Runner and Arduino enthusiast Nikodem Bartnik has created a DIY 100m sprint timer which is placed at the finish line and signals the start of timing via an audible bleep from its integrated speaker.

So you've already outgrown Arduino's most beginner-friendly board, the Uno, and are looking to move on to bigger, more exciting projects. In that case, the Nano family might just be what you need.

Arduino is a good platform if you want to start working with electronics. The platform, specifically the Arduino Nano family, is a set of small form-factor boards that act as microcontrollers, meaning ...