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.TH DIGITEMP 1 "June 2003"
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digitemp \- program to read from temperature sensors.
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DigiTemp uses the Dallas 1-wire bus to read temperatures from digital
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sensors attached to a serial port adapter. It handles initializing the bus,
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searching for attached devices, reading devices and custom log strings. It
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suports the following temperature devices: DS1820, DS18S20, DS18B20, DS1822
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It also handles the DS2406 1-wire hub switches, and DS2422 and DS2423
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DigiTemp uses either the DS9097 passive serial port adapter, or the
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DS2480B based DS9097U adapter (recommended).
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At least 1 action must be given, along with some optional arguments. Actions
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are one (and only on) of the
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Show summary of options.
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Initialize .digitemprc file, search the bus for all supported devices.
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Walk the full device tree and display the serial number and type of all
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devices detected on the bus.
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Set serial port to use. Make sure you have permission to access this port.
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.B \-l /var/log/temperature
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Send output to logfile, the output format is defined by the .B \-o
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Set digitemp configuration file. The default is .digitemprc in the current
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Read delay in ms. This sets the amount of time to wait between sending the
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temperature conversion command and reading the result. The DS18S20 takes
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about 750mS to do the temperature conversion. Default is 1000mS (1 sec).
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Read sensor number #, the # depends on the order of the sensors in the
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Quiet output, no copyright banner.
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Delay between samples (in seconds).
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Number of times to repeat the command.
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.B \-O"counter format string"
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See Counter Format below.
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.B \-o [1..3] ["output format string"]
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See Temperature Format below.
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The temperature format can be either a numeric value, or a string. The
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numeric values select pre-configured output formats:
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1 = One line per sensor, time, C, F (default)
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2 = One line per sample, elapsed time, temperature in C
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3 = Same as #2, except temperature is in F
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#2 and #3 have the data seperated by tabs, suitable for import into a
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spreadsheet or other graphing software.
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The format string uses strftime tokens plus 5 special ones for
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to output the hex serial number
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for seconds since Epoch.
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The case of the token is important! The default format string is:
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"%b %d %H:%M:%S Sensor %s C: %.2C F: %.2F" which gives you an
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output of: May 24 21:25:43 Sensor 0 C: 23.66 F: 74.59
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Counter Format String
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The counter format string is similar, adding these tokens:
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is the counter #, which depends on its position in the .digitemprc file
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is the count in decimal.
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This manual page was written by Jes�s Roncero <jesus@roncero.org>,
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for the Debian project (but may be used by others). Modifications by Brian
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DigiTemp updates can be found on the http://www.digitemp.com website.
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