Resources:
SparkFun Power Meter – ACS37800 (Qwiic) – SEN-29259 High-Precision Power Monitoring Module
The SparkFun Power Meter – ACS37800 (Qwiic) with SKU SEN-29259 is a compact, high-accuracy DC power monitoring module ideal for embedded systems, robotics, battery management, and energy-efficient design testing. Built around the Allegro ACS37800 power monitoring IC, this board measures voltage, current, and power simultaneously and communicates over the Qwiic I²C interface for easy integration with Arduino, Raspberry Pi, and other microcontrollers. The low-loss measurement path and SELV-rated voltage range make it suitable for safe low-voltage applications up to 60 VDC and current sensing up to ±30 A. Modular Qwiic connectivity simplifies wiring and enables quick prototyping without soldering.
The meter is perfect for makers, engineers, and developers who need precise real-time electrical parameter data in embedded projects, portable device power profiling, automation systems, and IoT devices. Its compatibility with the broader Qwiic ecosystem offers flexible expansion with sensors and peripherals, while the programmable I²C address and built-in EEPROM provide customization for complex measurement networks.
Key Features:
- Power Monitoring IC: Integrated Allegro ACS37800 for simultaneous DC voltage, current, and power measurement
- Qwiic I2C Interface: Easy plug-and-play connectivity with microcontrollers via Qwiic ecosystem
- Voltage Range: Safe SELV operation up to 60 VDC
- Current Sensing: +-30 A current measurement capacity
- Low Loss: 0.85 mΩ low resistance measurement path minimizes power dissipation
- Programmable Address: EEPROM-stored I2C address for flexible networking
- Compact Form Factor: Small footprint ideal for embedded and space-constrained applications
- Ecosystem Support: Compatible with Arduino, Raspberry Pi, and other I2C-capable boards.
