An Arduino library for Persistence of Vision (POV) projects @IslandRobotics

POV Library is an Arduino library for Persistence of Vision (POV) projects. It’s by shurik179 at Island Robotics under an open MIT License.

This library is for creating Persistence of Vision displays using NeoPixel (WS2812B) or DotStar (APA102) individually addressable LED strips. For smooth effects, DotStars are strongly preferred, as they have much higher refresh rates.

The library is intended for use with boards that contain flash memory chips. It supports two modes:

  • Upload mode. In this mode, the board, when connected to a computer via USB, appears as an external USB drive, allowing the user to upload images in bitmap format. One can also upload a text file with list of images and durations. Note: it is expected that you have already created the FAT filesystem on your flash memory, using SdFat_format example sketch from Sd_Fat library (Adafruit fork)

  • Show mode. In this mode, the board reads the image(s) from the flash memory and shows them on the LED strip one line at a time. Normally, the LED strip would be mounted on a rotating staff/wand/fan blade which would create persistence of vision illusion.

Supported boards

The library uses Adafruit_TinyUSB library; thus, it can only be used with boards supported by this library, such as M4 and RP2040-based boards. Full list can be found at https://github.com/adafruit/Adafruit_TinyUSB_Arduino

We recommend Adafruit Itsy Bitsy RP2040 board as a great and inexpensive option.

See the project on GitHub.


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