Overview
Things
Story

Step 1: Building the lock
Step 2: The circuit diagram
Step 3: Fix the Arduino on the box
Step 4: Upload the code
Step 5: Done!

Published October 4, 2018 © GPL3+

Arduino RFID Servo Box

This tutorial shows how to make a servo lock.

IntermediateFull instructions provided32,701

Things used in this project

Hardware components

Arduino UNO

RFID reader (generic)

Only tested on RC522 RFID Module.

Jumper wires (generic)

Servos (Tower Pro MG996R)

Cardboard

A small box for the lock.

Software apps and online services

Arduino IDE

Arduino Web Editor

Hand tools and fabrication machines

Soldering iron (generic)

Only if you want to solder it.

Story

Let me tell you something:

Having a lock is a useful thing. And if it's made out of Arduino, then that's an even better thing. Let's get started.

Step 1: Building the lock

First I glued a cardboard strip on the lid of the box so when I put the lid back on

it was the bit in the box where the servo would hold. Then, I stuck the servo motor so that when it was at 90° angle, it would hold the cardboard and stop the box opening.

And it ended up like this:

1 / 3 • This is how it ended up after Step 1

Step 2: The circuit diagram

So the next step is connecting the Arduino. Connect the Arduino like this:

Circuit diagram

Step 3: Fix the Arduino on the box

I used sticky tape to fix the Arduino on the box.

Step 4: Upload the code

Don't forget to add the RFID Library to the Arduino IDE (you can find the library at the code bit of this tutorial).

Copy the code and paste it to your Arduino IDE and upload it.

Step 5: Done!

Then...you're done! If you have a question, I can answer it.

Code

Rfid Lock

#include <Servo.h>
#include <SPI.h>
#include <RFID.h>

RFID rfid(10, 9);

byte kart[5] = {208,74,76,37,243};
Servo myservo;
boolean card;

void setup()
{

  Serial.begin(9600);
  SPI.begin();
  rfid.init();
  myservo.attach(3);
  myservo.write(100);

}

void loop()
{

  if (rfid.isCard())
  {


    if (rfid.readCardSerial())
    {
      Serial.print("Found ID: ");
      Serial.print(rfid.serNum[0]);
      Serial.print(",");
      Serial.print(rfid.serNum[1]);
      Serial.print(",");
      Serial.print(rfid.serNum[2]);
      Serial.print(",");
      Serial.print(rfid.serNum[3]);
      Serial.print(",");
      Serial.println(rfid.serNum[4]);

    }
    for (int i = 1; i < 5; i++)
    {
      if (rfid.serNum[0] == kart[0] && rfid.serNum[1] == kart[1] && rfid.serNum[2] == kart[2] && rfid.serNum[3] == kart[3] && rfid.serNum[4] == kart[4])
      {
        card = true;
      }
      else {
        card = false;
      }
    }
    if (card == true)
    {
      Serial.println("Correct Card");
      myservo.write(20);
      delay(15000);
      myservo.write(100);
    }
    else
    {
      Serial.println("Wrong Card");

    }
    rfid.halt();
  }
}

Credits

Arca

1 project • 47 followers

Arduino RFID Servo Box

Things used in this project

Hardware components

Software apps and online services

Hand tools and fabrication machines

Story

Step 1: Building the lock

Step 2: The circuit diagram

Step 3: Fix the Arduino on the box

Step 4: Upload the code

Step 5: Done!

Schematics

Schematic

Circuit Diagram

Code

Rfid Lock

RFID Library

Credits

Arca

Comments

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Arduino RFID Servo Box

Arduino RFID Servo Box

Things used in this project

Hardware components

Software apps and online services

Hand tools and fabrication machines

Story

Step 1: Building the lock

Step 2: The circuit diagram

Step 3: Fix the Arduino on the box

Step 4: Upload the code

Step 5: Done!

Schematics

Schematic

Circuit Diagram

Code

Rfid Lock

RFID Library

Credits

Arca

Comments

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