Its one of those ‘silly’ little things that I have been wanting to build since I was about a teenager.
We dabbled with mirrors attached to speakers and bounced lasers off them to make X-Y patterns that moved to the music.
Then we then moved to the USA and finally got a better x-y scanner laser light show. And while you could download animations to it, it did not include a clock.
Yes. A clock. I have seen these oscilloscope clocks for years, but never had the time to scratch build the electronics to drive the display. Not that I looked that hard, but they were never offered as a kit. Mostly the micro controller programming is the catch for me. But anyway. Fast forward many years.
I was reading Hackaday and they talked about a cro clock from a bit of code running in a web browser.
It plays the required audio out the computer speakers.
I fired it up on the work computer and sure enough, a low drone with a solid one second tick.
My mind jumped then to using Dan and Garys Pi to open the web browser and play the tone out the Pi audio port. The only cro I have these days is the little Kickstarter one I bought a few years back.
Putting the two together on my desk….
Goofy, but so much cute.
We will keep an eye out for a cheap oldish cro at a year sale or on craigslist or something. Make a nice desk clock with the Pi sitting above it…..