Posts | Comments

Planet Arduino

Archive for the ‘wearable hacks’ Category

Join us this Friday at noon PDT for a Hack Chat with Tenaya Hurst of Arduino. If you’ve been one of the big Maker Faires over the last few years (or innumerable other live events) and stopped by the Arduino area you’ve probably met Tenaya. She is the Education Accounts Manager for Arduino and loves working with wearable electronics.

Come and discuss maker education and the role Arduino is playing in getting our students excited about electronics, and STEAM education in general. Tenaya will also be discussing a new wearable tech kit she’s been working on. We hope to see the gear in person at Bay Area Maker Faire next week.

Here’s How To Take Part:

join-hack-chatOur Hack Chats are live community events on the Hack Chat group messaging.

Log into, visit that page, and look for the ‘Join this Project’ Button. Once you’re part of the project, the button will change to ‘Team Messaging’, which takes you directly to the Hack Chat.

You don’t have to wait until Friday; join whenever you want and you can see what the community is talking about.

Filed under: Arduino Hacks, Hackaday Columns, wearable hacks

[Alain Mauer] wanted to build something like a Google Glass setup using a small OLED screen. A 0.96 inch display was too large, but a 0.66 inch one worked well. Combining an Arduino, a Bluetooth module, and battery, and some optics, he built glasses that will show the readout from a multimeter.

You’d think it was simple to pull this off, but it isn’t for a few reasons as [Alain] discovered. The device cost about 70 Euro and you can see a video of the result, below.

The video shows a common problem and its solution. You are probing a mains circuit and have to look away to read the voltmeter. With the glasses, you don’t have to look away, the voltage floats in your field of vision.

These reminded us of Pedosaglass which we covered earlier. Of course, it used a different optical solution. We’ve also seen Google Glass knockoffs as part of our Hackaday prize entries.

Filed under: Arduino Hacks, The Hackaday Prize, wearable hacks

Bicycle riders can never be too visible: the more visible you are, the less chance there is someone will hit you. That’s the idea behind the Arduibag, a neat open-source project from [Michaël D’Auria] and [Stéphane De Graeve]. The project combines a joystick that mounts on the handlebars with a dot matrix LED display in a backpack. By moving the joystick, the user can indicate things such as that they are turning, stopping, say thank you or show a hazard triangle to warn of an accident.

The whole project is built from simple components, such as an Adafruit LED matrix and a Bluno (an Arduino-compatible board with built-in Bluetooth 4.0) combined with a big battery that drives the LED matrix. This connects to the joystick, which is in a 3D printed case that clips onto the handlebars for easy use. It looks like a fairly simple build, with the larger components being mounted on a board that fits into the backpack and holds everything in place. You then add a clear plastic cover to part of the backpack over the LED matrix, and you are ready to hit the road, hopefully without actually hitting the road.

Like any good project, [Michaël] and [Stéphane] aren’t finished with it yet: they are also looking for ways to improve it. In particular, they want to reduce the number of batteries, as there is currently a large battery that drives the display and another smaller one that drives the Arduino.

Filed under: Arduino Hacks, wearable hacks

Every now and then you see a project that makes you smile. It may not be something that will deliver world peace or feed the hungry, but when it opens in your browser in the morning you go to work a bit happier for the experience.

Just such a project is [Radomir Dopieralski’s] set of wearable mechatronic cat ears. A cosplay accessory that moves as you do. Very kawaii, but fun.

You may have seen the commercially available Necomimi brainwave activated mechatronic ears. [Radomir’s] version does not share their sophistication, instead he’s using an accelerometer to detect head movement coupled to an Arduino Pro Mini driving a pari of servos which manipulate the ears. He provides the source code, and has plans for a miniaturised version using an ATtiny85 on its own PCB.

Amusing cuteness aside, there are some considerations [Radomir] has had to observe that apply to any a head-mounted wearable computer. Not least the problem of putting the Pro Mini and its battery somewhere a little more unobtrusive and weatherproof than on top of his head. He also found that the micro-servos he was using did not have enough range of movement to fully bend the ears, something he is likely to address in a future version with bigger servos. He’s yet to address a particularly thorny problem: that a pair of servos mounted on your head can be rather noisy.

