Building A Digital Compass With An Arduino. 8 Comments . by: Lewin Day. July 12, 2023. Title: Copy. ... which is hooked up to a string of WS2812B LEDs and a small OLED display.

The build is open-source, and designed to work with strings of 60, 120, or 180 WS2812B LEDs. An Arduino Nano is charged with running the show, capturing audio via its analog-to-digital converter.