ACS712 Current Sensor Module

The 30A Hall Effect Current Sensor Module (ACS712) is a precision current-sensing module designed for real-time AC or DC measurement in electronic circuits. Using the ACS712 Hall-effect linear current sensor IC, this module provides an analog voltage output proportional to the current flowing through it, enabling easy integration with microcontrollers and monitoring systems.

This module is ideal for power monitoring, battery management, motor control, robotics, and DIY electronics projects. Its non-contact Hall-effect design ensures safe current measurement without direct electrical connection, while supporting both positive and negative current flow.

Key Features

• Measures up to ±30A of AC or DC current

• Hall-effect sensor provides isolation between current path and output

• Analog voltage output proportional to sensed current

• Compact and lightweight design for easy integration

• Works with Arduino, ESP32, Raspberry Pi, and other microcontrollers

• Low power consumption and fast response

Specifications

• Sensor IC: ACS712

• Measurement Range: ±30A

• Operating Voltage: 5V DC

• Interface: Analog voltage output

• Sensitivity: 66–185 mV/A (depending on module version)

• Response Time: ~5 μs

• Dimensions: Approx. 30 mm × 20 mm (module)

Pin Description

• VCC: 5V power supply

• GND: Ground

• OUT: Analog voltage output (proportional to current)

• IP+ / IP-: Current input terminals (connect in series with the load)