Raspberry pi sense hat as used on tim peake s astro pi mission raspberry pi sense hat the b sense hat b is an add on board for the raspberry pi creating such an innovative and useful experimental tool called the b astro pi b that it has even been used on the b international space station b to carry out experiments during the b principia b mission during this mission the british astronaut b tim peake b used the raspberry pi and the sense hat to run experiments that were cr