Sparkfun Electronics SparkFun Current Sensor Breakout - ACS723 (Low Current)

The SparkFun Current Sensor Breakout - ACS723 (Low Current) is a high accuracy board that utilizes the ACS723 for moderate AC and DC current sensing applications. The ACS723 sensor uses a Hall effect sensor to output a voltage relative to the current flowing through the IP+ and IP- pins on the board. The advantage of using a Hall effect sensor, specifically, is that the circuit being sensed and the circuit reading the sensor are electrically isolated meaning that, although your Arduino is running on 5V, ...