Analog multimeters use a needle indicator and scale to show readings, while digital multimeters (the dominant style today) show numeric readings on an LCD, LED, or other electronic display.

Analog dials used to be a pretty common way ... and it’s combined with a MF-110A multimeter. It’s super easy to buy that stuff and start tinkering with the concept yourself.

Whereas a typical scale would then simply show the resulting number on an LCD display, [Mirko] decided to use a moving coil meter driven by the Arduino’s analog output. That meter was originally ...