.TH WMBUSMETERS 1
.SH NAME
wmbusmeters \- listen to wireless mbus radio traffic and relay the decoded telegrams to other software

.SH SYNOPSIS
.B wmbusmeters [options] <device>{:suffix} (<meter_name> <meter_type>[:<mode>] <meter_id> meter_key>)*

.B wmbusmetersd <pid_file>

.SH DESCRIPTION

Wmbusmeters acquires wmbus telegrams, decodes them and relays them to
some other software for further processing.  It can for example listen
to radio traffic using dedicated wmbus dongles like (im871a,amb8465,cul,rc1180)
or a generic software defined radio dongle (rtl_sdr) with an RTL2832U.

After the received telegram has been decrypted and parsed, it can then
be relayed using a shell command, or stored in a log file.  The shell
commands can for example relay the telegram using MQTT (eg
mqtt_publish) sent to a REST API (eg curl) or store it in a database
(eg psql).

.SH OPTIONS
\fB\--addconversions=\fR<unit>[,<unit>] add conversion to these units for json and shell envs (GJ,F)

\fB\--alarmexpectedactivity=\fRmon-fri(08-17),sat-sun(09-12) Specify when the timeout is tested, default is mon-sun(00-23)

\fB\--alarmshell=\fR<cmdline> invokes cmdline when an alarm triggers

\fB\--alarmtimeout=\fR<time> Expect a telegram to arrive within <time> seconds, eg 60s, 60m, 24h during expected activity

\fB\--debug\fR for a lot of information

\fB\--device=\fR<device> override device in config files. Use only in combination with --useconfig= option

\fB\--donotprobe=\fR<tty> do not auto-probe this tty. Use multiple times for several ttys or specify "all" for all ttys

\fB\--exitafter=\fR<time> exit program after time, eg 20h, 10m 5s

\fB\--format=\fR(hr|json|fields) for human readable, json or semicolon separated fields

\fB\--help\fR list all options

\fB\--ignoreduplicates\fR=<bool> ignore duplicate telegrams, remember the last 10 telegrams. Default is true.

\fB\--field_xxx=yyy\fR always add "xxx"="yyy" to the json output and add shell env METER_xxx=yyy The field xxx can also be selected or added using selectfields=. Equivalent older command is --json_xxx=yyy.

\fB\--license\fR print GPLv3+ license

\fB\--listento=\fR<mode> listen to one of the c1,t1,s1,s1m,n1a-n1f link modes

\fB\--listento=\fR<mode>,<mode> listen to more than one link mode at the same time, assuming the dongle supports it

\fB\--listenvs=\fR<meter_type> list the env variables available for the given meter type

\fB\--listfields=\fR<meter_type> list the fields selectable for the given meter type

\fB\--listmeters\fR list all meter types

\fB\--listmeters=\fR<search> list all meter types containing the text <search>

\fB\--listunits=\fR list all unit suffixes that can be used for typing values

\fB\--logfile=\fR<dir> use this file for logging

\fB\--logtelegrams\fR log the contents of the telegrams for easy replay

\fB\--logtimestamps=\fR<when> add timestamps to log entries: never/always/important

\fB\--meterfiles=\fR<dir> store meter readings in dir

\fB\--meterfilesaction=\fR(overwrite|append) overwrite or append to the meter readings file

\fB\--meterfilesnaming=\fR(name|id|name-id) the meter file is the meter's: name, id or name-id

\fB\--meterfilestimestamp=\fR(never|day|hour|minute|micros) the meter file is suffixed with a timestamp (localtime) with the given resolution.

\fB\--nodeviceexit\fR if no wmbus devices are found, then exit immediately

\fB\--oneshot\fR wait for an update from each meter, then quit

\fB\--resetafter=\fR<time> reset the wmbus dongle regularly, default is 23h

\fB\--selectfields=\fRid,timestamp,total_m3 select only these fields to be printed (--listfields=<meter> to list available fields)

\fB\--separator=\fR<c> change field separator to c

\fB\--shell=\fR<cmdline> invokes cmdline with env variables containing the latest reading

\fB\--silent\fR do not print informational messages nor warnings

\fB\--trace\fR for tons of information

\fB\--useconfig=\fR<dir> load config files from dir/etc

\fB\--usestderr\fR write notices/debug/verbose and other logging output to stderr (the default)

\fB\--usestdoutforlogging\fR write debug/verbose and logging output to stdout

\fB\--verbose\fR for more information

\fB\--version\fR print version

.SH DEVICES
.TP
\fBauto:c1\fR detect any serially connected wmbus dongles and rtl_sdr dongles and configure them for c1 mode. Always try to use auto first.

.TP
\fBim871a:t1\fR look for an im871a dongle attached to any of the serial ttys and configure it for t1 mode.

