SKU: SENS-2931
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DFRobot Gravity Analog 20A Current Sensor AC/DC - Gravity PH2.0-3P Interface

₹1,109.00 (Inclusive of all taxes)
Out of Stock

The DFRobot Gravity Analog 20A Current Sensor is a Hall-effect based module compatible with 3.3V/5V systems like Arduino, Raspberry Pi, and ESP32. It provides isolated analog voltage output for precise measurement of both AC and DC currents up to 20A.

Features

  • Hall-effect principle for AC/DC current sensing up to ±20A.
  • Gravity 3-pin (PH2.0-3P) interface for plug-and-play connection with Arduino and compatible boards.
  • Integrated high-voltage isolation and non-conductive base plate for safe operation.
  • Wide supply voltage range from 3.3V to 5V DC.
  • Compact form factor with analog voltage output proportional to measured current.

Out of stock

Description

This current sensor utilizes a Hall-effect transducer, generating a magnetic field proportional to the current flowing through its integrated conductor. The onboard signal conditioning circuit converts this magnetic field into a clean, linear analog voltage output, enabling precise measurement of both alternating and direct currents.

Designed with safety as a priority, the module incorporates high-voltage isolation in its circuit design and features a non-conductive acrylic plate on the PCB bottom to prevent short circuits and electric shock hazards. Its standardized Gravity interface ensures effortless integration into a wide range of microcontroller-based projects and industrial control systems.

Key Features

  • Hall-effect based current sensing for both AC and DC measurements.
  • Wide measurement range from 0 to ±20 Amperes.
  • Operates from a 3.3V to 5V DC supply, compatible with most development platforms.
  • Gravity-series standardized 3-pin PH2.0 connector for tool-free wiring.
  • Built-in high-voltage isolation enhances operational safety.
  • Non-conductive acrylic plate protects against accidental shorts.
  • Compact PCB design with a small footprint for space-constrained applications.
  • Linear analog output voltage directly proportional to the sensed current.

Applications

  • Real-time current monitoring in robotics motor drivers and power distribution boards.
  • Energy consumption tracking and load profiling in smart home and IoT devices.
  • Over-current protection and fault detection in battery management systems (BMS).
  • Power supply and inverter output current measurement in industrial control panels.
  • Educational projects for demonstrating electrical principles and sensor interfacing.

Technical Specifications

Measurement PrincipleHall-effect
Current TypeAC & DC
Measurement Range0 to ±20A
Supply Voltage3.3V to 5V DC
Output SignalAnalog Voltage
InterfaceGravity PH2.0-3P
IsolationHigh-voltage Isolation
Safety FeatureNon-conductive Acrylic Base Plate
Series CompatibilityDFRobot Gravity Series

Frequently Asked Questions

What is the operating voltage range for this current sensor?

The module operates from a 3.3V to 5V DC power supply. This range makes it directly compatible with common microcontroller platforms like Arduino (5V), Raspberry Pi (3.3V), ESP32, and STM32 without requiring an external level shifter.

How do I wire and interface this Gravity sensor with an Arduino?

Connect the sensor's Gravity PH2.0-3P connector to your Arduino: the red wire (VCC) to 5V, the black wire (GND) to GND, and the blue wire (SIG) to an analog input pin (e.g., A0). The analog voltage read from the pin will be proportional to the current flowing through the sensor's terminal.

Can this sensor measure both AC and DC currents accurately?

Yes. Based on the Hall-effect principle, it can measure the magnetic field generated by any current, regardless of direction or type (AC/DC). The output is an analog voltage that corresponds linearly to the instantaneous current magnitude, allowing for accurate measurement of both current types.

What safety features are integrated into the design?

The module incorporates two key safety features: high-voltage isolation within the signal conditioning circuit to protect the low-voltage microcontroller side, and a non-conductive acrylic plate fixed to the bottom of the PCB. This plate prevents accidental contact with live solder points, mitigating risks of short circuits and electric shock.

Package Includes

  • 1 x DFRobot Gravity Analog 20A Current Sensor (AC/DC)

Additional Information

Weight 0.02 kg
Dimensions 7 × 6 × 3 cm