Embedded Password Based Access Control System Using 12C Protocol

The project is designed for access control with the help of a password only. A keypad is connected to the project to enter the password. For example, fatal electrical accidents to the line man are increasing day by day during the electric line repair due to lack of communication and coordination between the maintenance staff and the electric substation staff. The system is fully controlled by a microcontroller from the 8051 family. A matrix keypad is interfaced to the microcontroller to enter the password. The entered password is compared with the password stored in the EEPROM interfaced to the microcontroller of the 8051 family. If the password entered is correct, then only the line can be turned on/off. Activation / deactivation of the circuit breaker are indicated by a lamp (on/off) provided in the project.