduino.cc/projecthub/HackingSTEM/stream-data-from-arduino-into-excel-f1bede
Tomi Engdahl says:
https://create.arduino.cc/projecthub/t3chflicks/smart-hanging-basket-280f74
Tomi Engdahl says:
These LEGO linkage walkers wander under Arduino control
https://blog.arduino.cc/2019/09/27/this-lego-linkage-walker-wanders-under-arduino-control/
Tomi Engdahl says:
Lisp Runs on a $1 ATtiny3216
https://www.hackster.io/news/lisp-runs-on-a-1-attiny3216-21a7f02fc7de
David Johnson-Davies has come up with a way to run the high-level language uLisp —his version of Lisp written for microcontrollers — on an ATtiny3216. This relatively new microcontroller costs just over a dollar, but packs in some impressive specs, including a 32kB of flash memory and 2kB of RAM. This just so happens to match up with the ATmega328P that was previously the smallest MCU that could run this interpreter
http://www.technoblogy.com/show?2R5C
Tomi Engdahl says:
Buddy, the 3D-Printed Arduino Social Robot © CC BY-NC-ND
A desktop interactive 3D-printed Arduino social robotics kit for fun and STEM education.
https://create.arduino.cc/projecthub/slantconcepts/buddy-the-3d-printed-arduino-social-robot-ec3dca
Tomi Engdahl says:
Sound Location Finder © GPL3+
In this project, I create a sound location finder. This circuit can be used as the basic building block to a robot that reacts to sound.
https://create.arduino.cc/projecthub/calettso/sound-location-finder-92e6b0
Tomi Engdahl says:
https://blog.arduino.cc/2019/10/14/the-arduino-audio-meter-is-a-programmable-guitar-pedal/
Tomi Engdahl says:
Arduino nano 33 ble propeller CAR
https://www.youtube.com/watch?v=rc2VnX2is3A
Tomi Engdahl says:
https://hackaday.com/2019/08/30/your-arduino-samd21-adc-is-lying-to-you/
Tomi Engdahl says:
https://hackaday.com/2019/08/30/arduino-on-mbed/