I was able to enable the Mosquitto MQTT using instructable
Now I need to communicate my new wireless sensor to communicate with Mosquito in such a way that it will display tracker in which it shows the readings of sensor,
Also need to know how can to display the notification on smartphones whenever there will be some disruption takes place in defined ranges
But I am new to this are so need your suggestion and better solution which help to make it functional
Sorry if this is the wrong forum
Searching for Saas Monitor service which monitor my servers which are sitting in different providers .
This monitor tool will take as less CPU as possible , and will send info about the server to main Dashboard.
The info I need is CPU / RAM / my servers status (... (1 Reply)
Hi, I am experiencing troubles with dual monitors in fedora 16. During boot time both monitors are working, but when system starts one monitor automatically shut down. It happend out of the blue. Some time before when I updated system this happend but then I booted older kernel release and... (0 Replies)
Hello,
I am trying to get some information from the sensors on my pc. But i get confuse with what i get.
I don t know where to find out which sensors watches what..
I use "sensors" under ubuntu 10.10.
Here is the result of the cmd line sudo sensors.
the temp 3 indicates 79°C which... (0 Replies)
This Expect script provides expect with a list of IP addresses to Cisco IPS sensors and commands to configure Cisco IPS sensors. The user, password, IP addresses, prompt regex, etc. have been anonymized. In general this script will log into the sensors and send commands successfully but there are... (1 Reply)
I just installed lm-sensor in my terminal and it's working, however i really don't know how to analyze what I have, Any help will be appreciated, Thanks
Here is the reading in my terminal,
sensors
acpitz-virtual-0
Adapter: Virtual device
temp1: +40.0°C (crit = +124.0°C) ... (3 Replies)
Hello,
I would like to write a script that use the display as an input.
In the display there is a list of file. I want to use it as an array and this would be the input in my script. Does somebody know how do I make it? (2 Replies)
hi all
I am running a script monitor using source command.
the shell script monitor is used to execute a pl/sql procedure.
when i do
source monitor
and then
ps -ef | grep <procedure name>
i do not get any info
but when i do
sh monitor
and then
ps -ef | grep <procedure name>
i... (8 Replies)
mosquitto_pub(1)mosquitto_pub(1)NAME
mosquitto_pub - an mqtt version 3.1 client for publishing simple messages
SYNOPSIS
mosquitto_pub [-d] [-h hostname] [-i client_id] [-I client id prefix] [-p port number] [-q message QoS] [--quiet] [-r] { -f file | -l | -m
message | -n | -s} [ -u username [-P password] ] [ --will-topic topic [--will-payload payload] [--will-qos qos] [--will-
retain] ] -t message-topic
DESCRIPTION
mosquitto_pub is a simple mqtt version 3.1 client that will publish a single message on a topic and exit.
OPTIONS -d, --debug
Enable debug messages.
-f, --file
Send the contents of a file as the message.
-h, --host
Specify the host to connect to. Defaults to localhost.
-i, --id
The id to use for this client. If not given, defaults to mosquitto_pub_ appended with the process id of the client. Cannot be used
at the same time as the --id-prefix argument.
-I, --id-prefix
Provide a prefix that the client id will be built from by appending the process id of the client. This is useful where the broker is
using the clientid_prefixes option. Cannot be used at the same time as the --id argument.
-l, --stdin-line
Send messages read from stdin, splitting separate lines into separate messages. Note that blank lines won't be sent.
-m, --message
Send a single message from the command line.
-n, --null-message
Send a null (zero length) message.
-p, --port
Connect to the port specified instead of the default 1883.
-P, --pw
Provide a password to be used for authenticating with the broker. Using this argument without also specifying a username is invalid.
This requires a broker that supports MQTT v3.1. See also the --username option.
-q, --qos
Specify the quality of service to use for the message, from 0, 1 and 2. Defaults to 0.
--quiet
If this argument is given, no runtime errors will be printed. This excludes any error messages given in case of invalid user input
(e.g. using --port without a port).
-r, --retain
If retain is given, the message will be retained as a "last know good" value on the broker. See mqtt(7) for more information.
-s, --stdin-file
Send a message read from stdin, sending the entire content as a single message.
-t, --topic
The mqtt topic on which to publish the message. See mqtt(7) for more information on mqtt topics.
-u, --username
Provide a username to be used for authenticating with the broker. This requires a broker that supports MQTT v3.1. See also the --pw
argument.
--will-payload
Specify a message that will be stored by the broker and sent out if this client disconnects unexpectedly. This must be used in con-
junction with --will-topic.
--will-qos
The QoS to use for the Will. Defaults to 0. This must be used in conjunction with --will-topic.
--will-retain
If given, if the client disconnects unexpectedly the message sent out will be treated as a retained message. This must be used in
conjunction with --will-topic.
--will-topic
The topic on which to send a Will, in the event that the client disconnects unexpectedly.
WILLS
mosquitto_sub can register a message with the broker that will be sent out if it disconnects unexpectedly. See mqtt(7) for more informa-
tion.
The minimum requirement for this is to use --will-topic to specify which topic the will should be sent out on. This will result in a non-
retained, zero length message with QoS 0.
Use the --will-retain, --will-payload and --will-qos arguments to modify the other will parameters.
EXAMPLES
Publish temperature information to localhost with QoS 1:
o mosquitto_pub -t sensors/temperature -m 32 -q 1
Publish timestamp and temperature information to a remote host on a non-standard port and QoS 0:
o mosquitto_pub -h 192.168.1.1 -p 1885 -t sensors/temperature -m "1266193804 32"
Publish light switch status. Message is set to retained because there may be a long period of time between light switch events:
o mosquitto_pub -r -t switches/kitchen_lights/status -m "on"
Send the contents of a file in two ways:
o mosquitto_pub -t my/topic -f ./data
o mosquitto_pub -t my/topic -s < ./data
Send parsed electricity usage data from a Current Cost meter, reading from stdin with one line/reading as one message:
o read_cc128.pl | mosquitto_pub -t sensors/cc128 -l
BUGS
mosquitto_pub bug information can be found at http://launchpad.net/mosquitto
SEE ALSO mqtt(7)mosquitto_sub(1)mosquitto(8)libmosquitto(3)AUTHOR
Roger Light <roger@atchoo.org>
5 February 2012 mosquitto_pub(1)