Bluetooth Door Lock

How to make Bluetooth Door Lock by Using Arduino

May 22, 2020

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hc-05

bluetooth control door lock

how to lock an unlock door wit

door lock

Components and supplies

Arduino UNO

2.2k Resistor

Relay (generic)

Car door lock actuator

Jumper wires (generic)

BD139 Transistor

Tools and machines

Soldering iron (generic)

Hot glue gun (generic)

Apps and platforms

Arduino Bluetooth Controller

Project description

Code

Untitled file

arduino

1void setup() {
2Serial.begin(9600);
3 pinMode(8, OUTPUT);
4 pinMode(9,  OUTPUT);
5 }
6
7void loop() {
8  
9 if(Serial.available()>0) 
10   {     
11      char data= Serial.read();
12      switch(data)
13      {
14        case  'a': digitalWrite(8, HIGH);
15        delay(3000);
16        digitalWrite(8, LOW);break;
17        case 'b': digitalWrite(9, HIGH);
18        delay(3000);
19        digitalWrite(9,  LOW);break;
20        default : break;
21      }
22      Serial.println(data);
23   }
24   delay(50);
25}

void setup() {
Serial.begin(9600);
 pinMode(8, OUTPUT);
 pinMode(9,  OUTPUT);
 }

void loop() {
  
 if(Serial.available()>0) 
   {     
      char data= Serial.read();
      switch(data)
      {
        case  'a': digitalWrite(8, HIGH);
        delay(3000);
        digitalWrite(8, LOW);break;
        case 'b': digitalWrite(9, HIGH);
        delay(3000);
        digitalWrite(9,  LOW);break;
        default : break;
      }
      Serial.println(data);
   }
   delay(50);
}

Downloadable files

Door Lock

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