Current Sensor ACS712-5A

ACS712-5A Current Sensor Module – Accurate Low-Current Measurement for Embedded and IoT Systems

The ACS712-5A current sensor module is based on the Allegro ACS712 Hall-effect sensor, designed to measure AC or DC currents up to ±5 amperes. It outputs an analog voltage proportional to the current, which can be read by microcontrollers like Arduino, ESP32, and Raspberry Pi.

This sensor is ideal for low-power monitoring, battery management, motor control, and smart energy systems in IoT and embedded applications across Bangladesh. The sensor provides galvanic isolation, ensuring safety while monitoring high-current circuits.

Key Features:

• Current Range: ±5A (AC/DC)

• Output: Analog voltage (centered at Vcc/2)

• Operating Voltage: 5V

• Hall-effect based sensing with electrical isolation

• Low noise and fast response

• Simple 3-pin interface (VCC, GND, OUT)

• Compact module with mounting holes

Applications:

• Battery charging and discharging current monitoring

• Home appliance and motor current sensing

• IoT energy metering and power analytics

• Industrial control systems

• Educational and low-power electronics projects in Bangladesh

The ACS712-5A module is a compact, reliable, and cost-effective current sensing solution for precise measurement of low currents in various electronics and IoT systems.