An Arduino watch is a novel idea. However, an Arduino watch with altitude, temperature, and a pedometer installed onto it is even better! Earlier this week, I posted about an Arduino Chess Clock, and this watch was actually made by the same user who created that.
Apparently the Arduino watch was very easy to make. The amounted costs to make this project is also quite cheap. All you’ll need to make this project is a little knowledge on how to use Eagle for designing a PCB, know how to make a PCB board, and a basic watch that you don’t mind dismantling for the project.