Wiring configuration to meet the SPE standard. You’ll find rather detailed hardware documentation and instructions to get started with the Arduino UNO R4 WiFi, including wiring and termination ...

PIN Code Access: Secure the system with a 6-digit PIN. LCD Display: 16x2 LCD for user interaction and status updates (e.g., "Enter Pin", "Alarm Active", "Motion Detected"). Keypad Input: A 4x4 matrix ...

Arduino-based digital door lock using keypad & LCD - Virmeher/Password-Door-Lock-Arduino. Skip to content. Navigation Menu Toggle navigation. Sign in Product ... This is a password-based door lock ...