20 Projects To Celebrate Arduino Day

Arduino Yún

In the spirit and celebration of Arduino Day, we’ve compiled a list of some great past projects for your enjoyment.

While the Arduino UNO and older Duemilanove are two of the most common Arduino boards, the MEGA and the Yún should not be avoided. The MEGA is much like the UNO, however, it has an expanded number of input and output pins, and is often used to control 3D printers. The Yún is ideal for project where onboard wifi connectivity is a must.

Arduino MEGA

Don’t forget that shields –boards that plug directly into the Arduino’s header pins– are a fantastic, rapid way to add functionality to a project. Not only do shields provide a quick hardware solution, but almost every shield on the market has accompanying software libraries to leverage their unique, individual hardware features.

Arduino Wireless SD Shield

We hope you enjoy the gallery of Arduino projects and make sure to tell us about your latest Arduino based project in the comments.

S.M.A.R.T. Alarm Clock
Setup for Meetings, Appointments, Reminders, and Tasks, this clock uses an Arduino Yún and your Google Calendar to automatically set alarms. And it looks cool too!
Replace and Re-Flash a Blown Arduino
Learn to re-claim a blown Arduino, for a few dollars. Not a fix for all problems you might encounter, but it’s a cheap way to troubleshoot your microcontroller.
Skill Builder: Advanced Arduino Sound Synthesis
The Arduino is an amazing platform for all kinds of projects, but when it comes to generating sound, many users struggle to get beyond simple beeps. With a deeper understanding of the hardware, you can use Arduino to generate any waveform you can imagine, and manipulate it in real time.
High-Speed Splash Photography Rig with Arduino
In this project we’ll show you how to take perfect splash photos, the easy way—by precisely timing the dropping of the object and the triggering of the flash, using an Arduino microcontroller board.
Garduino Geek Gardening
Create an automated watering, light, and temp control system.
Smart Rat Trap
Arduino + desperation = 21st-century rodent control
Keyless Lock Box
There’s no key in this keyless electronic combination lock box; you just move your finger across a small optical window, and it’s “open sesame.” The combination to the lock is a secret movement pattern only you know.
PIR Sensor Arduino Alarm
Build a motion-sensing alarm with a PIR sensor and an Arduino microcontroller.
Secret-Knock Gumball Machine
Make a cute candy vending machine that only dispenses treats when you knock the secret rhythm on its front panel.
Hack “My Keepon” With an Arduino Brain
These instructions show you how to connect an Arduino to My Keepon’s electronics, so you can control it using just about any sensors, devices, and interfaces you can imagine!
My Robot, Makey
Make an autonomous robot that uses an Arduino programmed to follow objects around and avoid obstacles.
Build a projBox Controller
Make a custom physical interface with an Arduino for controlling software written in Processing.
Coffee Cup Spy Cam
Build a stealthy and sleuthy tilt-triggered camera.
Laundry Text Message Alerts With Arduino Yun
The buzzer on a washer or dryer may be OK for most people, but what if you would like something a little more versatile to tell you when your laundry is done? Here’s an interesting solution involving an Arduino Yún that sends a text message when the washer or dryer is done.
Networked On Air Light
Now that anyone can broadcast video over the Web, it’s time to learn how to build your own “Now Streaming” light that checks to see if you’re streaming!
Arduino Mail Notifier
Using two Arduinos, some cheap RF modules, and a light sensor, create a solution that alerts you when the mail has arrived.
Hacking the Wii MotionPlus to Talk to the Arduino
This project shows you how to make an Arduino microcontroller talk to a hacked Wii MotionPlus 3-axis gyroscope.
Arduino-Controlled Halloween Props
Build a system that lets you control all of your animated Halloween props with a single Arduino.
Smart Remote Control
Build this easy universal remote and command all your entertainment gadgets from your smartphone!
Wii Nunchuck Mouse
Bring console-style motion control to your PC.