Question Rf communication schematic

igeorge

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Apr 12, 2009
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Hello,
I do not have a clue if this is the best place to ask or not, but I try.
I have a PIC controller and I want to use the UART/I2C/SPI to send a string of 48 bytes BY AIR (wireless) to another PIC.
I do not know RF communication and I tried with some of the shelf cheap transmitters and receivers from chine, but no luck.
I am looking for some guidance/schematics/parts to use.
My PIC send to the UART port the 48 bytes string, and I want to receive it on the other PIC.
Please help me if you can.
I am a complete dummy on RF communication.
I want to start simple first with the cheap Chinese TX/RX modules, then replace them with some transceivers.
In the end of the application, it is a remote control.
I know, they are millions of them from China and cheap, but I want to implement my own encryption on the transmission.
I mean, each time, I send a different packet for the same function, and somebody listening will not decode it.
Thank you
 

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