The Adafruit INA260 is a precision DC power sensor that measures current, voltage, and power on either the high or low side of your circuit. With an integrated 2 mΩ (0.002Ω) 0.1% shunt resistor and 16-bit ADC, it handles up to +36V DC at 15A continuous — delivering better than 1% accuracy over I2C.

Unlike low-side-only sensors that shift ground references, or high-side sensors that need swappable shunt resistors, the INA260 works on either side with no external shunt required. It's compatible with 3.3V or 5V logic and works with Arduino, CircuitPython, and Raspberry Pi.

Key Features

• Up to +36V DC, 15A Continuous – Wide measurement range for high or low-side sensing
• Integrated 2 mΩ Shunt Resistor – 0.1% precision, no external shunt needed
• 16-bit ADC – 1.5 mA current resolution with automatic power calculation
• High or Low-Side Measurement – Flexible wiring topology for any circuit configuration
• I2C Interface – Simple two-wire connection; up to 4 sensors per bus via address jumpers
• 3.3V & 5V Compatible – Works with Arduino, CircuitPython, Raspberry Pi, and more
• Bus Voltage Reporting – Monitors the supply voltage alongside current for complete power analysis

Ideal For

• Battery and solar panel power monitoring
• High-current DC system profiling (up to 15A)
• Embedded power consumption analysis
• Projects requiring both current and voltage measurement without external shunt resistors

Package Contents

• 1× Adafruit INA260 Power Sensor Breakout (assembled)
• 1× 5.08 mm Terminal Block
• 1× Header Strip

Resources

• Adafruit INA260 Guide