Most of my projects so far was more or less for fun , robots , LEDs, mechanics ... , but this time the idea came from an actual need. My grandma started to have more difficulties to keep track of the exact day time due to the deterioration of her vision . So i had to think of something to help her, while there are already commercially available devices , like talking clocks but they are usually not small enough to keep around as they includes radio, the easiest alternative solution probably is to use an app on a phone, but touch screen phones appears to be a bit difficult for visually impaired person , and that would be an expensive solution , moreover where is the fun on that : ).

The details of this project can be found here : http://www.ouslab.com/blog/vibclock-vibrating-clock-from-an-idea-to-a-finished-product/