Please Subscribe Our Channel
Like Us On Facebook: [ Ссылка ]
*******************************************************************
If You Want To Purchase The Project Or Code
Mail Us : man.suthar2012@gmail.com
Or
Message Us On FB Page : [ Ссылка ]
*******************************************************************
In this project door can be opened by entering OTP (One Time Password). A GSM module (SIM800l) is used to send the message to our mobile, which contain a random 4 digit number. By typing 4 digit gate can be opened.
![](https://s2.save4k.ru/pic/ugKBMX3xsvU/maxresdefault.jpg)