home made 1-wire temp sensor won't work

[thespriteman]

Hi there,

i tried to create an 1-wire temprature sensor using the following scheme:



and now i tried it using LogTemp (http://www.mrsoft.fi/ohj01en.htm)

but it keeps telling me: "1-Wire network does not exist"

how can i troubleshoot this?

[Edit 19-05-2012 23:52]

after some testing and searching i got it working with this scheme:




With Regards,

[technofreak]

You can use this circuit as 1 Wire to RS232 Interface.
I can provide you the PCB files if you plan to make your own..