Useful remote control in electronic equipment

Remote control is a useful tool that saves the electrical equipment like TV, AC, fan from turning on or off frequently to make the desired change. The remote control gives the pleasure of turning the TV channels from the comfort of sitting at a distance. However a separate remote control is required for each device. A small number of signals are constantly flowing in this small device that can be held in the hand. Ultra sonic sound waves of 50 to 60 kHz used to be used but now electronic waves like infra red or LED have become remote. The remote control meets the receiver in the device opposite the waves and the receiver modifies the device accordingly.

Now it has become a universal remote. This remote can handle many devices.