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jaycar zw3100 and zw3102 help

has anyone used these modules before?

they do look real simple but for the life of me i cant work out how to do something really simple.

if you dont know which kit im talking about. (spec sheets)
Transmitter: http://www.jaycar.com.au/productView.asp?ID=ZW3102
Receiver: http://www.jaycar.com.au/productView.asp?ID=ZW3100

well my simple and retarded question is how do you send a logic 1 down the line.

i know you can simply wire data into the transmitter and get it from the receiver.

i want it to give me a logic one when it comes into range.

my project is car approaches car park, logic 1 appears and i will put it into my PIC controller to power whatever i need.

how do i supply a logic 1 to the transmitter. so i can get a logic 1 from the receiver and into the PIC.

any help would be appreciated.

thanks in advance.
 
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