[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!
Continue reading “Get up, Stand up. With a Little Help from the Mindfulness Bracelet”
Two of the ideas we keep at our core here at Hackaday: the free and open exchange of information and ideas; and “why” is the wrong question. These concepts are fully in line with the F.A.T. Lab. The Free Art and Technology Lab lives at the intersection of Open Source and Pop Culture and they’re inviting you to jump into the pool of awesome by joining them for the F.A.T. Gold Show in San Francisco May 21-31.
If you’re unfamiliar with the group, take a look at the video after the break and you’ll easily confirm that you need to check this out. We’ve enjoyed the work of F.A.T. Lab members for years now. [Brian] pointed out part of the importance of the “Open” aspect the group in this post on universal connectors for popular toy blocks. We also covered their collaboration on EyeWriter which shows how to build IR eye tracking for the disabled. The group hosts the Graffiti Research Labs (also a collaborator on EyeWriter); we built their Laser Graffiti project as part of a live Hackaday event in January of last year thanks to the open source code they published.
What will you see at this year’s show? The best work the group has to offer from the last eight years plus some debut exhibits. We wish we could be there but we’re planning to be in LA that weekend for the LayerOne conference.
Continue reading “F.A.T. GOLD San Francisco: May 21-31”
Looking for a fun wearable electronics project? While you can buy specific fabric and conductive thread for your projects, sometimes you can even find conductive fabric where you might not expect it!
In this latest video by Adafruit, [Becky Stern] goes undercover at a fabrics store with her trusty multimeter to find some new material that can be used for electronics projects! While pickings are slim, she made some useful discoveries — most metallic fabrics aren’t conductive, but some are — You’ll definitely need to take your multimeter with you.
Another funny quirk is that some fabrics are only conductive in one direction! Which could make for a really cool project that seemingly defies conventional wiring — or you can sew a conductive thread perpendicular to the continuity to connect it all together.
Continue reading “Poking Around Textiles With Your Multimeter”