Here is the circuit diagram of Electronic code lock system using 8051 microcontroller. It is very useful at residential places to ensure better safety. This system demonstrates a circuit named ...

Safer school design encompasses many elements of the built environment—from the property line to classroom door openings. All these pieces need to work together properly to enhance school safety and ...

Robb Elementary School, in Uvalde, Texas, where a shooter killed 21 people in May, had problems with locks on both interior classroom doors and entrances and exits to the school building, according to ...

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This is a simple password based door locking system circuit designed using 8051 microcontroller. It provides control to the actuating the load. It is a simple embedded system with input from the ...