I made a silly hat that tells you which way is North. It tells the people around you where it is via LEDs, and it tells you via a discretely concealed buzzer. I’ve been remiss in posting a writeup about it, but here goes:
I made a silly hat that tells you which way is North. It tells the people around you where it is via LEDs, and it tells you via a discretely concealed buzzer. I’ve been remiss in posting a writeup about it, but here goes: