Right? The result is an additional keypad that can be used to gain access…not by altering the existing electronic lock, but with a secondary mechanism that operates the inside door handle.

The system has a Keypad by which the password can be entered through it ... The code is built in a modular style to allow a user to find ways to modify project. In start the D Lock programs loads with ...

Some things don't need to be "smart." Yale's new Code keypad lock costs just $99 and doesn't connect to the internet. It's just a simple electronic lock. No need to worry about apps, software ...

Arduino Uno or any other Arduino I2C LCD MFRC522 RFID Reader Tags SG90 Servo motor 4X4 Keypad or 4X3 Keypad 3 X LED’s (Red, Green, Blue) 3 X 220 ohm resistors Buzzer 6 to 12V Power source (I have used ...