We’ve covered quite a few cosplay stories over the years. This is not even our first cat ear story. More than one example of a Pip Boy, a HAL 9000 costume, and a beautifully made Wheatley puppet have made these pages, to name a few. So scroll down and enjoy [Radomir’s] video demonstration of the ears in action.

Filed under: Arduino Hacks, wearable hacks

Snow skiing looks easy, right? You just stay standing, and gravity does the work. The reality is that skiing is difficult for beginners to learn. [19mkarpawich] loves to ski, but he was frustrated seeing crying kids on skis along with screaming parents trying to coach them. Inspired by wearable electronics, he took an Arduino, an old jacket, some LEDs, and created Ski Buddy.

The brains in the jacket consist of an Adafruit Flora, accelerometer, and a battery pack. Conductive thread connects to LED sequins. The jacket can help teach linking turns, parallel skiing, hockey stops, and gradual pizza stopping. In addition to the build details and some notes on where not to place sensors (doubtlessly learned the hard way), [19mkarpawich] also does a detailed explanation of the software and how to use the jacket.

You can see a very short video demonstration of Ski Buddy below. We’ve seen more wearables lately, some of them pretty creative. Maybe it is time to learn how to sew if you can’t already.

Filed under: Arduino Hacks, wearable hacks

Google Glass kind of came and went, leaving one significant addition to the English language. Even Google itself used the term “glasshole” for people who used the product in a creepy way. We can’t decide if wearing an obviously homemade set of glasses like the ones made by [Jordan Fung] are more creepy, give you more hacker cred, or just make you look like a Borg. Maybe some combination of all of those. While the cost and complexity of developing for Google Glass was certainly a barrier for hacking on that hardware, this project is just begging for you to build your own and run with the concept.

[Jordan’s] build, called Pedosa Glass, really is pretty respectable for a self-built set up. The Arduino Nano is a bit bulky, and the three push buttons take up some room, but it doesn’t kill the ability to mount them in a glasses form-factor. An FLCoS display lets you see the output of the software which [Jordan] is still developing. Right now features include a timer and a flashlight that uses the head-mounted white LED. Not much, we admit, but enough to prove out the hardware and the whole point would be to add software you wanted.

Admittedly, it isn’t exactly like Google Glass. Although both use FLCoS displays, Pedosa Glass uses a display meant for a camera viewfinder, so you don’t really see through it. Still, there might be some practical use for a little display mounted in your field of vision. The system will improve with a better CPU that is easier to connect to the network with sensors like an accelerometer — there’s plenty of room to iterate on this project. Then again, you do have an entire second ear piece to work with if you wanted to expand the system.

Check out the video demo after the break.

We’ve covered cool head-mounted displays before. Some of them have been pretty sophisticated. However, Pedosa Glass looks like the best bet to use as a base for your own explorations.

Filed under: Arduino Hacks, wearable hacks

Giant wristwatches are so hot right now. This is a good thing, because it means they’re available at many price points. Aim just low enough on the scale and you can have a pre-constructed chassis for building your own smartwatch. That’s exactly what [benhur] did, combining a GY-87 10-DOF module, an I²C OLED display, and an Arduino Pro Mini.

The watch uses one button to cycle through its different modes. Date and time are up first, naturally. The next screen shows the current temperature, altitude, and barometric pressure. Compass mode is after that, and then a readout showing your step count and kilocalories burned.

In previous iterations, the watch communicated over Bluetooth to Windows Phone, but it drew too much power. With each new hardware rev, [benhur] made significant strides in battery life, going from one hour to fourteen to a full twenty-fours.

Take the full tour of [benhur]’s smartwatch after the break. He’s open to ideas for the next generation, so share your insight with him in the comments. We’d like to see some kind of feedback system that tells us when we’ve been pounding away at the Model M for too long. 

