Security Keypad Lock

Hi, I made an instructable that is a keypad lock and a security camera that is set up with some wires and a arduino, this is perfect if you need a lock something with a low price

Arduino

servo

male to male wires

femal to male

wifi camera

Keypad Wiring

1st wire goes into 2

2nd wire goes into 3

3rd wire goes into 4

4th wire goes into 5

5th wire goes into 6

6th wire goes into 7

7th wire goes into 8

8th wire goes into 9

Servo Motor

The power wire goes into 5v

The ground wire goes into ground

The active wire goes into 10

First go to the app Arduino and click the 6 dots in rows of 3. There you should see Web Editor, Click on that and type this code into the sketchbook there.

#include

#include

// Set up keypad variables:

int numKeyPresses = 0;

// Track number of key presses int maxKeyPresses = 3;

// Only allow 3 digits to be entered int keyPresses[3] = { 0, 0, 0 };

// Initialize an empty array to hold input const byte numRows = 4;

// # of rows on the keypad const byte numCols = 4;

// # of columns on the keypad // Set up servo variables: int angle = 180;

// Angle in degrees to position servo [0-180] int angleMultiplier = 1;

// Multiply by each digit, divide by 10 on each input Servo servo;

// Create the servo object int servoPin = 3;

// Set the servo pin char keymap[numRows][numCols] = // Setup the keypad layout { {'1', '2', '3', 'A'}, {'4', '5', '6', 'B'}, {'7', '8', '9', 'C'}, {'*', '0', '#', 'D'}, };

// Connect keypad ROW0, ROW1, ROW2 and ROW3 to these Arduino pins. byte rowPins[numRows] = { 11, 10, 9, 8 };

// Connect keypad COL0, COL1 and COL2 to these Arduino pins. byte colPins[numCols] = { 7, 6, 5, 4 };

// Create the Keypad Keypad kpd = Keypad( makeKeymap( keymap ), rowPins, colPins, numRows, numCols );

void setup() { Serial.begin(9600); // Start up serial comms resetAngleMultiplier();

// Start accepting numeric input servo.attach( servoPin ); // Attaches the servo to the servo object } // setup void loop() { char key = kpd.getKey(); if ( key ) // Check for a valid key { if ( key >= 0x41 && key <= 0x44 || key == 0x23 || key == 0x2A ) { resetInput(); Serial.println( "ERROR: Numeric input only!" );

} // ^ if invalid entry else // Else, entry is valid: { angle += angleMultiplier * ( key - 0x30 ); angleMultiplier /= 10; if ( numKeyPresses == maxKeyPresses - 1 ) { setServo( angle );

// Use the input to turn servo resetInput(); } else { numKeyPresses++; } Serial.println( (String) angle );

} } // if( key ) } // loop void setServo( int angle ) { if ( angle > 180 ) angle = 180; Serial.println( "Setting servo to " + (String) angle + " degrees." );

servo.write( angle ); // Set the servo position } // setServo void resetAngleMultiplier() { angleMultiplier = 1;

/* We started out with a multiplier of 10^0 (or 1). For each number we want to accept, we want to have a multiplier one order of magnitude greater. So, for example, for 5 digits, the multiplier starts out as 10 000. */ for ( int i = 0;

i < maxKeyPresses - 1;

i++ ) angleMultiplier *= 10;

} // resetAngleMultiplier void resetInput() { resetAngleMultiplier();

// Reset the numeric input angle = 0;

// Reset the angle numKeyPresses = 0;

// Reset number of key presses }

First hook up with wifi camera to a wonderbit, then plug in a USB cord into a power source.This should light up the wonderbit to a blue light, this shows that it is working. Then go to ur wifi on ur phone and turn it on, there you should see the wifi cameras name. after that you should download a app on ur device called "WIFI UFO". There you will hit play and then click on the camera at the top left of ur screen. Then you should see ur camera turn on and see where it is pointing at.

After all of this is done you should set up the looks of ur keypad. I used a 3D printer with a basic look of a keypad lock. What ever you put it in is fine as long as you can still have the camera seeing things and if you can still use the keypad. Just in case you want to do the same look as mine with a 3D printer, i will show you how i made my design.