Rentron RF Modules
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Anyone had any sucess using the Rentron TWS-434 and RWS434 modules to
communicate from a Stamp to a PC? I've got the transmitter connected to one
pin of a BS1 set to N2400, and the receiver tied to my PC serial port
through Analog Device's version of a MAX232.
I'm using the test code in the Rentron documentation and getting data, but
the character thats being sent is not whats being received. In their sample
code, ASCII characters 1-255 are being sent -- I see the alphabet and
numbers on the other end, but in reverse order. If I try to send a single
known character, I get a different one (always the same though) If I send
the character above or below it in the ASCII table, I receive a character
thats not even close to the next one.
I suspect it has to do with the MAX232 chip inverting the data stream, but I
don't have a scope here at the house to confirm. I've tried not inverting
the data on the BS1, but all I get is junk characters on the other end. Any
ideas?
communicate from a Stamp to a PC? I've got the transmitter connected to one
pin of a BS1 set to N2400, and the receiver tied to my PC serial port
through Analog Device's version of a MAX232.
I'm using the test code in the Rentron documentation and getting data, but
the character thats being sent is not whats being received. In their sample
code, ASCII characters 1-255 are being sent -- I see the alphabet and
numbers on the other end, but in reverse order. If I try to send a single
known character, I get a different one (always the same though) If I send
the character above or below it in the ASCII table, I receive a character
thats not even close to the next one.
I suspect it has to do with the MAX232 chip inverting the data stream, but I
don't have a scope here at the house to confirm. I've tried not inverting
the data on the BS1, but all I get is junk characters on the other end. Any
ideas?