Attributes

Brand	-
Category	Robotics / STEM Teaching Tools / Sensors
Origin	-
Current Range	±30A
Sensitivity	66mV/A
Operating Voltage	5V DC
Output Type	Analog Voltage
Bandwidth	80kHz
Response Time	5µs
Isolation Voltage	2.1kV RMS
Connector Type	Screw Terminal
PCB Dimensions	31mm x 13mm
Compatibility	Arduino, Raspberry Pi, ESP32

6 reviews

Anonymous

Mar 29, 2026

Rating: 5/5

Works great with solar setup

Using this to track current from my small solar panel array. The isolation feature gives me peace of mind. Very satisfied with the performance.

Anonymous

Mar 21, 2026

Rating: 5/5

Reliable current monitoring

I am using this to monitor battery drain on a robot chassis. It handles the 30A surge currents without any issues. Highly recommended for robotics applications.

Anonymous

Mar 19, 2026

Rating: 5/5

Perfect for Arduino Projects

This sensor works flawlessly with my Arduino Uno. The readings are stable and the screw terminals make wiring very secure. Great value for the price.

Anonymous

Mar 17, 2026

Rating: 5/5

Excellent build quality

The PCB looks professional and the Hall effect sensor is properly mounted. No noise issues when placed near motors. Fast shipping too.

Anonymous

Mar 16, 2026

Rating: 4/5

Great for learning

Bought this for a university project on power consumption. The documentation online is plentiful, making it easy to get started. Works exactly as described.

Anonymous

Mar 03, 2026

Rating: 4/5

Good accuracy, needs calibration

The module is well-built and compact. I noticed a slight offset in the zero-current reading, but it was easily corrected in the code. Overall a solid choice for DIY electronics.

5 FAQ

Q: Is this compatible with 3.3V microcontrollers like ESP32?

A: Yes, it is compatible. However, since the output swings around 2.5V, you may need a voltage divider or an op-amp circuit to safely interface with 3.3V ADC pins to avoid exceeding their maximum input voltage.

Q: What is the maximum continuous current this can handle safely?

A: While the range is ±30A, for continuous operation, we recommend staying below 20A to prevent excessive heating and ensure long-term reliability without additional cooling.

Q: Does the package include connecting wires?

A: No, the package includes only the ACS712 module board. Connecting wires and headers are not included but are standard components easily sourced separately.

Q: Can this module measure AC current as well as DC?

A: Yes, the ACS712-30A module can measure both AC and DC current within its ±30A range.

Q: What is the output voltage when no current is flowing?

A: When no current is flowing, the output voltage is typically half of the supply voltage, which is approximately 2.5V for a 5V system.

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