A nicer voltmeter clock

3 comments

• JKCalhoun 38 minutes ago
  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.
• tra3 41 minutes ago
  This is gorgeous. I really need to hunker down and learn 3d modeling. It unlocks so many options from cnc to 3d printing.
  [-]
  • JKCalhoun 37 minutes ago
    In my experience, having a project/goal will make it do-able for you. You have both the motivation and an target (dare I say, North Star?) in sight.
• floxy 46 minutes ago
  Nice! Needs just a tweak to prevent the overshoot and bounce when going from high to low.
  [-]
  • JKCalhoun 42 minutes ago
    Wut? We add extra lines of code just to get that in digital?

    ;-)