sfDevINA228.h File Reference

Header file for the SparkFun INA228 high-precision power monitor driver. More...

#include "sfDevINA2XX.h"

Go to the source code of this file.

Classes
class	sfDevINA228
	INA228 high-precision power/energy/charge monitor driver. More...

Detailed Description

Header file for the SparkFun INA228 high-precision power monitor driver.

sfDevINA228 extends sfDevINA2XX with INA228-specific measurement capabilities:

• 20-bit ADC with 24-bit measurement registers (VSHUNT, VBUS, CURRENT)
• 24-bit POWER register
• 40-bit ENERGY and CHARGE accumulation registers
• High-precision LSB scaling (312.5 nV shunt, 195.3125 uV bus, 7.8125 m-deg-C temp)
• Calibration using scale constant 13107.2 x 10^6

The measurement bodies themselves live once in sfDevINA2XX as individually templated/parameterized helpers; the methods below are thin forwarders that pass the INA228 types and constants. Like the base class, every method returns a SparkFun Toolkit error code; measured values are returned through reference (output) parameters.

Author

SparkFun Electronics

Date

June 2026

Copyright

Copyright (c) 2026, SparkFun Electronics Inc. This project is released under the MIT License.

SPDX-License-Identifier: MIT

See also

https://github.com/sparkfun/SparkFun_INA2XX_Arduino_Library