Author(s)

Hui Wang and Weigong Zhang

Corresponding Author

Hui Wang

ABSTRACT

In recent years, wireless remote control technology in modern industrial and agricultural production, scientific research, national defense and other fields have range of applications.With the development of modern science and technology, the requirement of remote control technology is more and more sophisticated, designers need to overall consideration, optimization design of the remote control system. Because the radio waves are transmitted by launch in all directions, can cross the barrier, and can spread to far distance, so it can control in large area and space, become the main way of remote control, remote control of home appliances technology is applied very much.We design remote control eight leds is one of the small application, is mainly designed by FSK modulation, made into high frequency signal to send signals to the receiver, then by receiver demodulation rebuilt the useful signal, to control circuit, by controlling the driving power to complete control lamp, including the signal transmitting and receiving is the key, and the remote control code decoding of the circuit design, and gives some system anti-interference and energy saving measures.

KEYWORDS

Wireless remote control; FM oscillation; encoding decoding chips; demodulation; control circuit