[via Embedded Lab]

Filed under: Arduino Hacks, wearable hacks

Get up, Stand up. With a Little Help from the Mindfulness Bracelet

adafruit, arduino hacks, becky stern, bracelet, GEMMA, wearable, wearable hacks Commenti disabilitati su Get up, Stand up. With a Little Help from the Mindfulness Bracelet 

[Becky Stern] has created the mindfulness bracelet, a wearable which looks great and serves an important purpose. The bracelet buzzes every hour to remind you to stand up and take a break from work, soldering, gaming, or whatever it is you may be doing. The bracelet is made up of interlinked figure 8 shapes of leather, though [Becky] says rubber from a bicycle inner tube works great as well. The final shape reminds us of the link belts sometimes found on lathes or other industrial equipment. The links are the perfect size to slip an Arduino Gemma in, along with a battery and vibrating motor. A NPN transistor, diode, and resistor round out the entire bill of materials for this design. This bracelet is a heck of a lot cheaper than the Apple watch feature which inspired it!

The time interval is set in the code to 1 hour, and can be adjusted by the user. Although the times are stored in milliseconds, the design does use the ATtiny85’s Watchdog Timer (WDT) to conserve power. This means the time can drift up to 30 seconds per hour, which is fine in this application.

Click past the break to see the bracelet in action!

Filed under: Arduino Hacks, wearable hacks

[David Nghiem] has been working with circuitry designed to read signals from muscles for many years. After some bad luck with a start-up company, he didn’t give up and kept researching his idea. He has decided to share his innovations with the hacker community in the form of a wearable suit that reads muscle signals.

It turns out that when you flex a muscle, it gives off a signal called a Surface ElectroMyographic signal, or SEMG for short. [David] is using an Arduino, digital potentiometer and a bunch of op amps to read the SEMG signals. LEDs are used to display the signal levels.

The history behind [David’s] project dates back to the late twentieth century, which he eloquently points out – “Holy crap that was a long time ago”. He worked with the MIT Aero Astro Lab and the Boston University Neuromuscular Research Center where he worked on a robotic arm for astronauts. The idea being to apply an opposing force to the arm to help prevent muscle deterioration.

Be sure to check out [David’s] extensive and well documented work, along with the several videos showing his projects at various stages of completion. If this gives you the electromyography bug, check out this guide on detecting the signals and an application of the concept for robotic prosthesis.

Filed under: Arduino Hacks, wearable hacks

Enigma Machine Wristwatch

arduino hacks, Cipher, clock hacks, code, enigma, enigma machine, wearable hacks, wristwatch Commenti disabilitati su Enigma Machine Wristwatch 

We don’t find smartwatches to be supremely usable yet. This one sets a definition for usefulness. The Enigma machine is of course the cipher process used by the Germans during World War II. This Enigma Machine wristwatch is not only functional, but the appearance is modelled after that of the original machine. With the speckled gray/black case and the Enigma badge branding [Asciimation] has done a fine job of mimicking the original feel.

Driving the machine is an Arduino Pro Mini. We’ve seen Arduino Enigma Machines in the past so it’s not surprising to see it again here. The user interface consists of an OLED display at 128×64 resolution, three buttons, with a charging port to the right and on/off switch on the left.

The device is demonstrated after the break. Quite a bit of button presses are used to set up each of the three encoder wheels. But that’s hardly avoidable when you’re not committing to a full keyboard. We’re pretty impressed by the functionality of [Asciimation’s] interface considering it’s hardware simplicity.

This seems perfect for kids that are proving to have an interest in engineering. They learn about ciphers, embedded programming, and mechanical design and crafting (this is a hand-sewn leather wristband). Of course if you build one and start wearing it into the office we won’t judge.

Filed under: Arduino Hacks, clock hacks, wearable hacks

  • Newsletter

    Sign up for the PlanetArduino Newsletter, which delivers the most popular articles via e-mail to your inbox every week. Just fill in the information below and submit.

  • Like Us on Facebook