Yf-s201 Proteus Library May 2026

// YF-S201 Flow Sensor Simulation Code for Proteus volatile int pulseCount = 0; float flowRate = 0.0; float totalLiters = 0.0; unsigned long oldTime = 0; void pulseCounter()

Introduction In the world of embedded systems and IoT projects, measuring physical parameters like water flow is a common requirement. Whether you are building a smart water meter, a coffee machine flow controller, or an industrial coolant monitor, the YF-S201 water flow sensor is a popular, affordable, and reliable choice. yf-s201 proteus library

The YF-S201 is a Hall-effect-based water flow sensor. It consists of a plastic valve body, a rotor (impeller), and a Hall-effect sensor. When water flows through the sensor, the rotor spins. A magnet attached to the rotor activates the Hall-effect sensor, which generates a square wave pulse. The frequency of this pulse is directly proportional to the flow rate. // YF-S201 Flow Sensor Simulation Code for Proteus

However, before soldering components or writing firmware for a physical microcontroller, every smart engineer simulates the circuit. This is where (by Labcenter Electronics) shines. But Proteus does not come with a built-in component for every sensor. To simulate the YF-S201, you need a dedicated YF-S201 Proteus Library . It consists of a plastic valve body, a

void loop()

Serial.begin(9600); pinMode(2, INPUT_PULLUP); // Enable internal pull-up attachInterrupt(digitalPinToInterrupt(2), pulseCounter, FALLING); oldTime = millis();