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Detailed Description:

The ACS712 Current Sensor Module is a high-accuracy, Hall-effect-based current measurement module capable of detecting both AC and DC currents. Based on Allegro’s ACS712ELC chip, it outputs a linear analog voltage relative to the current passing through the onboard conductor. With galvanic isolation and fast response time, it is ideal for real-time monitoring in embedded electronics, automation, and energy metering systems. Available in three variants – 5A, 20A, and 30A, this module is compatible with Arduino, Raspberry Pi, NodeMCU, and other microcontroller platforms.

Key Features:

• Based on ACS712ELC Hall Effect IC

• Supports AC and DC current measurement

• Available in ±5A, ±20A, and ±30A versions

• Analog voltage output proportional to sensed current

• Galvanic isolation between current path and control circuitry

• High accuracy and linear output

• Simple 3-pin interface (Vcc, Out, GND)

• Onboard power indicator LED

• Compact and easy to mount

Technical Specifications:

How to Use:

1. Connect VCC (5V), GND, and OUT pins to your microcontroller (e.g., Arduino).

2. Feed your load current through the screw terminals (IN+ and IN−).

3. Use the analog output (OUT) to read voltage proportional to current.

4. The midpoint (2.5V at zero current) shifts up/down with the current direction and magnitude.

5. Use the formula:
   Current (A) = (Vout - 2.5V) / Sensitivity

Applications:

• Load current monitoring

• Solar power systems

• Overcurrent protection

• Industrial automation

• Smart energy meters

• IoT power sensing nodes

• Electric vehicle diagnostics

• Home appliances monitoring

• Battery management systems

Package Includes:

• 1 x ACS712 Hall Effect Current Sensor Module (Choose: ±5A / ±20A / ±30A variant)

• 1 x Set of Screw Terminals (pre-soldered or included)