GoKawiilHow to build a circular LCD clock
In our kitchen, the only device that displays the time is our oven! :D Looking at it was always a bit annoying.
So I recently built a wall clock from a circular LCD screen! It’s really great because it can display any clock face you want, even ones you code yourself!
If you want one too, here’s how to do it!
Hardware
You’ll need:
Waveshare’s 7 inch circular LCD It’s 1080 x 1080 pixels, and the display area is 7 inches (~18 cm) across. Contrast and brightness are good, and even has multi-touch, which allows some fun interactivity! Originally, I thought I wanted a circular screen that’s a bit larger. But those are really expensive, and I’m perfectly happy with this size.
Raspberry Pi 3-5 This minicomputer will power the clock. The Pi 3B+ seems just enough to render some simple animations. I also tried with a Raspberry Pi Zero 2, but 512 MB of RAM were too little to run a modern browser, sadly. I think a Pi 4 might be a good sweet spot between processing power and price, currently.
A microSD card as your storage, at least 16 GB.
A microSD card reader, to be able to flash the OS on it.
... continue reading