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c-beam MQTT

MQTT is a machine-to-machine (M2M)/“Internet of Things” connectivity protocol. see: http://mqtt.org

We are running a mqtt server on c-beam.cbrp3.c-base.org on port 1883. It's only reachable from the internal network.

An up-to-date listing of artefacts and their topics can be found from https://github.com/c-base/c-flo/tree/master/participants

The content of the current participant folder (updated by running a grunt createMarkup command in c-flo)

artifact	description	inports topic	outports topic
ampel-nerd	pedestrian traffic light in front of the door to nerdarea	colors: ampel/nerd	n/a
barstatus-bar	c-base bar status sign at the bar	barstatus: bar/status	n/a
barstatus-c-lab	c-base bar status sign in the c-lab	barstatus: bar/status	n/a
barstatus-nerd	c-base bar status sign in the nerd area	barstatus: bar/status	n/a
c-beam	c-base on-board computer	n/a	userboarding: user/boarding usereta: user/eta playsound: c_out/play playrandomsound: c_out/loop saytext: c_out/Julia openurl1: nerdctrl/open openurl2: siri/open time: info/time barstatus: bar/status
c_leuse	c-base airlock	playsound: c_out/play playrandomsound: c_out/loop saytext: c_out/Julia	n/a
he1	c-base siri data rescue probe	openurl: he1/open	n/a
ingress-table	Ingress Table	n/a	cbase: ingress/status/+
mechblast	c-base workshop blaster	playsound: c_out/play playrandomsound: c_out/loop saytext: c_out/Julia	n/a
nerdctrl	c-base nerd control interface	openurl: nerdctrl/open playsound: c_out/play playrandomsound: c_out/loop saytext: c_out/Julia	openurl: nerdctrl/open
siri	c-base siri data rescue probe	openurl: siri/open playsound: c_out/play playrandomsound: c_out/loop saytext: c_out/Julia	openurl: siri/open

Currently there are the following topics:

topic	interval	description
ampel/mainhall	n/a	wie, ampel nerd, aber zusätzlich noch mit Gelb: {“red”: 1, “green”: 1, “yellow”: 1}
ampel/nerd	n/a	Beispiel JSON-Daten für die Message: '{“red”: 1, “green”: 0}'
c-base/crew	15 minutes	all of the below crew data
c-base/crew/members	15 minutes	crew member count
c-base/crew/last_update	15 minutes	ISO timestamp of the last update of the power data
c-base/crew/passive	15 minutes	number of passive members
c_out/loop	10 minutes	starts a new sound loop on c_out
c_out/play	n/a	playload plays various sound samples
c_out/Julia	n/a	playload plays announcements on c_out via tts with voice Julia
client/echelon	n/a	this is a retained topic, if it is available, the traffic stats script on echelon is running
info/time	1 minute	current date and time
ingress/status/+	n/a	these are retained topics and show status of the ingres portals around the c-base
nerdctrl/open	n/a	opens the payload URL in a browser in the nerdarea
system/echelon/traffic	1 minute	average incoming and outgoing traffic on ipb and kdg lines from echelon in bytes/s since last message
system/powermon	15 seconds	all of the below power data
system/powermon/counter	15 seconds	estimated power meter counter
system/powermon/last_update	15 seconds	ISO timestamp of the last update of the power data
system/powermon/load	15 seconds	current (estimated) power load in watts
system/powermon/load_low	15 seconds	lowest power load in watts
system/powermon/load_low_date	15 seconds	date lowest power load in watts was seen last
system/powermon/load_high	15 seconds	highest power load in watts
system/powermon/load_high_date	15 seconds	date highest power load in watts was seen last
system/powermon/raw	15 seconds	raw data from the LS110
user/boarding	n/a	triggered when a member logs in, message contains the username in JSON format

mqtt-sender

The topics from echelon are published with a small lua daemon, which can be easily extended. Check it out from: https://github.com/c-base/mqtt-sender

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c-beam MQTT

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