With advanced technology, people try to avail wireless technologies in different roles. In this paper, the RF modules are implemented as modernized wireless system to overcome the use of wire. RF transmitter and RF receiver are main devices of the system. And then LED, transformer, relay, and push buttons are used as supporting components of the system. HT12E and HT12D are mainly used for decoding and encoding the data. The HT12E encoder IC converts the 4 bit data from the 4 data pins that are connected to buttons into serial data. This serial data is sent to RF transmitter. The RF transmitter transmits this serial data using signals. At the receiver side, the RF receiver receives the serial data. This serial data is sent to HT12D decoder IC which converts into 4 bit parallel data. The 4 data pins of decoder are connected to LEDs. According to the button pushed, the LEDs can be turned ON and OFF meaning that the specific task or function can be carried out by mean of remote predefined key. In today’s world, there is a continuous need for wireless control using with transmitter and receiver in standard and modern living.
RF transmitter; RF receiver; serial data; parallel data; encoder; decoder
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