Description

ACS712-5A AC/DC Current Sensor Module

The ACS712-5A AC/DC Current Sensor Module is a highly reliable and precise sensor designed to measure electric current in both AC and DC circuits. Featuring the ACS712 Hall-effect sensor chip, this module provides analog voltage output proportional to the current flowing through it, making it an essential component for power monitoring, energy management, and electronics projects.

This module is widely used in Arduino, Raspberry Pi, ESP32, ESP8266, and other microcontroller-based projects, enabling accurate current measurement for motors, batteries, power supplies, and various electrical devices. Its compact design, ease of use, and wide operating range make it suitable for both hobbyists and professional engineers.

Key Features of ACS712-5A Current Sensor Module

• Current Range: ±5A for both AC and DC currents.

• High Accuracy: Provides precise measurement with minimal error.

• Analog Output: Voltage output proportional to the current, ideal for ADC measurement.

• Hall-Effect Technology: Ensures electrical isolation between the sensing circuit and microcontroller.

• Low Noise: Stable and reliable readings with minimal signal interference.

• Easy Integration: Works seamlessly with Arduino, Raspberry Pi, and other microcontrollers.

• Compact Design: Lightweight and small form factor suitable for embedded projects.

• Wide Voltage Range: Operates with 5V supply voltage, compatible with most microcontrollers.

Technical Specifications

• Sensor Chip: ACS712

• Current Measurement Range: ±5A

• Operating Voltage: 5V DC

• Analog Output: 185 mV/A (for 5A module)

• Response Time: < 5 µs

• Isolation: Hall-effect based electrical isolation

• Operating Temperature: -40°C to +85°C

• Dimensions: Compact PCB for easy mounting

Why Choose ACS712-5A Current Sensor Module?

1. Reliable Current Measurement – The Hall-effect sensor ensures accurate readings for both AC and DC currents without direct electrical contact.

2. Safe Operation – Electrical isolation protects your microcontroller and sensitive electronics from high currents.

3. Easy to Use – Simple wiring with VCC, GND, and Analog Output pins allows quick integration into any project.

4. Versatile Applications – Works for motors, batteries, power supplies, energy monitoring, and automation systems.

5. Arduino and Microcontroller Friendly – Perfect for beginners and professionals using Arduino IDE, ESP32, or Raspberry Pi.

Applications of ACS712-5A Current Sensor Module

• Current Monitoring: Measure current flowing through DC or AC loads.

• Power Management: Monitor energy usage in DIY projects, smart homes, and industrial applications.

• Battery Management Systems: Track charging and discharging currents for lithium batteries.

• Motor Control Projects: Measure current drawn by motors to prevent overload or damage.

• Overcurrent Protection: Integrate with microcontrollers to trigger alarms or cut-offs.

• IoT Projects: Real-time current monitoring and logging for smart devices.

How to Use the ACS712-5A Module

1. Connect the Module – Use VCC to 5V, GND to ground, and OUT to analog input of your microcontroller.

2. Supply Current to Measure – Pass the current-carrying wire through the module’s current path.

3. Read Analog Output – Use ADC of microcontroller to measure the voltage output.

4. Calculate Current – Convert the analog voltage to current using the sensor’s sensitivity (185 mV/A for 5A module).

5. Integrate with Project – Use measured current for monitoring, control, or data logging applications.

This simple setup allows users to monitor and control electrical devices safely and efficiently.

Package Includes

• 1 × ACS712-5A AC/DC Current Sensor Module

Conclusion

The ACS712-5A AC/DC Current Sensor Module is a highly accurate, reliable, and easy-to-use solution for measuring electrical currents in DIY projects, industrial applications, and smart home systems. Its Hall-effect technology, analog output, and wide compatibility make it a must-have tool for engineers, hobbyists, and electronics enthusiasts.

Whether you are building battery monitoring systems, motor controllers, energy meters, or IoT devices, the ACS712-5A provides precise and safe current measurement, enabling smarter and more efficient electronics projects.

Data Sheet