Published July 24, 2020 © LGPL

Door Lock

How to make IR Door Lock With Arduino and Motor Driver

BeginnerFull instructions provided2,515

Things used in this project

Hardware components

Arduino UNO

IR receiver (generic)

TV remote

Car door lock actuator

L298 motor driver

Jumper wires (generic)

Story

In this video, I show you how to make a door lock by using Arduino and motor driver. I also use TV remote for controlling door lock. I set two buttons of TV remote, one is for lock and other is for unlock. For making this project I am using:-

Arduino UNO

Motor Driver L298

Car door lock actuator

IR receiver

Jumper wires

TV Remote

Code

#include <IRremote.h>
#define irPin 3

IRrecv irrecv(irPin);
decode_results results;
#define in1 5
#define in2 6
void setup() 
{
    Serial.begin(9600);
    irrecv.enableIRIn();
    
    pinMode(in1, OUTPUT); 
    pinMode(in2, OUTPUT);
}
void loop()
{
   if (irrecv.decode(&results)) 
   {
    Serial.print(results.value, HEX);
    Serial.print(" - ");
    Serial.println(results.value);
      switch (results.value) 
      {
            case 1077989423:
            digitalWrite(in1,HIGH);
            delay(500);
            digitalWrite(in1,LOW);
            delay(250);
            break;
            case 1077964943:
            digitalWrite(in2,HIGH);
            delay(500);
            digitalWrite(in2,LOW);
            delay(250);
            break;
           
           }
 
   irrecv.resume();
   }
}