Proteus Library: Yfs201

void loop() if (millis() - oldTime >= 1000) detachInterrupt(0);

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Introduction In the world of embedded systems and IoT-based flow measurement, the YFS201 water flow sensor has emerged as a popular choice for hobbyists and professionals alike. Known for its affordability, ease of use, and decent accuracy, the YFS201 is frequently paired with Arduino, ESP8266, and STM32 microcontrollers. However, before committing to hardware, every smart developer knows the value of simulation. yfs201 proteus library