Javelin stamp and one wire protocol
Sourabh
Posts: 5
Hi,
I am trying to interface the javelin stamp and DS1820s and display the temparature on the LCD. I am also using the driver chip (ds2480b) because I belive javelin stamp does not support one wire protocol directly. However it does not work. Can anyone help me with the coding?
Thanks in advance.
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I am trying to interface the javelin stamp and DS1820s and display the temparature on the LCD. I am also using the driver chip (ds2480b) because I belive javelin stamp does not support one wire protocol directly. However it does not work. Can anyone help me with the coding?
Thanks in advance.
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Comments
http://pdfserv.maxim-ic.com/en/ds/DS2480B.pdf
I see a polarity pin.
Use Uart.dontInvert in your Uart declaration.
My guess is you must tie the DS2480B polarity pin to GND (direct 5V rs232)
but if that doesn't work, tie it to +5V.
Can you post your code?
There also may be something wrong with your protocol.
There is a ds2480b class here:
http://www.parallax.com/javelin/applications.asp#AN001
regards peter
Post Edited (Peter Verkaik) : 1/25/2006 11:16:25 PM GMT