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RF 433 MHz Modules are popularly used in remote control system . In Quadcopter , Robot remote control , Industrial remote control, telemetry and remote sensing etc. Get more details here RF Wiki
RF Module means Wireless Radio Frequency Module .RF module consists of two units . One Transmitter unit and another is Receiver unit . Basically RF modules are used to build wireless connection between two points . We can easily communicate over 300-500m distance through RF module . in this tutorial we are using RF Module at 433Mhz frequency and it supports baud rate 9600 . Although didn’t try this. In this tutorial i will use baud rate 2400 . Baud Rate [Wikipedia] We will use USART to interface RF Module with microcontroller . Now let See the RF Module 433 MHz Device.
Lets See the Code and Circuit diagram from this link and youtube video ......
hope you guys liked it.