As was the case with the LilyPad Arduino, the rationale behind Arduino Gemma lies in the intention of giving the community a tool with which they can create their own projects and literally wear them, sewn to clothing, in bracelets, pendants ... turning these into a system loaded with sensors and actuators that make it much more interesting and functional.
Personally, I think it may be one of the best ideas the community has had since thanks to the thousands of developers For the Arduino platform that exists, sure that the union of several can result in simply impressive projects. A test, although early, we have it in the orientation mini-tutorial that I want to present to you today.
This kind of guide has been created by Becky stern, from Adafruit, which shows us how simple it can be to make your own bracelet with a very simple functionality, if the system detects that we are not moving for a full hour, it will vibrate in a subtle way to encourage us to move and thus do exercise.
I leave you with a gallery of images and I encourage you to take a look at the video on these lines since you will surely like it and even, as is my case, will encourage you to build your own.