Open Proteus. In the window (press the "P" key), type YF-S201 or YFS201 in the search bar. The component should appear. If it doesn’t, double-check the folder path and file integrity.
Close Proteus entirely. Copy both the .IDX and .LIB files and paste them into the Proteus installation library folder. The path varies depending on your version:
void pulseCounter() pulseCount++;
Observe the LCD display interface grid. The system will process incoming virtual signal pulses from your frequency generator block, update the values instantly, and display the accurate calculated volumetric liquid stream metrics. If you'd like, let me know: yf-s201 proteus library
After you have copied the files, close and restart the Proteus software. This action forces the software to refresh its database of components.
Paste both the .LIB and .IDX files directly into this LIBRARY directory.
Before simulating, it is crucial to understand how the physical sensor works. The YF-S201 consists of a plastic valve body, a water rotor, and a magnetic hall-effect sensor. Pinout and Electrical Specifications VCCcap V sub cap C cap C end-sub (5V to 24V DC) Black Wire: GND (Ground) Yellow Wire: Pulse Output (Digital Signal) Working Principle Open Proteus
Since the YF-S201 is essentially a Hall Effect sensor generating pulses, you can simulate it in Proteus using two methods: the (easiest) or the Potentiometer + ADC Method (mimics hardware circuits).
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.
This guide assumes you are using or newer (Proteus 9/10). The process is similar across versions. If it doesn’t, double-check the folder path and
Place the PULSE generator tool from the Left Generator Toolbar. Connect its positive terminal to Digital Pin 2 of the Arduino. Pin 2 supports external hardware interrupts ( INT0 ), which are necessary for accurate pulse tracking.
Input 30Hz (or its equivalent time period of 33.33ms ) into the frequency configuration field. Writing the Arduino Simulation Code