rotctl man page on DragonFly
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ROTCTL(1) Rotator Control Program ROTCTL(1)
NAME
rotctl - control antenna rotators
SYNOPSIS
rotctl [OPTION]... [COMMAND]...
DESCRIPTION
Control antenna rotators. rotctl accepts commands from the command
line as well as in interactive mode if none are provided on the command
line.
Keep in mind that Hamlib is BETA level software. While a lot of back‐
end libraries lack complete rotator support, the basic functions are
usually well supported. The API may change without publicized notice,
while an advancement of the minor version (e.g. 1.x to 3.x) indicates
such a change.
Please report bugs and provide feedback at the e-mail address given in
the REPORTING BUGS section. Patches and code enhancements are also
welcome.
OPTIONS
This program follows the usual GNU command line syntax, with long
options starting with two dashes ('-').
Here is a summary of the supported options:
-m, --model=id
Select rotator model number. See model list (use 'rotctl -l').
NB: rotctl (or third party software) will use rotator model 2
for NET rotctl (rotctld).
-r, --rot-file=device
Use device as the file name of the port the rotator is con‐
nected. Often a serial port, but could be a USB to serial
adapter or USB port device. Typically /dev/ttyS0, /dev/ttyS1,
/dev/ttyUSB0, etc. on Linux or COM1, COM2, etc. on Win32.
-s, --serial-speed=baud
Set serial speed to baud rate. Uses maximum serial speed from
rotator backend capabilities as default.
-t, --send-cmd-term=char
Change the termination char for text protocol when using the
send_cmd command. The default value is <CR>. Non ASCII printable
characters can be specified as an ASCII number, in hexadecimal
format, prepended with 0x. You may pass an empty string for no
termination char. The string -1 tells rotctl to switch to binary
protocol. See the send_cmd command for further explanation.
-L, --show-conf
List all config parameters for the rotor defined with -m above.
-C, --set-conf=parm=val[,parm=val]*
Set config parameter. e.g. --set_conf=stop_bits=2
Use -L option for a list.
-u, --dump-caps
Dump capabilities for the rotor defined with -m above and exit.
-l, --list
List all model numbers defined in Hamlib and exit. As of
1.2.15.1 the list is sorted by model number.
N.B. In Linux the list can be scrolled back using Shift-PageUp/
Shift-PageDown, or using the scrollbars of a virtual terminal in
X or the cmd window in Windows. The output can be piped to
'more' or 'less', e.g. 'rotctl -l | more'.
-i, --read-history
Read previously saved command and argument history from a file
(default '~/.rotctl_history') for the current session. Avail‐
able when rotctl is built with Readline support (see READLINE
below).
N.B. To read a history file stored in another directory, set the
ROTCTL_HIST_DIR environment variable, e.g.
'ROTCTL_HIST_DIR=~/tmp rotctl -i'. When ROTCTL_HIST_DIR is not
set, the value of HOME is used.
-I, --save-history
Write current session and previous session(s), if -i option is
given, command and argument history to a file (default
'~/.rotctl_history') at the end of the current session. Com‐
plete commands with arguments are saved as a single line to be
recalled and used or edited. Available when rotctl is built
with Readline support (see READLINE below).
N.B. To write a history file in another directory, set the
ROTCTL_HIST_DIR environment variable, e.g.
'ROTCTL_HIST_DIR=~/tmp rotctl -I'. When ROTCTL_HIST_DIR is not
set, the value of HOME is used.
-v, --verbose
Set verbose mode, cumulative (see DIAGNOSTICS below).
-h, --help
Show summary of these options and exit.
-V, --version
Show version of rotctl and exit.
N.B. Some options may not be implemented by a given backend and will
return an error. This is most likely to occur with the --set-conf and
--show-conf options.
Please note that the backend for the rotator to be controlled, or the
rotator itself may not support some commands. In that case, the opera‐
tion will fail with a Hamlib error code.
COMMANDS
Commands can be entered either as a single char, or as a long command
name. Basically, the commands do not take a dash in front of them, as
the options do. They may be typed in when in interactive mode or pro‐
vided as argument(s) in command line interface mode. In interactive
mode commands and their arguments may be entered on a single line:
Rotator command: P 123 45
Since most of the Hamlib operations have a set and a get method, an
upper case letter will be used for set method whereas the corresponding
lower case letter refers to the get method. Each operation also has a
long name; in interactive mode, prepend a backslash to enter a long
command name.
