Description
Reviews
| 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 |
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.
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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