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An RTTTL parsing and playing library.
This library is aimed at ESP8266-based boards, and uses PWM to create the tones with volume control. It may well work on other Arduino-esque microcontrollers. It interprets the RTTTL specification somewhat freely, adding some new features, but maintaining compatibility with standard RTTTL.
Maintainer: Chris Dennis
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.