Connect to Digital Pin 2 of the Arduino Uno (Interrupt 0).

To convert these pulses into a readable rate (Liters per Minute), the formula used is:

If typing "YF-S201" yields no results, your library files are likely in the wrong directory. Ensure they are placed in the ProgramData path of Labcenter Electronics rather than the Program Files user directory.

Write this code in the Arduino IDE, compile it, and export the compiled binary ( .hex file) to upload into your Proteus Arduino model.

Search online repositories like GitHub or engineering forums for the "YF-S201 Proteus Library". Ensure you download a verified zip folder. When extracted, you will typically find two crucial files: YFS201Library.IDX YFS201Library.LIB 2. Locate Your Proteus Library Folder

. To use it, you must download a third-party library or simulate it using a custom setup with a signal generator or potentiometer. Core Review of the YF-S201 Proteus Library Functionality & Simulation External Library Required: