This Arduino machine will sort your Skittles by color

Arduino Team July 20, 2016

Do you just really hate yellow Skittles? Only love the red ones? Well, why waste your time sorting them out yourself when an automated machine can do it for you? As part of a recent tutorial, Dejan Nedelkovski has built what we calls the “Arduino Color Sorter” using a TCS3200 color sensor, two hobbyist servo motors, and an Arduino Nano. Read the rest of this entry »

Turn your old cellphone into a smartwatch

Arduino Team July 20, 2016

Do you have an old cellphone lying around somewhere? Don’t know what to do with it? Time to blow off that dust and convert the ‘dumb’ device into a smartwatch! This is exactly what Tinkernut has done. The DIY wearable not only tells time, but connects wirelessly to a smartphone over Bluetooth and notifies its user of incoming calls and messages via light and vibration.

The build itself uses an LCD screen and vibrating motor from a Nokia 1100 along with an Arduino Pro Mini to drive the system. A 3.7V 1100mAh rechargeable battery powers the gadget. All the electronics are soldered together to a perfboard, and housed inside a 3D-printed case. Read the rest of this entry »

Getting Started with Johnny-Five for IoT

Arduino Team July 19, 2016

Interested in the world of hardware hacking, but feeling left out because you just don’t have the time to learn another language? Or maybe you aren’t comfortable using Sketch to program? Have no fear, you can easily use JavaScript to program boards like Arduino and Genuino. Yes, just JavaScript!

In this series of video, PubNub’s Tomomi Imura shows you how to start hacking an Arduino with Node.js using Johnny-Five, a JavaScript Robotics Framework.

Part one of this tutorial covers:

  1. Setting up a board.
  2. Building the Hello World of hardware, a LED blink.
  3. Writing your Johnny-Five code to make it blink programmatically.

Enjoy the tutorial!


Build your own coin-operated Wi-Fi hotspot ticketing system

Arduino Team July 18, 2016

Reddit user “jeff122885” has come up with a fairly simple yet clever coin-operated ticketing system for his Wi-Fi network. The setup consists of a Ch-926 multi-coin acceptor, a MikroTik Groove, and an Arduino Uno with a microSD card module. The unique password for the hotspot is stored in the SD card and read by the Arduino.

Once the coins are deposited, the voucher code, Wi-Fi name, duration, cost, and instructions on how to connect are printed onto a receipt. You can see it all in action below!

Lawn Da Vinci is an open-source, remote-controlled lawn mower

Arduino Team July 18, 2016

Inspired by the one seen in Honey, I Shrunk the Kids, Blake Hodgson has built a remote-controlled lawn mower of his own dubbed ”Lawn Da Vinci.”

The robotic machine’s frame is made from angle iron and steel, while its wheels and motors were taken from a mobility scooter. Power is supplied by a pair of 12V car batteries wired in series, and it’s driven across the yard with an RC airplane remote. Read the rest of this entry »

OMG, this DIY split flap display is awesome

Arduino Team July 15, 2016

Let’s face it, there’s something magical about split flap displays. Common throughout older airports and train stations, the electromechanical devices are used to show changeable alphanumeric text (e.g. arrival and departures), fixed graphics, or in Jonathan Odom’s case, Internet slang.

With three-letter abbreviations like BRB, LOL, OMG and SMH commonplace in today’s smartphone and online conversations, the Maker decided to bring text and animation back to its mechanical roots with his own split flap display. As you can see in the video below, an arcade button under each frame enables him to cycle through all 26 letters to spell out his thoughts in acronym form, while a fourth frame reveals an animation of the very first cat video (by Eadweard Muybridge). Read the rest of this entry »

Throwback: Maker uses Arduino to get revenge on his noisy neighbors

Arduino Team July 14, 2016

For our throwback project of the week, we stumbled upon a YouTube video that dates all the way back to 2012. And while the viral clip itself (which has over 1.4M views) may be a few years old, the problem it solves is timeless.

Unfortunately, you don’t get to choose your neighbors; however, what can choose is how you put up with them. After growing tired of the folks next door failing to turn down their stereo, Maker “Jamil” came up with an ingenious way to put an end to the noisy behavior: fight the loud music with, well, even louder music. Read the rest of this entry »

Maker builds his own Ghostbusters proton pack

Arduino Team July 14, 2016

Anyone who has ever watched Ghostbusters is surely familiar with the iconic proton pack–a handheld wand connected to a backpack-sized particle accelerator used for capturing ghosts. With a remake of the ‘80s flick about to hit theaters, what better time for a DIY prop equipped with full-featured user control and Hollywood-like effects?

That’s exactly what John Finocchiaro has done using a bunch of household items, including a five gallon bucket for the cyclotron, a garlic powder container for the N-Filter, a hairbrush for the PKE meter, spark plug wire, cardboard tubes, pill bottles, handles from power tool cases, a couple electrical boxes, and some other miscellaneous parts. Read the rest of this entry »

Interactive sidewalk plays music to your shadows

Arduino Team July 13, 2016

Designed by Montreal studio Daily tous les jours, Mesa Musical Shadows is a public installation that turns the sidewalk of Arizona’s Mesa Arts Center into a super-sized dance pad which reacts to the shadows of passersby with the sounds of singing.

Shadows cast on different tiles trigger different voices, all while singing in harmony. Length of shadow is dependent upon the season, the time of day and the weather; meaning, a visitor may never quite cast the same shadow twice. The sounds themselves also change with the angle of the sun, which makes interacting with the installation a dynamic experience in the morning, midday, evening, and in the middle of the night. As the day turns into night, the tracks shift from upbeat, Pitch Perfect-like acapella to creepier, ominous tones. Read the rest of this entry »

Arduino door lock is activated by opening an incognito window

Arduino Team July 13, 2016

Mike, CEO of the Useless Duck Company, continues to make us laugh with his hilarious Arduino innovations. Despite all the comical projects, which range from a fedora that tips itself to an automated toilet paper-dispensing machine, he may be onto something with one of his more recent contraptions.

If you don’t want Google Chrome to save a record of what you visit and download, you can always surf the web in incognito mode. However, what happens if your loved one bursts into the room without warning? With hopes of solving this all-too-common problem, he has created a door that automatically locks itself whenever you open a private browser–a perfect way to prevent your wife or significant other from catching you… shopping for gifts online. Read the rest of this entry »