How to build a circular LCD clock

by zdw • 10 days ago

12 5 10 days ago

"I also tried with a Raspberry Pi Zero 2, but 512 MB of RAM were too little to run a [clock]"

As we all know it didn't used to be like this! Really hope that a side-effect of the RAMpocalypse is a return to sanity in regards to memory usage.

dmitrygr• 10 days ago

but 512 MB of RAM were too little to run a modern browser, sadly

want to make clock -> need browser...

i do not want to live on this planet anymore

naikrovek• 10 days ago

Yeah that’s kinda how I felt, too.

I would have done this in either Processing, or if it was connecting to something running Plan9 I’d do raw draw commands.

ewy1• 10 days ago

it's a fun hobby project and thanks for documenting it!

but it's a pre-bought circular screen, raspberry pi and a browser... i could use it to ask google the time, the clock is just a formality.

thinking about it a little harder, i guess the focus is not really the project and more so the watch faces.

ortusdux• 9 days ago

Implemented the minute pause of the Swiss railway clocks

The station clocks in Switzerland are synchronised by receiving an electrical impulse from a central master clock at each full minute, advancing the minute hand by one minute. The second hand is driven by an electrical motor independent of the master clock. It takes only about 58.5 seconds to circle the face; then the hand pauses briefly at the top of the clock. It starts a new rotation as soon as it receives the next minute impulse from the master clock.

https://en.wikipedia.org/wiki/Swiss_railway_clock#Technology

How to build a circular LCD clock

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