ACS712 20A Range Hall current detection module ACS712 module for arduino – KSH 250 at HIMASTORES Mombasa – best electronics in Kenya
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ACS712 20A Range Hall current detection module ACS712 module for arduino

SKU: HMJ786 Category: Sensors
KSH 250.00
Out of Stock

Product Description

ACS712 20A Hall Current Detection Module for Arduino

High-Precision Current Sensor for Arduino Projects

The ACS712 20A module provides accurate current measurement using Hall effect technology, ideal for DC and AC current monitoring in Arduino projects.

Wide 20A Range - Measures positive and negative currents up to ±20A
Medium Sensitivity - 100mV/A analog output for balanced readings
Operates on 5V power supply with onboard indicator LED
Output voltage is VCC/2 (2.5V) when no current flows
Protect from external magnetic fields for accurate readings

Technical Specifications

ParameterValue
ChipACS712ELC-20A
Current Range±20A
Sensitivity100mV/A
Supply Voltage5V
Output TypeAnalog (VCC/2 at zero current)
Bandwidth80kHz
Isolation Voltage2.1kV RMS

= Key Features =

Hall Effect Based - Galvanic isolation for safety

Balanced Sensitivity - Suitable for medium current loads

Factory Trimmed Accurate outof-box performance

Compact Module - Easy breadboard integration

Low Noise - Stable analog output

= Applications =

  1. Motor current monitoring
  2. Power supply load tracking
  3. Battery charging systems
  4. Overcurrent protection
  5. Robotics current sensing
  6. Power consumption analysis
Reliable AC/DC Sensing - Works with both current types
Arduino Compatible Simple 3wire connection

√ Includes screw terminals for easy wiring

√ LED indicator for power status

√ Ready for prototyping

Connection Guide

Module connections:

  • VCC: 5V from Arduino
  • GND: Ground
  • OUT: Analog pin (A0)
Connect VCC to Arduino 5V pin
Use ADC pin for reading output voltage
Do not exceed 20A continuous
Keep sensor away from strong magnets

Reading Current

Arduino analog conversion:

  • Read analog value on A0
  • Subtract zero offset (512 typical)
  • Divide by sensitivity (25 for 20A version)

Formula: Current(A) = (ADC reading - 512) / 25

Simple Calculation - Easy integration into projects

Realtime Monitoring Continuous current tracking

Accurate to 1.5% at room temperature
Used in power monitoring systems

√ Available in bulk packs

√ RoHS compliant component

Troubleshooting

No output:

  • Check 5V power connection
  • Verify OUT pin connection
  • Avoid loose wiring

Inconsistent readings:

  • Add capacitor for noise filtering
  • Shield from magnetic interference
  • Avoid sharing power with motors