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#pragma once #include <Arduino.h> namespace homekit { class StopWatch { private: unsigned long time; public: StopWatch() : time(0) {}; inline void save() { time = millis(); } inline bool elapsed(unsigned long ms) { unsigned long now = millis(); if (now < time) { // rollover? time = now; } else if (now - time >= ms) { return true; } return false; } }; }