SparkFun Non-Invasive Current Sensor - ADE7953 (Qwiic)

The SparkFun Qwiic ADE7953 Non-Invasive Current Sensor provides a seamless way to monitor AC power usage without disrupting the circuit. Compatible with a non-invasive current clamp, it measures energy consumption via I2C communication, integrating data effortlessly into microcontroller projects. The sensor features a highly accurate ADE7953 IC for precise metering, capable of measuring both active and reactive energy with minimal error. It offers multiple communication interfaces, including I2C, SPI, and UART, selectable through solder jumpers.

For practical applications, simply wrap the current clamp around a live wire to safely gauge energy usage. This setup is ideal for projects that require real-time monitoring of power consumption, such as smart home systems or industrial equipment diagnostics. By providing instant IRMS readings with high precision, it ensures reliable data for energy management solutions.

Unique to this sensor is its dual Qwiic connectors, allowing for easy, solderless I2C connections. The board includes a 3.5mm audio jack for connecting the current clamp to Channel A, and also breaks out both current channels to plated-through-hole pins for flexible hardware integration. Though it measures AC current only, the sensor's design facilitates straightforward integration into existing systems without additional voltage measurement requirements.

The board's interrupt and zero-crossing pins offer advanced functionality. The interrupt pin can be configured to signal specific events, while the zero-crossing pin helps synchronize measurements with the AC cycle by outputting a pulse at each zero-crossing of the current waveform. This feature is particularly useful for applications that require precise timing and frequency determination.