Arduino Door Lock with Password secured : Full DIY guide to prepare and installation

#arduino #setnfix

This is a door lock prepared with arduino uno. you can make this complete project by watching this video.

/*OPERATION

• Default password is 1234. then you can unlock using 1234 and pressing # within 8 seconds.

• the old password can be changed by entering default password and press *. if the password is correct

• you can enter new password and save it by pressing *.

• if the old password is wrong, power will be cut off.

• unlock password is given 8 seconds and change the password is allowed 15 seconds.

• There is a CUT OFF relay and a power supply relay. you have to press the power on switch to supply the power

• to the arduino. then the relay will be activated to supply the power.

• If you have entered a wrong password or at the end of given time period, CUT OFF relay will be activated and will be

• disconnected the power supply.

• USE 12V BATTER AND THIS CUT OFF RELAY METHOD WILL BE A CAUSED TO KEEP THE BATTERIED LONG TIME.

• 12V RELAY

• 4*3 MATRIX KEY PAD

• 3V/5V RELAY

• 12V SOLENOID DOOR LOACK

• PUSH BUTTON SWITCH

• LEDS,

• 120OHM, 1K RESISTORS

• ATMEGA 328P

• 16MHZ CRYSTAL

• 22PF CAPACITOR

• 104PF CAPACITOR

• D313 TRANSISTOR

• 2N2222 TRANSISTOR

• 100UF CAPACITOR

• ARDUINO UNO BOARD

• WIRES

• WIRE CONNECTORS

• SOLDERINGIRON

• VERO BOARD

• BATTERY CASING

• BATTERIES (12V)

• 1N4007 DIODE

• SCREW NAILS

• NUTS AND BOLTS

• SPACES

• ---

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