Ever need something that you can wear to make yourself much more visible to those around you, like when jogging or riding a bike? If so, then this USB-rechargeable RGB LED bracelet is just the thing.
While there are certainly other lighting solutions for pedestrians, this one has several interesting features to set itself apart. First, it can automatically sense motion to turn itself on and off to conserve battery power when not needed. Second, it features a row of extremely bright RGB LED modules, allowing it to display over 15 flashing patterns in all colors of the rainbow to signal your presence to others nearby.
Of course, safety applications are the first thing that pop into one’s mind with a device like this, but simply being able to find friends at a concert or similar where cell phone reception can be spotty would also be a great use. Alternatively, if this doesn’t have the features you’re after, it’s possible to make something similar, or even mod the actual bracelet itself to do your bidding!
Image Source: Hackaday.io
For another take on this type of bracelet, you could also print out a hard shell for your device, similar to what’s seen in this Hackaday.io post. While it might not be as good for running, it could work better in circumstances more appropriate for traditional(ish) jewelry.
