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ACS712 Current Sensor- 20A
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A current sensing module based on the Allegro ACS712 Hall effect sensor, capable of accurately measuring both AC and DC current up to ±20 A. The module outpu...
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A current sensing module based on the Allegro ACS712 Hall effect sensor, capable of accurately measuring both AC and DC current up to ±20 A. The module outputs a proportional analogue voltage that can be read directly by an Arduino or other microcontroller via an analogue input pin.
Key Features
- Sensor – Allegro ACS712 Hall effect current sensor
- Current Range – ±20 A (AC or DC)
- Sensitivity – 100 mV/A
- Supply Voltage – 4.5–5.5 V DC
- Output – Proportional analogue voltage, readable by Arduino analogue pins
- Bidirectional – Measures current in both directions
Ideal For
- Overcurrent protection circuits
- Battery charger monitoring
- Digital watt meters
- Switching mode power supply monitoring
- Programmable current sources
Also Available
Package Contents
- 1× ACS712 Current Sensor Module (20 A)
Jargon buster
Plain-language definitions for the technical terms used above.
- DC
- DC means direct current, where electricity flows in one constant direction, as supplied by batteries, USB ports and many plug-pack power supplies. When a product specifies DC, it runs from a DC supply rather than mains AC, so you need to provide the correct voltage and polarity.
- microcontroller
- A microcontroller is a small computer on a single chip that runs a stored program and controls connected inputs and outputs such as buttons, sensors, displays and communication interfaces. In a device built around one, it is the part that executes the code and coordinates the device's behaviour.
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