Simple password based door lock system hindi

Agae aap apne door ya kisi kimti vastu ke liye password  based lock system chahte he to aako bade bhari pese kharch karne ki jarurat nahi he aaj me aapko ek simpal tarika bata raha hu jisse aap ye system bana sakte he iske liya aapko niche diya gaya circuit banana padega ye bahut hi simpal circuit he ise banane ke liya aapko na to microcontroller ki jarurat padegi na hi programing ki or na hi logic gets ki ise aap kuch switch or ek tranjistar or en motar se bana sakte ho

Door lock system banane ke liya aapko 9 swich chhiye hoge inka use password antry me hoga or ek bc548 tranjistar jo not get ki tarah work karega

Aapko jo bhi password banana he unko A B C D switch par likhiya in char switch ko dabane se ENTER batan dabae to door motar on hogi E F G H I galat kays he inme se ek bhi kay on rahi to door motar on nahi hogi sabhi kay ek sath dabane par bhi door on nahi hoga dooe keval abcd dabane par open hoga