I. WIRELESS COMMUNICATION
◊ Minor Project : This was based on Theoretical matter
Synopsis:
It includes radio and TV broadcasting, point to point communication or two-way communication by using RF and IR signals for the transmission. It is also used in GSM technology.
II. DEVICE SWITCHING USING PASSWORD
◊ Major Project : This was based on Hardware implementation
Synopsis:
This project is the circuit which can switch on only one device at a time, out of a maximum of nine connected devices. To switch on/off the device you need to enter a correct 4-digit password via a keypad. In this. The hardware portion mainly consists of DTMF decoder, encoder and keypad using matrix technique. Relay operates the device which is controlled by a correct 4-digit password.

