Effect Sensor Module | 50A 100A AC/DC Linear Current | Arduino ACS758 Chip

This Hall current sensor module lets you safely measure AC or DC current in your projects. It uses an ACS758 Hall effect sensor. It gives a linear analog voltage output. This makes it a simple Arduino current sensor for checking power use or battery status. Features and Benefits - Measures AC and DC current - One module can track current in many systems, from DC motors to AC lines. - Galvanic isolation - The current path is separate from the electronics. This protects your microcontroller from high voltage. - Linear analog output - The output voltage changes directly with the current. This simplifies the code for your Arduino. - 50A and 100A options - Pick the model that fits the expected current draw of your RC model or power system. Applications - Building a power monitoring system for an Arduino project. - Measuring battery current for charge and discharge cycles in robotics. - Tracking the power consumption of motors or inverters. 🛠️ Tools Required To accurately test your Effect Sensor Module, you will need a digital multimeter capable of measuring voltage. For applying power, a regulated DC power supply adjustable from 3.3V to 5V is essential, consistent with the module's operating voltage. Jumper wires with PFF-T connectors or suitable adapters will be necessary for making secure connections. A breadboard can be useful for setting up the testing circuit safely. 📌 Pinout Identification The Effect Sensor Module features a PFF-T connector type. While specific pin labels for the ACS758 chip are not provided in the specifications, standard Hall Effect sensors typically have at least three pins: VCC (power input, 3.3V-5V for this module), GND (ground), and an output pin (Vout). The output type for this product is Linear Analog. Carefully identify these pins on your specific sensor module before connecting power to prevent damage. 🧪 Method 1: Testing On-Bench (Removed from Circuit) This method allows you to test a Hall Effect sensor module independently. It helps determine if the specific sensor is functioning correctly before integration into a larger circuit. This approach is ideal for diagnosing a faulty module or verifying the output of a new sensor. Understanding how to test a Hall Effect sensor in this isolated manner provides a baseline for troubleshooting. Setup Connect the Effect Sensor Module to a regulated power supply. Ensure the power supply is set to the module's operating voltage range, between 3.3V and 5V. Connect the VCC pin to the positive terminal of the power supply and the GND pin to the negative terminal. Connect the output pin (Vout) of the sensor to the positive lead (red probe) of your digital multimeter, with the negative lead (black probe) connected to the sensor's GND. Set the multimeter to measure DC voltage. Testing Digital Sensors (Switch / Latch Type) While this Effect Sensor Module produces a Linear Analog output, understanding the principle of digital Hall sensors can be useful for comparison. Digital Hall effect sensors, sometimes called switch or latch type, provide a distinct high or low voltage output when a magnetic field is present or absent. To test them, you would observe a clear voltage change on the multimeter when a magnet is brought near the sensor. For this module, you would expect a continuous, varying analog voltage.