Interrupt APIs
The Interrupt class provides APIs to register interrupt handlers for GPIO and configure the interrupts. Interrupts can be configured to trigger on rising edge, falling edge, high level, low level, or any change in the input signal. A single interrupt object can manage multiple GPIO pins with separate callbacks for each GPIO, or separte Interrupt objects can be created (though that uses more memory and CPU as each Interrupt will has its own queue, ISR handler, and task.
Finally, the Interrupt class is also designed to be subclassed if desired to provide additional functionality, or it can of course be included as a member within another class. The Button class provides a very simple implementation of a subclass of Interrupt.