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I need to transmit a string of message between two Radio frequency transmitter. The message will be stored a microcontroller (e.g. 8051). How to go about writing a program for it and how to interface between the micrcontroller and the transmitters. I am still an amauteur when comes to embeded programming. Any source code or info on this ?
Hi, What you need to do is decide on a protocol...may be you have to use 2 pairs of trans. and recev. When ever a receiver receives a command it has to send back some other character...if this character is recevied by the other trans. it means that the unit is within a specified range. For this you can make use of the USART. The above modules support RS-232. Any thing else... Rgds Raj Shetgar
What i wan to get is the circuit.. I can't seem to find any circuit.. Any site to recommend
http://instruct1.cit.cornell.edu/courses/ee476/FinalProjects/s2003/yc234/website/schematics.html