Many time it is required to switch electrical appliances from a distance without being a direct line of sight between the transmitter and receiver. A RF based wireless remote control system (RF Transmitter & RF Receiver) can be used to control an output load from a remote place. RF transmitter, as the name suggests, uses radio frequency to send the signals at a particular frequency and a baud rate.
Here we have used RF434 MHz modules to make wireless remote. Using this remote, we can control the appliances within the range of 30 to 100 meters. This project has two sections, one is transmitter section and the other is receiver section. We have connected these modu;es with microcontroller uart which provide a secure way to ON/OFF electrical appliances.
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