void loop() if(millis() - oldTime > 1000) //every 1 second detachInterrupt(0); flowRate = (pulseCount / 7.5); // Liters per minute lcd.setCursor(0,0); lcd.print("Flow: "); lcd.print(flowRate); lcd.print(" L/min "); pulseCount = 0; oldTime = millis(); attachInterrupt(digitalPinToInterrupt(2), pulseCounter, RISING);

void setup() pinMode(2, INPUT_PULLUP); attachInterrupt(digitalPinToInterrupt(2), pulseCounter, RISING); lcd.begin(16,2); oldTime = millis();

If you have typed into a search engine, you are likely tired of broken links, manual modelling errors, or spending hours trying to simulate a water flow system with an Arduino or PIC. Today, we end that search. This article provides an exclusive, deep-dive guide into the YFS201 library for Proteus, including how to install it, how it works, and how to simulate a complete water flow monitoring system. Part 1: What is the YFS201 Sensor? (And Why Simulate It?) Before we discuss the library, we must understand the hardware.