Avoid random file-sharing websites. While Proteus libraries are not highly malicious, always scan downloaded files with antivirus software.
Installation & usage (brief)
By using Proteus’ built-in pulse generators or a voltage-controlled oscillator, you can accurately model the YF-S201’s digital output across variable flow rates. For reusable designs, you can create a custom symbol that packages these primitives.
Download the YF-S201 Proteus library files (usually .LIB and .IDX files) from reputable sources like The Engineering Projects .