DESCRIPTION : This project demonstrates how to interface a 4x4 matrix keypad with an LCD (16x2) display using an Arduino board. The system captures key presses from the user via the keypad and ...
Hardware Arduino Nano RC522 RFID (SPI) 4×4 Keypad IR sensor (vehicle detect) Servo motor (gate) Buzzer 16×2 I2C LCD (address 0x25) LEDs (Green/Red) Pin Configuration RC522: RST D9, SS/SDA D10, MOSI ...
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