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rf transmitter /receiver module

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microlab

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hai all

how can we connect a rf transmitter module to one8051
and receiver to the other 8051 and transmit/receive data
with a range more than 15 meters
i checked in the net .it shows FSK and ASK type modules
what's the difference between them?
can we connect the same directly to the microcontroller?
any sample projects are available?


thank you all


ml
 

FSK(frequency shift keying)
ASK(amplitude shift keying)

FSK and ASK rf modules are ready available,they can be directly connected to
serial ports of uc

which modules u are going to use,

ASK modules are more costly than FSK

thanx and regards
 

hai
i am planning to use the summitek module
can we directly connect the module to the microcontroller?
or we need some additional circuits?


thanking you


ml
 

these modules r readlily available in de market.connect it to the serial port of the controller enable serial communication,set the baud rate.dont forget to put antenna(some wire)in the module..
 

Check Radiometrix modules.

http://www.radiometrix.co.uk/

Conect the data pin of the transmiter to TX MCU, and in the receiver conect to RX, then just use the micro as RS232 standart.
 

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