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Arduino-based Overload Motor Protection System

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In this tutorial, we will demonstrate how to build an efficient overload motor protection system using an Arduino and a current sensor. Motor overload can lead to overheating and damage, so it's crucial to implement a reliable protection mechanism. We will explain the working principle of the system and provide a step-by-step guide on connecting the current sensor to the Arduino. Additionally, we will showcase the programming code required to monitor the motor's current and trigger a protective action if an overload is detected. Whether you're a hobbyist or an engineer, this video will equip you with the knowledge to safeguard your motors effectively.


#define Relay A1
int analogPin = A0; // Current sensor output

long int sensorValue = 0;  // variable to store the sensor value read

void setup() {
  Serial.begin(9600);           //  setup serial
  pinMode(Relay, OUTPUT);

void loop() {

    sensorValue = analogRead(analogPin);

    // wait 2 milliseconds before the next loop

  Serial.println("ADC Value: ");
// set value on which you want to switch off Motor. normally motor oprate between value 512 to 525.
// I set 530 value on which motor switch off for 5 seconds.
//if(sensorValue > 530)
if(sensorValue > 550)
   digitalWrite(Relay, LOW);
  digitalWrite(Relay, HIGH);


Click to Watch Video of this Project

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