Solenoid door lock system using 4x4 keypad

In this video, I've shown how to make a password solenoid door lock security system using Arduino and keypad.
Required Components:
Arduino Board
4x4 keypad
Solenoid Lock
I2C LCD Display Module
16x2 LCD Display
HIGH Triggered relay Module
Arduino code link:
drive.google.com/drive/folder...
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[@prakashharash8380]

❤ Namaskar sir ji🎉

[@JCarbonnell]

my relay and arduino are powered (light on) but the lcd screen does no light on (it is lightning on an independent setup so it is not broken)

[@JCarbonnell]

screen is lighing but the arduino doesn't control it