Example: Use "\get_info" to see the rotor's info.
Please note that the backend for the rotator to be controlled, or the
rotator itself may not support some commands. In that case, the opera‐
tion will fail with a Hamlib error message.
As an alternative to the READLINE command history features a special
command of a single dash ('-') may be used to read commands from stan‐
dard input. Commands must be separated by whitespace similar to the
commands given on the command line. Comments may be added using the
'#' character, all text up until the end of the current line including
the '#' character is ignored.
Example:
$ cat <<.EOF. >cmds.txt
> # File of commands
> set_pos 180.0 10.0 # rotate
> pause 30 # wait for action to complete
> get_pos # query rotator
> .EOF.
$ rotctl -m1 - <cmds.txt
set_pos 180.0 10.0
pause 30
get_pos 180.000000
10.000000
$
A summary of commands is included below (In the case of "set" commands
the quoted string is replaced by the value in the description. In the
case of "get" commands the quoted string is the key name of the value
returned.):
Q|q, exit rotctl
Exit rotctl in interactive mode.
When rotctl is controlling the rotor directly, will close the
rotor backend and port. When rotctl is connected to rotctld
(rotor model 2), the TCP/IP connection to rotctld is closed and
rotctld remains running, available for another TCP/IP network
connection.
P, set_pos 'Azimuth' 'Elevation'
Set position: Azimuth and Elevation as double precision floating
point values.
p, get_pos
Get position: 'Azimuth' and 'Elevation' as double precision
floating point values.
M, move 'Direction' 'Speed'
Move the rotator in a specific direction at the given rate.
Values are integers where Direction is defined as 2 = Up, 4 =
Down, 8 = Left, and 16 = Right. Speed is an integer between 1
and 100. Not all backends that implement the move command use
the Speed value. At this time only the gs232a utilizes the
Speed parameter.
S, stop
Stop the rotator.
K, park
Park the antenna.
C, set_conf 'Token' 'Value'
Set a configuration parameter. It is safe to give "Token" a
value of '0' (zero). "Value" may be a string up to 20 charac‐
ters.
See -L output
R, reset 'Reset'
Reset the rotator.
Integer value of '1' for Reset All.
_, get_info
Get misc information on the rotator.
At the moment returns 'Model Name'.
w, send_cmd 'Cmd'
Send raw command string to the rotator.
<CR> (or send-cmd-term, see -t option) is appended automatically
at the end of the command for text protocols. For binary proto‐
cols, enter values as \0xAA\0xBB
Locator Commands
These commands offer conversions of Degrees Minutes Seconds to other
formats, Maidenhead square locator conversions and distance and azimuth
conversions.
L, lonlat2loc 'Longitude' 'Latitude' 'Loc Len [2-12]'
Returns the Maidenhead locator for the given 'Longitude' and
'Latitude'.
Both are floating point values. The precision of the returned
square is controlled by 'Loc Len' which should be an even num‐
bered integer value between 2 and 12.
For example, "L -170.000000 -85.000000 12" returns "Locator:
AA55AA00AA00".
l, loc2lonlat 'Locator'
Returns 'Longitude' and 'Latitude' in decimal degrees at the
approximate center of the requested grid square (despite the use
of double precision variables internally, some rounding error
occurs). West longitude is expressed as a negative value.
South latitude is expressed as a negative value. Locator can be
from 2 to 12 characters in length.
For example, "l AA55AA00AA00" returns "Longitude: -169.999983
Latitude: -84.999991".
D, dms2dec 'Degrees' 'Minutes' 'Seconds' 'S/W'
Returns 'Dec Degrees', a signed floating point value.
Degrees and Minutes are integer values and Seconds is a floating
point value. S/W is a flag with '1' indicating South latitude
or West longitude and '0' North or East (the flag is needed as
computers don't recognize a signed zero even though only the
Degrees value only is typically signed in DMS notation).
d, dec2dms 'Dec Degrees'
Returns 'Degrees' 'Minutes' 'Seconds' 'S/W'.
Values are as in dms2dec above.
E, dmmm2dec 'Degrees' 'Dec Minutes' 'S/W'
Returns 'Dec Degrees', a signed floating point value.
Degrees is an integer value and Minutes is a floating point
value. S/W is a flag with '1' indicating South latitude or West
longitude and '0' North or East (the flag is needed as computers
don't recognize a signed zero even though only the Degrees value
only is typically signed in DMS notation).
e, dec2dmmm 'Dec Deg'
Returns 'Degrees' 'Minutes' 'S/W'.
