Description
The ACS712 30A Hall Effect Current Sensor Module is a reliable and easy-to-use solution for measuring AC and DC current up to ±30A. Based on the original Allegro ACS712 Hall-effect IC, this module provides an isolated analog voltage output proportional to the current flowing through the onboard copper conductor.
Designed for seamless integration with Arduino, ESP32, Raspberry Pi (with ADC), and other microcontrollers, the sensor outputs VCC/2 at zero current, making it ideal for bidirectional current sensing. It is widely used in power monitoring, motor control, battery management systems, and IoT projects.
This module offers electrical isolation between the measured current path and the control circuit, ensuring safe and accurate current measurement in both hobby and professional applications.
🔹 Key Features
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Measures AC & DC current up to ±30A
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Based on ACS712 Hall Effect Current Sensor IC
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Analog voltage output proportional to current
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Electrical isolation between current path and signal pins
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Zero current output at VCC/2
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Compatible with Arduino, ESP32, Raspberry Pi (ADC), STM32
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Ideal for motor control, power monitoring, IoT & automation
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Compact module, easy to integrate into projects
🔹 Technical Specifications
| Parameter | Value |
|---|---|
| Sensor IC | ACS712 |
| Current Range | ±30A |
| Sensitivity | ~66 mV/A |
| Supply Voltage | 5V DC |
| Output Type | Analog |
| Zero Current Output | VCC / 2 (≈2.5V @ 5V) |
| Isolation Type | Hall Effect |
| Bandwidth | Up to 80 kHz |
| Operating Temperature | -40°C to +85°C |
| Interface | 3-Pin (VCC, OUT, GND) |
🔹 Applications
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Motor current monitoring
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Battery and power supply monitoring
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Over-current protection systems
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Energy measurement projects
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IoT power analytics
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Robotics and automation
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