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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.

Currently there are the following topics:

topic	interval	description
info/time	1 minute	current date and time
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
nerdctrl/open	n/a	opens the payload URL in a browser in the nerdarea
client/echelon	n/a	this is a retained topic, if it is available, the traffic stats script on echelon is running
system/echelon/traffic	1 minute	average incoming and outgoing traffic on ipb and kdg lines from echelon in bytes/s since last message
ingress/status/+	n/a	these are retained topics and show status of the ingres portals around the c-base
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