ACS712 current sensor

The ACS712 Current Sensor Module is a fully integrated, Hall-effect-based linear current sensor IC offering 2.4 kVRMS isolation and a low-resistance current conductor. This module operates from a 4.5V to 5.5V supply, making it compatible with standard 5V microcontroller systems like Arduino. It measures bidirectional currents ranging from -30A to +30A with a high sensitivity of 66mV/A (for the 30A variant). The sensor features an analog output that varies linearly with the current, allowing for precise monitoring. Its low internal conductor resistance (1.2mΩ) ensures minimal power loss. Common applications include motor control, load detection, battery chargers, and over-current protection in robotics and power management systems. Choose this module for its high isolation voltage, wide operating temperature range, and ease of integration into embedded systems.