Dallas sensor ID

[xoseperez]

Originally reported by: Albert Weterings (Bitbucket: AlbertWeterings, GitHub: Unknown)

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I'm trying to get the ID of my Dallas sensors into a MQTT message together with the temperature. Is this already possible or can you point me to where in the code I can make changes to get this?

in a different application I log sensor values to a DB together with the sensor ID and time currently when I connect multiple Dallas sensors I can't identify the sensor. I would like to change this application to ESPurna there for the sensor ID is needed..

[xoseperez]

I see two options. The first one is to add the address to the topic and then parse the topic in your application, something like:

ESPURNA_343624/temperature/28FF732970160440 => 17.0

The second option is to publish the address for each "channel". You will then receive at least two messages like this:

ESPURNA_343624/temperature/0 => 17.0
ESPURNA_343624/temperature/0/address => 28FF732970160440

Then you can enable the JSON grouping in the MQTT tab to get all messages in the same payload (along with more info like timestamp, ip,...), something like:

ESPURNA_343624\data => {'temperature/0': 17.0, 'temperature/0/address': '28FF732970160440', ...}

This second option is less "invasive" so it's something I could add to the default build...

[xoseperez]

You can give a try to the second option in the dev branch, edit the sensor.h file to enable SENSOR_PUBLISH_ADDRESSES setting.

[xoseperez]

Original comment by Albert Weterings (Bitbucket: AlbertWeterings, GitHub: Unknown):

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I tested the changes as I found in [Link Text]170f0d5(Link URL)]https://bitbucket.org/xoseperez/espurna/commits/170f0d543c767e8e9a95223a36d3e6cef52bb295

For Dallas sensors I can confirm it works great. There is one downside in Node-red it is hard to handle with the identifier msg.payload.temperature/0 as it doesn't accept the slash so I first had to replace all slashes with other characters to get it working

Thank you for the effort putting into this issue

[xoseperez]

Good. I will release it with next version.

About your issue with Node-RED. You can use msg.payload['temperature/0']. Is not so clean but it works.

[xoseperez]

Released with 1.11.4

[xoseperez]

Removing milestone: 1.11.4 (automated comment)