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A RP2040 PIO program for 6-leds and 5-leds Charlieplexing.
The PIOs integrated in the RP2040 microcontroller enable the refresh to be performed automatically, without processor intervention. The 6-leds version requires 11 PIO instructions, the 5-leds version requires 7 PIO instructions. This library uses Raspberry Pi Pico/RP2040 board manager by Earle F. Philower, III, see https://github.com/earlephilhower/arduino-pico
Maintainer: Pierre Molinaro
This library is compatible with all architectures so you should be able to use it on all the Arduino boards.
To use this library, open the Library Manager in the Arduino IDE and install it from there.