| DS18S20(3) | One-Wire File System | DS18S20(3) |
NAME
SYNOPSIS
Thermometer.
10 [.]XXXXXXXXXXXX[XX][/[
See the file man3/temperatures_mini.3so.
| latesttemp | die | power | temphigh | templow | trim | trimblanket | trimvalid |
See the file man3/standard_mini.3so.
]]
FAMILY CODE
10
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 resolution. There is a tradeoff of time
versus accuracy in the temperature measurement.
latesttemp
read-only, floating point
Measured temperature at 9 to 12 bit resolution, depending on the resolution of
the latest conversion on this chip. Reading this node will never trigger a
temperature conversion. Intended for use in conjunction with
/simultaneous/temperature.
fasttemp
read-only, floating point
Equivalent to temperature9
See the file man3/temperature_threshold.3so.
See the file man3/temperature_errata.3so.
STANDARD PROPERTIES
See the file man3/standard.3so.
DESCRIPTION
See the file man3/description.3so.
DS18S20 DS1920
The DS18S20 (3) is one of several available 1-wire temperature sensors. It has been largely replaced by the DS18B20 (3) and DS1822 (3) as well as temperature/vlotage measurements in the DS2436 (3) and DS2438 (3). For truly versatile temperature measurements, see the protean DS1921 (3) Thermachron (3).
ADDRESSING
See the file man3/addressing.3so.
DATASHEET
http://pdfserv.maxim-ic.com/en/ds/DS18S20.pdf
SEE ALSO
See the file man3/seealso.3so.
AVAILABILITY
http://www.owfs.org
AUTHOR
Paul Alfille (paul.alfille@gmail.com)
| 2003 | OWFS Manpage |