Current Sensor 30A ACS712

Sensing and controlling current flow is a fundamental requirement in a wide variety of applications including, over-current protection circuits, battery chargers, switching mode power supplies, digital watt meters, programmable current sources, etc. This ACS721 current module is based on ACS712 sensor, which can accurately detect AC or DC current. The maximum AC or DC that can be detected can reach 30A, and the present current signal can be read via analog I / O port of Arduino.     There are also the 5A and 20A version for your choice

Specification

• Supply Voltage: 4.5V~5.5V DC
  
• Measure Current Range: -30A~ 30A
  
• Sensitivity: 66mV/A
  

External Link & Download

• ACS712 Datasheet
  
• ACS712 Program
  
• Useful Introduction_1 from embedded-lab.
  
• Useful Introduction_2 from embedded-lab.