Description

You can use this module directly with Arduino to measure current and power of a load, typically a lamp, heater or power distribution of an electrical system.

This module utilizes ACS712 Hall-effect based linear current sensor to measure current using the Hall Effect principle.

ACS712 current sensor can measure current AC or DC current ranging from +5A to -5A, +20A to -20A and +30A to -30A. You have to select the right range for your project since you have to trade off accuracy for higher range modules. This modules outputs Analog voltage (0-5V) based on the current flowing through the wire; hence it is very easy to interface this module with any microcontroller. So if you are looking for a module to measure current using a microcontroller for you project then this module might be the right choice for you.

Note : When there is no current pass through this module, the output voltage would be at a center voltage of 2.5V.

Features

• Operating voltage : 5V only
• Sensing current : 5/20/30A (depend on model)
• Intrusive current sensing method
• Output voltage : 0 – 5V
• Output voltage proportional to AC or DC currents
• Extremely stable output offset voltage
• Nearly zero magnetic hysteresis
• Dimension : 32 x 14 x 10 mm

Wiring

Attachments

• Datasheet – ACS712
• Introduction to ACS712 Current Sensor Module – Components101