“I have bought a tiny OLED display, its clean and clarity draw my attention. But what can I do with itActually, the point is how can I show it off… Lol. Well, when I looked at the poster of The Lord of the Rings, which is my favorite movie series, I got an Idea! How about using this OLED display to make a ring clock? That sounds great, no sooner said than done.
To begin with, I need to select the power supply, clock module, and main-controller for my project.”