user32069: I have made a prototype where I can send data from one arduino to another via Bluetooth(hc-05), they are working fine, but now I want to replace the BT module with RF module, how can I do that???

user13432: Yes, use VirtualWire or RadioHead. You might need to "evolve" your protocol to handle message fragmentation and loss. RadioHead has support for that. 
Cheers!

32069: <p>I have made a prototype where I can send data from one arduino to another via Bluetooth(hc-05), they are working fine, but now I want to replace the BT module with RF module, how can I do that???</p>
 13432: <p>Yes, use <a href="http://www.airspayce.com/mikem/arduino/VirtualWire/" rel="nofollow noreferrer">VirtualWire</a> or <a href="http://www.airspayce.com/mikem/arduino/RadioHead/" rel="nofollow noreferrer">RadioHead</a>. You might need to "evolve" your protocol to handle message fragmentation and loss. RadioHead has support for that. </p>

<p>Cheers!</p>
