#include <LiquidCrystal.h> LiquidCrystal lcd(12, 11, 5, 4, 3, 2); float voltageRMS = 0; float readValue = 0; float Vref = 2.5; // Output offset of ZMPT101B (adjust based on simulation)
delay(500);
void setup() lcd.begin(16, 2); lcd.print("AC Voltage:"); zmpt101b voltage sensor library for proteus
lcd.setCursor(0,1); lcd.print(" "); lcd.setCursor(0,1); lcd.print(voltageRMS); lcd.print(" V AC"); #include <LiquidCrystal
void loop() // Sample multiple times to find peak float maxV = 0; for(int i=0; i<200; i++) readValue = analogRead(A0); // 0-1023 float voltage = (readValue / 1023.0) * 5.0; // Convert to 0-5V if(voltage > maxV) maxV = voltage; delayMicroseconds(100); Before we jump into simulation, let’s recap the hardware
Have you used a different AC voltage sensor in Proteus? Let me know in the comments below!
In this post, I’ll walk you through why this library is essential, where to find it, and how to simulate a complete energy monitoring system step-by-step. Before we jump into simulation, let’s recap the hardware. The ZMPT101B is a PCB module built around a precision voltage transformer (ZMPT101B). It takes high AC voltage (up to 250V AC) and outputs a low AC signal (0-5V) proportional to the input. Most importantly, it provides galvanic isolation between the mains side and your microcontroller.