Arduino starter advanced Kit hydrogen you can make the keys

you can make the keys hidden in the walls and desks

125KHz TK4100 ID thin card

Here all the process is commanded by Arduino like taking an image of finger print

Supply Voltage Min: 3V

Arduino starter advanced Kit hydrogen you can make the keysIntroduction : Contains all of the essential components required to start programming with the Arduino Uno board. Designed to evolve the professional level user. Features : Arduino Uno R3 Arduino USB programming Cable Servo Motor (1. 3 Kg. cm Standard) Matrix Keypad 16 Key (4x4) Character LCD 16 x 2 Male Pin Headers (2. 54 mm 40 pin) Water Level Sensor Line Tracker Sensor Ultrasonic Sensor ( Distance Measuring Module ) LED KIT (5 colors 10 LEDs)