Values are as in dmmm2dec above.
B, qrb 'Lon 1' 'Lat 1' 'Lon 2' 'Lat 2'
Returns 'Distance' 'Azimuth' where Distance is in km and Azimuth
is in degrees.
All Lon/Lat values are signed floating point numbers.
A, a_sp2a_lp 'Short Path Deg'
Returns 'Long Path Deg' or -RIG_EINVAL upon input error..
Both are floating point values within the range 0.00 to 360.00.
a, d_sp2d_lp 'Short Path km'
Returns 'Long Path km'.
Both are floating point values.
pause 'Seconds'
Pause for the given whole number of seconds before sending the
next command.
EXAMPLES
Start rotctl for RotorEZ using the first serial port on Linux:
$ rotctl -m 401 -r /dev/ttyS0
Start rotctl for RotorEZ using COM2 on Win32:
$ rotctl -m 401 -r COM2
Connect to a running rotctld with rotor model 2 ("NET rotctl") on the
local host and specifying the TCP port, and querying the position:
$ rotctl -m 2 -r localhost:4533 \get_pos
READLINE
If Readline library development files are found at configure time,
rotctl will be conditonally built with Readline support for command and
argument entry. Readline command key bindings are at their defaults as
described in the Readline manual
(http://cnswww.cns.cwru.edu/php/chet/readline/rluserman.html) although
rotctl sets the name 'rotctl' which can be used in Conditional Init
Constructs in the Readline Init File ('~/.inputrc' by default) for cus‐
tom keybindings unique to rotctl.
Command history is available with Readline support as described in the
Readline History manual (http://cnswww.cns.cwru.edu/php/chet/read‐
line/history.html#SEC1). Command and argument strings are stored as
single lines even when arguments are prompted for input individually.
Commands and arguments are not validated and are stored as typed with
values separated by a single space.
Normally session history is not saved, however, use of either of the
-i/--read-history or -I/--save-history options when starting rotctl
will cause any previously saved history to be read in and/or the cur‐
rent and any previous session history (assuming the -i and -I options
are given together) will be written out when rotctl is closed. Each
option is mutually exclusive, i.e. either may be given separately or in
combination. This is useful to save a set of commands and then read
them later but not write the modified history for a consistent set of
test commands in interactive mode, for example.
History is stored in '~/.rotctl_history' by default although the desti‐
nation directory may be changed by setting the ROTCTL_HIST_DIR environ‐
ment variable. When ROTCTL_HIST_DIR is unset, the value of the HOME
environment variable is used instead. Only the destination directory
may be changed at this time.
If Readline support is not found at configure time the original inter‐
nal command handler is used. Readline is not used for rotctl commands
entered on the command line regardless if Readline support is built in
or not.
N.B. Readline support is not included in the Windows 32 binary builds
supplied by the Hamlib Project. Running rotctl on the Windows 32 plat‐
form in the 'cmd' shell does give session command line history, how‐
ever, it is not saved to disk between sessions.
DIAGNOSTICS
The -v, --version option allows different levels of diagnostics to be
output to stderr and correspond to -v for BUG, -vv for ERR, -vvv for
WARN, -vvvv for VERBOSE, or -vvvvv for TRACE.
A given verbose level is useful for providing needed debugging informa‐
tion to the email address below. For example, TRACE output shows all
of the values sent to and received from the rotor which is very useful
for rotor backend library development and may be requested by the
developers.
EXIT STATUS
rotctl exits with:
0 if all operations completed normally;
1 if there was an invalid command line option or argument;
2 if an error was returned by Hamlib.
BUGS
This suspiciously empty section...
REPORTING BUGS
Report bugs to <hamlib-developer@lists.sourceforge.net>.
We are already aware of the bug in the previous section :-)
AUTHOR
Written by Stephane Fillod, Nate Bargmann, and the Hamlib Group
<http://www.hamlib.org>.
COPYRIGHT
Copyright © 2000-2011 Stephane Fillod
Copyright © 2011-2013 Nate Bargmann
Copyright © 2000-2010 the Hamlib Group
This is free software; see the source for copying conditions. There is
NO warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR
PURPOSE.
SEE ALSO
hamlib(3), rotctld(8)
Hamlib March 13, 2013 ROTCTL(1)
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