I am 14 years old and I like climbing and swimming, but I also love soldering, playing the drums and aikido.
Project for Google Science Fair 2014: A biofeedback with a pulse sensor that allows jogging in streetview. After 2-3 pulses the view is moved on... NXT, EV3 and Arduino with pulse sensor (regional price award)
Project for science fair - the sensor measures the resistance between different pairs of electrodes to estimate the foam, water and air-level in water. NXT with IO-Extenter and Multiplexer (second place NRW, first place environment awards)