Adafruit INA228 - I2C 85V, 20-bit High or Low Side Power Monitor

The INA228 power monitoring chip is an advanced tool equipped for optimal performance, supporting up to 85VDC common-mode and both high and low side measurements. Its 20-bit ADC ensures precise readings from milliamp to Amp, while the I2C interface streamlines configuration for alerts, oversampling, and gain adjustments.

This versatile breakout board performs the functions of two multimeters with exceptional precision. It measures high or low side DC current and bus voltage, automatically calculating power. Thanks to its expansive voltage, current, and temperature ranges, it delivers accurate data, over I2C, with better than 1% accuracy.

Compatible with any CircuitPython or Arduino-supported microcontroller and Raspberry Pi, it works seamlessly with 3V or 5V logic, handling bus voltages up to +85VDC. Ideal for DC voltage applications, it bypasses typical constraints faced by other devices, such as the need to change shunt resistors or ground reference issues.

The precision 15 milliohm shunt resistor design facilitates measurements up to +85V at 10A or 2.75A continuous, depending on configuration, with remarkable resolution. By measuring the voltage across the integrated shunt resistor with its 20-bit ADC, it achieves detailed readings across a wide current range.

Easy setup options accommodate both low-side and high-side measurements. With minor soldering required to connect the header for breadboard use, the breakout board comes complete with a 3.5mm terminal block and header, ready for integration into diverse projects.