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The main components of this project are an Arduino UNO board, a servo motor, an LCD, and a keypad. The Arduino controls the servo motor, which locks or unlocks the door. The 16x2 LCD displays messages ...
Looking for practical Arduino projects? This guide shows how to control a relay from your smartphone using an Arduino Uno — ...
Upload the Code: Open the code in the Arduino IDE, connect your Arduino board, and upload the code. Enter Password: Use the keypad to enter the 4-digit code (default is 1234). If the password is ...
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