Arduino - Keypad | Arduino Tutorial

Edu Coore on Instagram: "It's work or not 🤔 Locks are broadly **mechanical** or **electronic/smart**—mechanical examples include **pin-tumbler, lever, wafer, disc-detainer, padlocks,** and **deadbolts**, while electronic types include **keypad, RFID/card,** and **biometric** systems. They work by arranging internal parts (pins, levers, wafers, or disks) so only the correct key, code, card, or biometric input aligns components to let the lock’s core turn and release. The main purposes are **secu

4x4 Keypad Interfacing with ATmega32 Microcontroller