Keypad Modules are expensive so to relace them in this video i am going to show you how you can make combinational lock using push button and Arduino. You will need Arduino, 8x LEDs, 6X Buttons, ...

The following project demonstrates "A Real-Time Digital Clock" built using Arduino Uno R3, a 16x2 LCD display, and push buttons—no RTC module required. The project uses Arduino’s internal timing and ...