Description:
In generally, operate (switch on/off) all the electrical and electronics appliances such as fan, light, cooler, air conditioner, and so on through switches of the regular switch board. This manual switching of any home appliances is an inconvenient method for physically disabled or elders or even for normal young guys when frequent switching operation is required. Thus, this conventional manual switching method has to be overcome by an easier method of switching. This can be done using an advanced switching method like a remote control for electronic home appliances. We can use the unconventional remote control technology for controlling the home appliances easily without using the fixed wall switch boards. This work presented here is to controlled independent home electrical appliances through RF based remote system. From any place without any line of sight around the house, RF based wireless remote control system can change the state of the electrical appliances either in on state or off state. The controlling circuit is built around RF transmitter and RF receiver modules which are operating along with encoder IC and decoder IC with few passive components. The four different channels at the encoder are used as input switches and the four channels at the decoder output are connected to the appliances through a relay. Here the circuit is powered with 12V. The main objective of this work is to build the circuit without any programming skill and to make it work without line of sight requirement using RF technology.