// Pseudo-code for Proteus Simulation Testing int sensorValue = analogRead(A0); float voltage = (sensorValue / 1024.0) * 5.0; // Remove the 2.5V DC offset float ac_amplitude = abs(voltage - 2.5) * 2;

// Map it (Adjust these multipliers based on your simulation AC input) float mains_voltage = ac_amplitude * 110.0;

But don't scrap your simulation yet. Here is the professional workaround to simulate AC voltage monitoring perfectly in Proteus. Instead of hunting for a broken library, we recreate the electrical behavior of the ZMPT101B. The module outputs an AC voltage centered around 2.5V (Vcc/2). The amplitude of this AC signal increases linearly with the input mains voltage.

Struggling to find a ZMPT101B library for Proteus? Learn how to create a custom simulation model, use an alternative approach with an AC transformer, and test your Arduino code without shock hazards. The Problem: Virtual AC Sensing The ZMPT101B is the go-to module for measuring AC mains voltage (110V/220V) using a microcontroller. It provides an isolated, rectified output that makes it safe for Arduino and ESP32.

However, if you try to search for a native "ZMPT101B Library for Proteus," you will hit a wall. Because most simulation models for complex signal conditioning modules are proprietary or simply don't exist for free.

How to Simulate AC Voltage Measurement using ZMPT101B in Proteus (No Hardware Needed)