.\" Copyright (c) 2004 B. Luevelsmeyer
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.Dd January 20, 2004
.Dt VC304 1
.Os
.Sh NAME
.Nm vc304
.Nd "read temperatures from a Voltcraft 304 thermometer"
.Sh SYNOPSIS
.Nm
.Ar serial_port
.Sh DESCRIPTION
The
.Nm
command reads temperature values from a Voltcraft 304
thermometer. The serial port the thermometer is connected to
must be provided as the required argument
.Ar serial_port .
.Pp
The output consists of 4 lines (one line per channel), stating
the temperature in plain text as tenths of a degree Celsius.
If there is no sensor connected to a channel, the
corresponding output line is "---".
.Sh FILES
.Bl -tag -width ".Pa /dev/null" -compact
.It /dev/cuaax
The serial port the thermometer is connected to.
.El
.Sh EXAMPLE
vc304 /dev/cuaa1
.Sh DIAGNOSTICS
Exit status is 0 on success, and not 0 if the command fails
for any reason. The error messages should be self-explanatory.