i am thinking of using RF transmitter 433 Hz to tansfer the C programming code t RF receiver 433 Hz. RF receiver will be connected to PC's serial port by using MAX 232. it has to show the C pogramming code on receiver PC.

this is my block diagram ( seria port => pic16f877=> transmitter=> receiver=> serial port=> pic16f877=> LED )

i am planning to connect transmitter to RA0 of pic16f877 but i have no idea how to program this pin (RA0) in order to transfer my programming code ( code for lighting LED). i am using MikroC. anyone can help me or give me some example? please....

 

I would try an AVR that has bootstrap loading capability. That way, you can program the flash memory with data from any source to which the CPU has access (uarts, input ports, etc.)