DS1822 man page on DragonFly

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DS1822(3)		     One-Wire File System		     DS1822(3)

NAME
       DS1822 - Econo 1-Wire Digital Thermometer

SYNOPSIS
       Thermometer.

       22  [.]XXXXXXXXXXXX[XX][/[  | die | power | temphigh | templow | trim |
       trimblanket | trimvalid | ]]

FAMILY CODE
       22

SPECIAL PROPERTIES
   power
       read-only,yes-no
       Is the chip powered externally (=1) or from the parasitically from  the
       data bus (=0)?

   temperature
       read-only, floating point
       Measured temperature with 12 bit resolution.

   temperature9 temperature10 temperature11 temperature12
       read-only,  floating  point Measured temperature at 9 to 12 bit resolu‐
       tion. There is a tradeoff of time versus accuracy  in  the  temperature
       measurement.

   fasttemp
       read-only, floating point
       Equivalent to temperature9

STANDARD PROPERTIES
DESCRIPTION
   DS1822
       The  DS1822 (3) is one of several available 1-wire temperature sensors.
       Alternatives are the DS18S20 (3),  DS18B20  (3)	as  well  as  tempera‐
       ture/voltage  measurements in the DS2436 (3) and DS2438 (3).  For truly
       versatile temperature measurements, see the protean DS1921 (3)  Therma‐
       chron (3).

       Although	 the DS1822 (3) can select between 4 resolutions, this program
       simplifies the interface by only implementing the fastest/roughest  and
       slowest/best.

ADDRESSING
DATASHEET
       http://pdfserv.maxim-ic.com/en/ds/DS1822.pdf

SEE ALSO
AVAILABILITY
       http://www.owfs.org

AUTHOR
       Paul Alfille (paul.alfille@gmail.com)

OWFS Manpage			     2003			     DS1822(3)
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