A nicer voltmeter clock

Funny, I've been playing with panel-meters as well…

I have an analog computer I'm finishing up. I have ADC's to convert the analog to digital to display the values on an LCD (with an ESP32 dev board—it was more flexible than panel meters, cheaper than an oscilloscope).

But because looking at "simulated" panel-meters seemed to kind of undercut the point of the analog computer, I went ahead and created a small PCB to go from my analog computer to a panel meter like the one in the clock.

Running a "Spring + Mass" simulation on the analog computer and seeing both the LCD/ESP32 representation of a panel meter and an actual panel meter move in sync brought it all home.

I always enjoy projects like this. Both because the are artistically neat and because the give me all sorts of ideas.

So sexy! I could probably build the electronics easily enough, but such projects need workworking tools I just don't have room for in my tiny flat.

(nor would the missus be pleased for me to buy them - but that's another matter)

Cool! I was at least hoping for an op amp or two for the circuit however ;)

Nice! Needs just a tweak to prevent the overshoot and bounce when going from high to low.

This is beautiful, and I like it a lot, but I was slightly disappointed to find that they do not function by increasing the voltage as the day goes on. But then I remembered that that's how pins work. It IS measuring voltage!

I expected seconds arrow to move much more smoothly than in the video

is 10Hz control just too slow?

This is gorgeous. I really need to hunker down and learn 3d modeling. It unlocks so many options from cnc to 3d printing.

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