Adafruit INA228 - I2C 85V, 20-bit High or Low Side Power Monitor - STEMMA QT / Qwiic

The INA228 Power Monitoring Breakout is a highly versatile and precise current sensing solution. With support for up to 85VDC common-mode voltage, high or low-side measurements, and an impressive 20-bit ADC, it provides extremely accurate power monitoring for applications ranging from milliamps to amps. This breakout is perfect for measuring both DC current and bus voltage, and it automatically calculates the power being used, offering better than 1% accuracy across a wide voltage, current, and temperature range.

Key Features:

• High or Low-Side Measurements: Supports measuring current on either the high side or low side of your circuit, offering flexibility in different setups.
• 20-Bit ADC: Delivers ultra-precise measurements with a resolution of 10uA per LSB (high current mode) or 2.5uA per LSB (low current mode).
• Impressive Voltage Range: Capable of measuring up to 85VDC bus voltage and 10A current, all while maintaining high accuracy.
• I2C Interface: Easily configurable over I2C for setting alerts, oversampling, and gain adjustments.
• Precision Shunt Resistor: Includes a 15 milliohm, 0.1% precision shunt resistor for accurate voltage measurement.
• Compatible with 3.3V or 5V Logic: Works seamlessly with microcontrollers like Arduino, CircuitPython-compatible devices, and single-board computers such as Raspberry Pi.

This breakout board is ideal for power monitoring projects that require flexibility and high precision. Whether you’re monitoring battery-powered devices, energy efficiency, or developing a power supply system, the INA228 can measure current and voltage precisely, making it an excellent choice for low-side or high-side current measurements.

The breakout comes fully assembled with a 3.5mm terminal block and header (light soldering required to attach header for breadboard use). With its compact design and ease of integration, the INA228 is a must-have for anyone needing detailed, high-precision power measurements in their electronics projects.