ARDUINO
I took a course named Embedded Systems yeas ago, and in the lab sessions, we programmed arduino differently based on the purpose. I enjoyed that so much, hardware programming gives me a different joy because being able to see what your codes do in physical world is something different.
PIANO
You have probably been hearing a music since you landed on this page, if not, you can click the play button on right. Its name is "Comptine d'un autre été" by one of my favorite composers "Yann Tiersen". I really enjoy listening, especially when I want something relaxing. You can check another my favorite which is "La Valse d'Amélie".