.TP
\fBim871a[12345678]:t1\fR look for the im871a dongle with this particular id.

.TP
\fB/dev/ttyUSB0:amb8465:c1,t1\fR expect an amb8465 on this tty.

.TP
\fBrtlwmbus\fR use software defined radio rtl_sdr|rtl_wmbus to receive wmbus telegrams.This defaults to 868.95MHz, use for example \fBrtlwmbus:868.9M\fR to tune the rtl_sdr dongle to slightly lower frequency.

.TP
\fBrtlwmbus[alfa]:433M:c1,t1 rtlwmbus[beta]:868.9M:c1,t1\fR Use two rtlsdr dongles, one has its id set to alfa (using rtl_eeprom)
and the other set to beta. Alfa has an antenna tuned for 433M, beta has an antenna suitable for 868.9M.

.TP
\fB/dev/ttyUSB0:9600\fR read serial data from tty at 9600 bps, expects raw wmbus frames with the DLL crcs removed.

.TP
\fBstdin:rtlwmbus\fR read rtlwmbus formatted data from stdin.

.TP
\fBmyfile.txt:rtlwmbus\fR read rtlwmbus formatted data from this file instead.

.TP
\fBsimulation_xxx.txt\fR read telegrams from file to replay telegram feed (use --logtelegrams to acquire feed for replay)

.SH METER QUADRUPLES
.TP
\fBmeter_name\fR a mnemonic for your utility meter
.TP
\fBmeter_type\fR for example multical21:t1 (suffix means that we expect this meter to transmit t1 telegrams)
.TP
\fBmeter_id\fR one or more 8 digit numbers separated with commas, a single '*' wildcard, or a prefix '76543*' with wildcard.
.TP
\fBmeter_key\fR a unique key for the meter, if meter telegrams are not encrypted, you must supply an empty key: ""

.SH EXAMPLES
.TP

.TP
Wait for wmbus dongles to be inserted and then listen for c1 telegrams.
Print a summary of the telegram and whether wmbusmeters has a driver for decoding it.

% wmbusmeters auto:c1

Listen to C1 traffic using an im871a dongle attached to some tty.

% wmbusmeters im871a:c1

The im871a dongles have an id number that is printed when the dongle is started.
You can use this to specify which dongle to use for which linkmode.

% wmbusmeters im871a[12345678]:c1 im871a[22334455]:t1

.TP
Listen to both T1 and C1 traffic using rtl_sdr|rtl_wmbus and the standard frequency 868.95M, which
might need tweaking depending on the rtl_sdr dongle you are using.

% wmbusmeters rtlwmbus:868.95M

You can identify rtlsdr dongles this way as well. The id of the rtlsdr dongle is
set using rtl_eeprom. Assuming you want to listen to multiple frequencies, one dongle
has one type of antenna attached.

% wmbusmeters rtlwmbus[alfa]:433M:t1 rtlwmbus[beta]:868.9M:c1

.TP
Execute using config file /home/me/etc/wmbusmeters.conf and meter config files in /home/me/etc/wmbusmeters.d

% wmbusmeters --useconfig=/home/me

.TP
Start a daemon using config file /etc/wmbusmeters.conf and meter config files in /etc/wmbusmeters.d

% wmbusmetersd --useconfig=/ /var/run/wmbusmeters/wmbusmeters.pid

.TP
An example wmbusmeters.conf:

.nf
loglevel=normal
device=im871a[12345678]:c1
device=rtlwmbus:433M:c1,t1
logtelegrams=false
format=json
meterfiles=/var/log/wmbusmeters/meter_readings
meterfilesaction=overwrite
meterfilesnaming=name
meterfilestimestamp=day
logfile=/var/log/wmbusmeters/wmbusmeters.log
shell=/usr/bin/mosquitto_pub -h localhost -t "wmbusmeters/$METER_ID" -m "$METER_JSON"
alarmshell=/usr/bin/mosquitto_pub -h localhost -t wmbusmeters_alarm -m "$ALARM_TYPE $ALARM_MESSAGE"
alarmtimeout=1h
alarmexpectedactivity=mon-sun(00-23)
ignoreduplicates=false
json_address=MyStreet 5
.fi

.TP
An example wmbusmeters.d file:

.nf
name=MyTapWater
type=multical21:c1
id=12345678
key=001122334455667788AABBCCDDEEFF
json_floor=4

.SH AUTHOR
Written by Fredrik Öhrström.

.SH COPYRIGHT
Copyright \(co 2017-2020 Fredrik Öhrström.
.br
License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>.
.br
This is free software: you are free to change and redistribute it.
.br
There is NO WARRANTY, to the extent permitted by law.