ADIY ZMPT101B AC Single Phase Voltage Sensor Module

ADIY ZMPT101B AC Single Phase Voltage Sensor ModuleDescription The ADIY ZMPT101B AC Voltage Sensor is a high precision module designed for measuring AC mains voltage up to 250V. Built around the ZMPT101B micro precision voltage transformer, this module provides galvanic isolation, ensuring your Arduino or Raspberry Pi remains safe from high voltage spikes. Unlike simple resistive dividers, the ADIY module features an onboard OP AMP (Operational Amplifier) circuit, allowing you to calibrate and adjust

Description

The ADIY ZMPT101B AC Voltage Sensor is a high-precision module designed for measuring AC mains voltage up to 250V. Built around the ZMPT101B micro-precision voltage transformer, this module provides galvanic isolation, ensuring your Arduino or Raspberry Pi remains safe from high-voltage spikes. Unlike simple resistive dividers, the ADIY module features an onboard OP-AMP (Operational Amplifier) circuit, allowing you to calibrate and adjust the analog output signal for high-accuracy power monitoring. It is the perfect choice for smart energy meters, over-voltage protection circuits, and IoT power monitoring systems.

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Specifications

• Voltage Range: 0V to 250V AC
• Output Signal: Analog (Sine wave shifted to VCC/2)
• Operating Voltage: 5V DC
• Isolation: Galvanic Isolation via Transformer
• Onboard Components: Multi-turn Potentiometer (for Gain Adjustment)
• Precision: Class 0.5 (High Accuracy)
• Operating Temperature: -40°C to +70°C
• Dimensions: Compact PCB for easy mounting

Applications

• Energy Monitoring: Building DIY smart meters to track household electricity usage.
• Safety Equipment: Monitoring for brownouts, surges, or phase failures in industrial setups.
• IoT Projects: Logging AC voltage data to the cloud via ESP8266 or ESP32.
• Inverter Testing: Verifying the output stability of pure or modified sine wave inverters.
• Education: Demonstrating AC waveform analysis on an oscilloscope or microcontroller.

Usage Notes

• Calibration: Use the onboard multi-turn potentiometer to adjust the amplitude of the output sine wave to fit within the 0-5V range of your microcontroller's ADC.
• Safety Warning: This module connects directly to AC Mains (110V-250V). Ensure all connections are insulated and do not touch the high-voltage side of the board while it is powered.
• Code Integration: Since the output is an AC sine wave centered at 2.5V, your code should sample the peak-to-peak values to calculate the RMS voltage.

Package Includes

• 1 × ADIY ZMPT101B AC Voltage Sensor Module