#ifndef __PHYSICALSPEAKER_H #define __PHYSICALSPEAKER_H #include class PhysicalSpeaker { public: virtual ~PhysicalSpeaker() {} virtual void begin() = 0; virtual void toggle(int64_t c) = 0; virtual void maintainSpeaker(int64_t c, uint64_t microseconds) = 0; virtual void beginMixing() = 0; virtual void mixOutput(uint8_t v) = 0; }; #endif