Yf-s201: Proteus Library
C:\Program Files (x86)\Labcenter Electronics\Proteus 8 Professional\Drivers
One of the most powerful features of Proteus is its ability to simulate an Arduino board running your own code. You can combine this with the YF-S201 library. Here is a basic outline:
Compile your Arduino code and locate the .hex output file. Double-click the Arduino UNO component in Proteus and upload the .hex file to the program file section. yf-s201 proteus library
Example Arduino code for reading the YF-S201 sensor using interrupts to get flow rate and total volume.
Which you are planning to use (Arduino, ESP32, PIC, etc.) Your Proteus version Double-click the Arduino UNO component in Proteus and
This model simulates the sensor's output: a square wave whose frequency increases with flow rate.
Connect this to Digital Pin 2 on the Arduino Uno. Pin 2 corresponds to External Interrupt 0 ( INT0 ), which is vital for accurately counting high-frequency pulses. Connect this to Digital Pin 2 on the Arduino Uno
*YF-S201 Hall Effect Flow Sensor *Output Pulse: 450 Hz min, 4.5 kHz max *Frequency = 7.5 * Flow (L/min)
| Problem | Likely Cause | Solution | | :--- | :--- | :--- | | No pulses on oscilloscope | Missing pull-up resistor | Add a 10k resistor from SIG to VCC | | Frequency too high/low | Incorrect conversion math | Use ( F = 4.5 \times Flow(L/min) ) | | Microcontroller not detecting edges | Voltage level mismatch | Ensure pulse amplitude = 5V for 5V logic | | Simulation runs too slow | Too many analog nodes | Use digital primitives ( DPULSE instead of VPULSE ) | | Cannot vary flow in real-time | Using static generator | Replace with VCO + potentiometer |
Use a or Molex connector :
As water flows through the valve, it turns the rotor. The rotor’s magnet spins past the Hall effect sensor, generating electrical pulses.
