Am 29.06.2016 um 21:03 schrieb Colin Reese:
> Hello all,
>
> I have a Datanab TC to 1Wire that uses a MAX31850:
>
> http://www.datanab.com/sensors/1wire-%20thermocouple-sensor-thrmcpl_k.php
>
> The device reads fine using a DS9490R on Windows using a package I have
> written to read the device as in the datasheet (OneWire Viewer does not
> read temperature on the 31850).
>
> Using a DS2483 on owfs, I get some weird stuff. According to the man
> page here (http://owfs.org/uploads/DS1825.html), the temperature should
> give CJC, and thermocouple should give CJC-compensated temperature.
> These values are as follows (owfs is mounted in Celsius):
>
> Temp (CJT): -1.75
> TC: 417
>
> Clearly something is amiss. Moving the 1Wire connection without touching
> the TC gives:
>
> CJC: 22C
> TC: 55C
>
> Ideas?
>
We could also ask Paul Panish (CCed), who made the latest contributions
to module/owlib/src/c/ow_ds1820.c to support the MAX31850 properly.
Kind regards
Jan
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