Arduino Secret Knock Pattern Door Lock | “Knock, Knock!“ Lock

Hey friends in this video I will show you how to make Knock Pattern Door Lock System Start Your FREE Trial Altium PCB Designer:- ​​ Visit my Website to Download Codes and Circuit Diagrams:- Materials:- Arduino UNO / NANO Relay module 5V Solenoid Lock Speaker LED Resistor 220, 10k, 1M Push Button Wires Breadboard Follow me on:- Website:- Facebook:- Facebook:- Instagram:- Twitter:- ---------- VIRAL SCIENCE © -----------