Comprehensive DC power sensor in a compact distribution board. It combines the functions of two meters by measuring DC current (high-side or low-side), bus voltage, and automatically calculating power, with better than 1% accuracy over a wide range of voltage, current, and temperature. Data is provided over I2C in a user-friendly format. - Compatibility and limits: Works with 3V or 5V logic and can measure bus voltages up to 36V DC. Not suitable for AC voltage. - Sensing performance: Internal 2 mΩ (0.002 Ω) shunt with 0.1% tolerance. The 16-bit ADC enables current measurements with a resolution of 1.5 mA. The very low shunt resistance means some multimeters may show a short circuit. - How it works: In high-side configuration, bus voltage measurement and power calculation are accurate. For low-side measurements, remove the jumper between V and VBUS and connect VBUS to the voltage bus. - Practical use cases: - Monitor a 24V battery or drive train in robotics for current, voltage, and power in real time. - Evaluate DC-DC converter efficiency on 5–12V systems. - Track solar or battery microgrid performance with automatic power readings. - Key benefits: simplifies hardware by replacing multiple meters, reduces wiring, and provides precise, easily read I2C data for monitoring, control, and analytics. Built as a compact, reliable board-friendly module suitable for integration into DC systems.