Description
The ACS712 5A Hall Effect Current Sensor Module is designed for precise low-current measurement in AC and DC systems. Built around the Allegro ACS712 Hall-effect IC, this module delivers a high-sensitivity analog output, making it ideal for applications where accurate current detection is critical.
With a sensitivity of approximately 185 mV/A, the 5A variant provides better resolution compared to higher-current versions. The output voltage remains centered at VCC/2 when no current flows, allowing easy bidirectional current measurement. Electrical isolation between the measured current path and control circuitry ensures safe operation in embedded and IoT projects.
This module is widely used in battery monitoring, power supplies, energy measurement, robotics, and automation systems.
🔹 Key Features
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Measures AC & DC current up to ±5A
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High sensitivity (~185 mV/A) for accurate low-current measurement
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Based on ACS712 Hall Effect Current Sensor IC
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Analog voltage output
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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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Compact, easy-to-use module for prototyping and production
🔹 Technical Specifications
| Parameter | Value |
|---|---|
| Sensor IC | ACS712 |
| Current Range | ±5A |
| Sensitivity | ~185 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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Battery current monitoring
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Low-power motor control
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Power supply testing
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Energy measurement
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IoT and smart devices
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Robotics and automation
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