1. Introduction The ZMPT101B is a popular, low-cost AC voltage sensor module designed for measuring mains voltage (up to 250V AC) using a microcontroller (e.g., Arduino, ESP32). It is based on a precision voltage transformer (ZMPT101B), an operational amplifier, and a built-in potentiometer for calibration. The module outputs an analog voltage (typically 0–5V DC) proportional to the AC input, making it compatible with ADC channels of most microcontrollers.
Run the simulation in Proteus VSM and observe the serial output. | Aspect | Simulation Reality | |--------|--------------------| | Isolation | No real isolation – but model behaves correctly | | Phase shift | Not critical for RMS measurement | | Noise & harmonics | Not modeled | | Temperature drift | Not simulated | | Transient response | Model may oversimplify | zmpt101b proteus