ARDUINO LASER Trip LOCK USING LDR & SOLENOID

These are the famous red laser lines that trigger an alarm when tripped. Usually these are created by a single laser, a series of reflectors/mirrors and an LDR sensor. They are commonplace in bank vaults, museums and they are usually the mechanism that saves people from being crushed by elevator doors.
Rather, this particular project shuts the door for a desired number of time when the laser is tripped with the help of Arduino Uno
Source Code and further instructions:
drive.google.c...