41–50 of 73 posts
How to build a circular LCD clock, step 1: buy a circular LCD that looks like a clock. I'm not kidding, that's the extent of the build. They simply connect that display to a computer over HDMI. The only hacking here is browser-based JS for clock animations.
Beat project, but > I also tried with a Raspberry Pi Zero 2, but 512 MB of RAM were too little to run a modern browser, You don't need a browser to display graphics. And you don't need to be a programming whiz either. I'm sure Claude could write some python to render these clock faces.
Beat project, but > I also tried with a Raspberry Pi Zero 2, but 512 MB of RAM were too little to run a modern browser, You don't need a browser to display graphics. And you don't need to be a programming whiz either. I'm sure Claude could write some python to render these clock faces.
512mb or RAM to show the time, what a time we live in.
It's cool I like it, but seems a little overkill on the HW. no matter. One thing though, how is the screen 1080px1080 ? Is it a 1080p square, with the visible pixles a circle cut out of that ? I doubt it's a non rectilinear pixel grid. i guess it's x y coords, rather than cartesian ?
Author here! :) This article is me sharing something that made me really happy, wanting to show others how they can do the same. I see some comments pointing out that the clock wouldn't need to run in the browser. I picked this option to make it simple for folks around me to quickly prototype their own clock faces. This isn't supposed to be the cheapest or most efficient implementation, either; feel free to build you…
Author here! :) This article is me sharing something that made me really happy, wanting to show others how they can do the same. I see some comments pointing out that the clock wouldn't need to run in the browser. I picked this option to make it simple for folks around me to quickly prototype their own clock faces. This isn't supposed to be the cheapest or most efficient implementation, either; feel free to build you…
Could you give a little more information about the 'stack' you're using to display the clock?
From this:
> 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.
...are you essentially displaying a full-screen browser window in the default Raspbian window manager and then running local Javascript for the clock itself?
> I also tried with a Raspberry Pi Zero 2, but 512 MB of RAM were too little to run a modern browser, sadly. I found that the surf browser was efficient enough to run fine on my Raspberry Pi Zero W. YMMV with animations and such, but it's much better than any chromium alternative in my experience.
[1]: https://github.com/NixOS/nixpkgs/blob/nixos-24.11/pkgs/by-na...
[2]: https://github.com/NixOS/nixpkgs/blob/nixos-24.11/pkgs/appli...
https://hackaday.com/2025/02/11/its-always-pizza-oclock-with...