#Door keypad serial#
#Door keypad full#
#Door keypad code#
#Door keypad password#

I originally meant to use a barrel jack for power but removed it when it came to putting everything together.

#Door keypad serial#

Without the serial interface we cannot flash programs onto it from the PC instead the programming is done on the actual Uno board and the chip is then placed onto the breadboard. The breadboard version contains a minimal amount of components needed to run programs. The schematic is based around an ATmega328p (The microcontroller used in the arduino Uno) with an arduino boot-loader.

#Door keypad full#

The above figure contains the full breadboard schematic made with Fritzing. If you're new to arduino you should still be able to do this project with a little extra effort. I also recommend having some experience in working with arduino before starting this project as it will make it much easier to deal with problems that may occur. Keeping a good variety of these helps a lot when starting electronics projects. It's always good to have a decent supply of common components like resistors, capacitors, diodes etc. Impact Drill(optional if drilling through a wall).ABS Plastic Box enclosure 180x120x55mm.Hopefully this instructable will be easy enough to follow so that you can learn something and have a cool device to keep out minor intruders.Д«elow is the list of components I used for this project If the scanner recognizes a fingerprint that has been enrolled then it will activate the relay and the a green status led for a few seconds, enough to open the door, enter and close it.

#Door keypad code#

When the code is entered correctly,the fingerprint scanner activates.

#Door keypad password#

If the password is input incorrectly then the display will show that the code was invalid and then revert to the default screen. To change the password the user would need to know the current/default password.

The user then has the option of pressing a button for entering the password or for changing the password. On power up the device displays a message on the LCD and a red status led lights up, indicating that the door is locked.

The basic operation of the device is as follows: I started this project because I wanted to work with a keypad and fingerprint sensor as well as become more familiar working with LCD's, I also needed a way to lock my door from the outside so I thought an electronic door-lock would be a great opportunity to over-engineer something and learn some cool stuff :)

It uses a keypad and fingerprint scanner to grant a user access by controlling an electric door strike with a relay.

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