How to Make a Password Door Lock System Using Arduino, 4x4 Keypad, I2C LCD and Solenoid Lock
2:04
YouTubeReal Tech
How to Make a Password Door Lock System Using Arduino, 4x4 Keypad, I2C LCD and Solenoid Lock
Learn how to make a complete Password-Protected Door Lock System using an Arduino, 4×4 keypad, I2C LCD display, relay module, and a solenoid lock. In this step-by-step tutorial, you’ll see how the keypad inputs the password, how the LCD displays access messages, and how the relay unlocks the door when the correct password is entered. This ...
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