Operating an electrical/electronic device through wireless communication is very commonly required and seems very interesting. The circuit of the project described here can operate such appliances. A few salient features of the circuit are shown below:
1. The circuit mainly comprises of a transmitter and a receiver component.
2. Whenever a signal is received by the receiver, it activates a switch which in turn turns the appliance on.
3. In this project, the transmitter component of the circuit is basically an Infrared (IR) Led which is configured to emit rays at a frequency of 38 kHz. For this purpose, NE 555 timer is used in astable mode.