RFID (Radio Frequency Identification) is an inexpensive and accessible technology. It can be used in many applications such as access control, security, asset tracking, people tracking, etc. You have ...

A Solenoid lock is just like a normal or manual lock. The difference is only the solenoid locks operate with the electricity. So this can be used at many places just like fingerprint security door ...

In a conventional door lock, there is a key to pull or push the latch, and we have to operate it manually, but in a solenoid lock, the latch can be operated automatically by applying a voltage across ...

Components Needed:** Arduino board (e.g. Arduino Uno) Adafruit R307 fingerprint sensor 20x4 LCD I2C module 6 solenoid locks Jumper wires Fingerprint Sensor Connections: Connect the fingerprint ...

Abstract: Most of the activities carried out all day are done outside the home. This condition happens in every major city. Therefore, it is ascertained that the occupants must leave many empty houses ...