The INA219 Bi-Directional DC Power Supply Sensor GY-219 Module is a high-precision current and power monitoring module based on the INA219 chip. It measures bus voltage, shunt voltage, current, and power consumption in both directions, making it ideal for battery management, solar systems, and Arduino-based energy monitoring projects.

Operating on an I2C communication protocol, it allows seamless integration with Arduino, Raspberry Pi, and other microcontrollers for accurate power analysis.