Unable to use certain symbols in MQTT topics with emonCMS mqtt_input

[Jon (Jon Murphy)]

Escaping a character doesn’t help. The back slash is like any other ASCII character and is part of the topic key name.

If I send this:

mosquitto_pub -u ‘emonpi’ -P ‘emonpimqtt2016’ -t “emon/ecobee/Lil'bee” -m ‘1’

And I monitor with this:

mosquitto_sub -v -u ‘emonpi’ -P ‘emonpimqtt2016’ -t ‘emon/ecobee/#’
emon/ecobee/Lil'bee 1
emon/ecobee/Lil'bee 1
emon/ecobee/Lil'bee 1

But the Inputs webpage won’t accept the single quote. Or the back slash.

 

EDIT: I wonder if the above issue is related to this thread:

Newly created inputs not appearing in emonCMS via MQTT

Wow! That’s interesting and puts a different perspective on things! Just ran some tests to try this out and found as far as emonHub and Mosquitto are concerned numbers are fine, but any topics with numeric node names or numeric index’s (input names) are ignored by the emoncms MQTT input api. I currently have an emonPi running the very latest emonSD on the bench, it is also posting to emoncms.org. I tested this by commenting out the “nodename” line for the emonpi entry in emonhub.conf, withou…