INA219 current sensor

The INA219 Zero-Drift, Bidirectional Current/Power Monitor is a digital sensor module designed for precise current and power measurement in electronic circuits. It operates by measuring the voltage drop across an internal or external shunt resistor, allowing for accurate current sensing up to ±3.2A with a resolution of 0.8mA. This module is ideal for monitoring power consumption in battery-operated devices, solar projects, and embedded systems. Key features include a wide operating voltage range (3.3V to 5V for the logic, up to 26V for the bus), high-side voltage measurement, and a simple I2C interface for easy integration with microcontrollers like Arduino, ESP32, and Raspberry Pi. It provides real-time data for current, voltage, and calculated power, making it an essential tool for energy auditing and power management applications.