Looking for a digital recreation of the classic analog volume unit (VU) meter? If you’ve got an Arduino, a few passive components, and a SSD1306 OLED, then [mircemk] might have the answer for… ...

You’ll need additional modules (~$200 each) for digital and analog IO. On the other side, Raspi, Arduino and other toys have some IO onboard. But (I hope :) no one will ever use them for ...