Check the "Reference Voltage" in your code. Proteus defaults to 5V; if your MCU is set to 3.3V, your math will be off.
If the simulation runs slowly, remove unnecessary "Animation" effects from the component properties. Conclusion voltage sensor proteus library
Search for "Voltage Sensor Proteus Library zip" from a trusted engineering blog. Extract: You will usually find two files: .LIB and .IDX . Check the "Reference Voltage" in your code
If you don't want to install external files, you can create a highly accurate voltage sensor using the method. This is exactly how physical 0-25V voltage sensor modules work. Components Needed: Resistor R1 (30kΩ) Resistor R2 (7.5kΩ) DC Voltage Source (The source you want to measure) Arduino Uno (or any MCU) DC Voltmeter (For visual verification) The Circuit Logic: The output voltage ( Voutcap V sub o u t end-sub ) is calculated as: Conclusion Search for "Voltage Sensor Proteus Library zip"
Use the following logic in your Arduino IDE:
Hit the "Play" button. Adjust the input voltage and watch the Virtual Terminal update with the real-time voltage reading. Troubleshooting Common Issues
float vout = 0.0; float vin = 0.0; float R1 = 30000.0; float R2 = 7500.0; int value = analogRead(A0); vout = (value * 5.0) / 1024.0; vin = vout / (R2 / (R1 + R2)); Use code with caution.