This project demonstrates how pulses can be transmitted from one place to another place wirelessly using light as medium. One LED is connected at the transmitter side that blinks at frequency of applied pulses. At the receiver side, Light Dependent Resistor (LDR) is used to receive light pulses. IC555 is used at both ends. At transmitter side it is used to generate continuous pulses with variable frequency output from 1 Hz to 10 Hz.  At receiver side it is used to generate same pulses as per the trigger input applied by LDR.   Note – for visual effect (demonstration) the pulse frequency is kept low. The frequency can be kept high in terms of KHz also.