Finally I put my bicycle computer into a waterproof box. I guess it’s not 100% waterproof but at least the computer will be safe and dry in case of light rain.
I used and electrical box for outdoor, designed to keep the receptacle protected from the weather. The Arduino, components and LCD screen fits perfectly in the box 🙂
I still have lots of wires around, so it will be my next priority to make the handlebar a bit more nice and tidy 🙂